Bai Zhu

Biodata

Power Progression

Background

Bai Zhu was formerly a wealthy but severely withdrawn shut-in from modern Earth. Before transmigrating, he was an obese otaku who spent much of his life indulging in expensive cosplay games and paid companionship; after arriving in the Hunter × Hunter world, he received an Achievement System that rewards completed objectives with Reiatsu, Kidō, Achievement Points, healing techniques, and other draws 1.

By the beginning of the story, he has spent months in Sankara Town, Kakin Kingdom, attempting to complete a regional achievement connected to the Creation Society church. He lives under the care of Aunt Hannah and Uncle Gelo, helping with their business and treating them as found family 1 2.

A hidden achievement triggered by taking Milluki Zoldyck’s mechanical cockroach opens the quest chain Ella’s Suffering Holy Infant. Bai Zhu links the achievement to the Creation Society, its suspicious pregnant visitors, and the Zoldycks’ investigation of the organization 1 2.

Although he initially plans to leave Sankara Town and take the Hunter Exam to see the wider world, the mystery surrounding Ella and the church draws him into a long conflict with the Creation Society 2.

After the Sankara operation, Bai Zhu passes the Hunter Exam and becomes increasingly involved with the Hunter Association, expeditions connected to Ring Island and the Black Tower, Kakin royal affairs, the Chimera Ruins, and recurring Creation Society activity 59 170 174 347.

His discoveries establish that his System, Soul King’s Pen, and unusual Reiatsu are tied to an older inheritance left by Zhang Ye, a prior transmigrator who created or maintained a continent-wide network sealing catastrophic entities 228 229.

Nanika later describes the presence inside Bai Zhu as a “bird” and distinguishes it from her own kind of power, calling its power the opposite of hers. This leads Bai Zhu to suspect that the System may originate from the Dark Continent rather than exist solely as a gift to transmigrators; that origin remains a hypothesis rather than a confirmed fact 324.

Personality

Bai Zhu is survival-conscious, opportunistic, and intensely motivated by system rewards. He routinely weighs risks against possible Achievement Points, but he is not passive: when he sees a useful opening, he manipulates people, bluffs authority, or provokes enemies into exposing themselves 1 6 15.

He uses shameless humor as both entertainment and strategy. His insults toward Milluki, inappropriate remarks toward Illumi, dramatic attack names, and insistence on theatrical “protagonist” moments often destabilize opponents or conceal his own fear 3 18 49.

Beneath his self-preserving attitude, Bai Zhu repeatedly chooses to protect vulnerable people. He shields Ella from Pige Aaron, intercepts the bishop’s attack meant for her, risks himself to save Number Nineteen, and refuses to abandon Ella even while exhausted and outmatched 8 24 30 46.

His concern does not make him conventionally gentle. Bai Zhu can be casually cruel to enemies, such as gagging Pige Aaron with his own socks after restraining him, and he often treats deception as a game 9 10.

Bai Zhu is deeply suspicious of institutions, inherited obligations, and anyone who attempts to treat him as a disposable tool. He rejects responsibility for Zhang Ye’s crimes merely because he inherited part of the predecessor’s legacy, and he refuses missions that demand blind self-sacrifice 296 319.

Despite claiming that he does not like adventure, he has grown more willing to act decisively. Netero’s criticism of his overthinking leads Bai Zhu to recognize that caution can become paralysis and that he needs better physical skill, reactions, and contingency options 249.

He defines friendship through honesty, companionship, voluntary assistance, and respect for personal freedom. When Nanika’s recollections begin causing her pain, he stops questioning her rather than force her to satisfy his curiosity, demonstrating the ethical boundaries behind his refusal to experiment on Alluka 318 324.

Bai Zhu explicitly despises human experimentation. Confronting a Creation Society researcher, he explains that seeing people treated as materials recalls unpleasant memories from his original world, and he rejects the researcher’s attempt to bargain for survival with organizational secrets 353.

His self-control can be compromised by outside influence. Gao Mao’s spores suppress pain and fuel an increasingly euphoric fixation on attacking Big Dog, causing Bai Zhu to ignore retreat until the temporary condition collapses 373 374.

Abilities & Skills

Achievement System

Bai Zhu’s system issues regional and hidden achievements, tracks his Reiatsu and Achievement Points, and grants rewards including Kidō draws, Body Enhancement, and Bankai trials.

• The Ella’s Suffering Holy Infant chain directly drives his involvement with the Creation Society and imposes severe failure conditions when Ella is endangered 18 29.
• He can spend Achievement Points on Kidō draws and physical enhancement 24 43.
• The system stores his Zanpakutō when it is dismissed 32.
• Its Forced Zetsu effect prevents him from releasing ordinary Nen aura, making his combat presence unreadable to Nen users 1 9.
• Later system draws grant Ryūjin Jakka, Hōzukimaru, Raikōhō, Special Bakudō #96, and other techniques that expand his repertoire beyond his original Kidō set 68 109 133.
• The system can temporarily provide extraordinary attributes and Reiatsu during specific trials or missions, but such power may disappear immediately once the relevant condition ends 49 55 104 308.
• Its behavior becomes increasingly suspicious after contamination incidents, foreign-rule interference, and the Black Tower assessment. An ancient gravekeeper warns Bai Zhu not to analyze the System’s underlying code 104 227.
• The System can isolate foreign rules and convert certain hostile intrusions into progress for Kidō Analysis, allowing Bai Zhu to study Reiatsu pathways and derive more efficient spell use 293 297.
• At 30% Kidō Analysis, it unlocks low-tier spell deduction authority, breaks known techniques into detailed energy-flow nodes, and supplies routes for additional spells Bai Zhu has not obtained through draws 293.
• Hecatos’s mental intrusion can be isolated and reclaimed as usable Reiatsu while improving external-energy conversion efficiency 304.
• Nanika can perceive its bird-like presence inside Bai Zhu, although she states that it is not the same kind of being as herself. She recalls seeing something similar accompanying another person in a distant place, but cannot pursue that memory without severe distress 324.
• Gao Mao’s mycelium affects both Bai Zhu and his System. During the Big Dog battle, the interface malfunctions as a white one-eyed owl appears in his vision and his spore-supported power fails 374.
• A perfect settlement of the D-04 operation rewards him for destroying the experimental subject, preventing the enemy data upload, sparing civilians, destroying the core facility, and securing S-class intelligence. It grants the third blade name Katen Kyōkotsu 423.

Reiatsu and Spiritual Pressure

Bai Zhu wields Reiatsu, an energy system distinct from conventional Nen. Its true nature is unknown to the Zoldycks because Bai Zhu falsely presents it as Nen transformed through an extreme restriction and vow 10 11.

• His spiritual pressure can halt and suppress weaker Nen attacks before they reach him 1 9.
• Pige Aaron’s full-strength punch stops inches from Bai Zhu after his Nen is neutralized by Bai Zhu’s pressure 9.
• Illumi cannot detect any conventional aura from Bai Zhu, even during combat, making him an abnormality within Nen’s usual rules 9.
• Reiatsu acts as the resource consumed by Kidō, Shunpo, healing, Zanpakutō techniques, and Bankai 25 36 48.
• His Reiatsu can reinforce his body to extraordinary levels, including enough force to open all seven Testing Gate doors at the Zoldyck estate 314.
• After the Black Tower “boot-up,” his Reiatsu becomes less abundant but qualitatively purer and more concentrated, resembling a refinement rather than a simple numerical increase 227 231.
• His spiritual energy can be severely disrupted or drained by specialized anti-Reiatsu fields, Black Gold sound patterns, and external suppression from vastly stronger opponents 151 319 359.
• Gao Mao’s spores temporarily reverse his energy depletion and cause his Reiatsu to rise rapidly. The boost is unstable and stops when the mycelium-supported state breaks down 373 374.
• His documented Reiatsu reaches 12,350 after the Financial Center mission settlement 423.

Kidō

Hadō #1: Shō

A forceful shockwave technique used to disrupt footing and move debris.

• Can blast snow, rubble, and enemies backward 19 21.
• Works well with terrain manipulation rather than direct killing power 19.
• Can be combined with Hainawa and environmental surfaces to alter an opponent’s movement, as demonstrated against Killua at the Testing Gate 315.
• With improved pathway analysis, Bai Zhu can ration its output into very small bursts that move him only far enough to avoid a vital strike, conserving his remaining Reiatsu during the Hecatos battle 293 300.

Hadō #4: Byakurai

A lightning-based technique also called White Lightning.

• Can intercept or weaken incoming Nen attacks 19.
• Paralyzes the silver-robed bishop’s arm and allows Bai Zhu to seize his staff 19.
• Deflects Black Crystal weapons and shatters a Holy Knight leader’s chest crystal 40.
• Its repeated use is limited by Bai Zhu’s Reiatsu reserves 39.
• Can precisely disable mechanical restraints, weapons, and capture equipment without destroying nearby vehicles or allies 181.
• Bai Zhu uses it against hostile vegetation, Black Gold constructs, and regenerative enemies, although repeated use can allow adaptive opponents to learn its Reiatsu pathway 109 278.

Bakudō #4: Hainawa

A tracking yellow-light restraint that binds targets and can seal Nen.

• Restrains Pige Aaron and prevents him from using Nen; resistance tightens the binding 9.
• Can be applied to objects and terrain, allowing Bai Zhu to pull debris or collapse obstacles onto enemies 19 20.
• Used nonlethally to restrain controlled believers and ritualized children 49 50.
• The bishop is capable of evading it, showing that the technique is not unavoidable against stronger opponents 18.
• Bai Zhu can create layered rope traps, redirect opponents, and use the ropes as mobility anchors or rescue lines 215 315.
• He later uses Hainawa to manipulate enemy positioning and force the ancient “fellow countryman” toward the unstable Star Tracks 226.

Kaidō No. 33: Angel’s Gaze

A healing Kidō technique.

• Rapidly heals Bai Zhu’s physical injuries and suppresses severe pain 30 36.
• Does not restore Reiatsu depleted by powerful techniques such as Sōkatsui 30.
• Its use consumes recovered Reiatsu, forcing Bai Zhu to choose between healing and offensive capability 36.
• Can heal serious external injuries and, at higher output, restore damaged flesh and bone while expelling corrosive foreign Nen from a target’s body 304.
• Hecatos’s attempt to imitate the technique fails because its power system is incompatible: the copied healing instead expels the Nen sustaining its damaged wing 304.

Hadō #12: Fushibi

A sensory and restraint-oriented Kidō that spreads Bai Zhu’s Reiatsu through nearby structures.

• By planting interwoven Reiatsu lines through terrain, tracks, pillars, and walls, Bai Zhu can map vibrations, movement, water flow, and enemy positions over a broad area 357.
• He uses its light-rope network for ambushes and pursuit control against Illumi, though Illumi can exploit his own pre-positioned needles to navigate its gaps 316.

Hadō #33: Sōkatsui

A powerful blue-flame Kidō obtained during the Creation Society battle.

• Requires hand seals, a full incantation, precise Reiatsu compression, and charging time on its first use 25.
• Vaporizes the bishop’s Nen attack, kills four deacons, and destroys a Black Crystal Fragment 25.
• Its remaining force tears a massive hole through the church wall 25.
• Nearly drains Bai Zhu dry, leaving him unable to stand without his Zanpakutō for support 25 26.
• Bai Zhu later uses Sōkatsui to disrupt Black Tower Star Tracks, exposing an ancient opponent’s incompatibility with the tower’s system 226.

Hadō #63: Raikōhō

A powerful mid-range lightning spell drawn in Meteor City.

• Raikōhō provides Bai Zhu with a stronger lightning option than Byakurai and suits his preference for quickly controlling a fight before using high-damage follow-up attacks 133.
• It can destroy exposed Black Gold cores and blast regenerating Holy Knights through reinforced structures 139.
• Its output carries a noticeable physical cost, particularly when Bai Zhu is already injured or low on Reiatsu 139 278.

Bakudō #81: Dankū

A high-level defensive barrier.

• Bai Zhu uses Dankū to protect Unma and the cultivation-tank transfer system from Slender Hound’s attacks 278.
• The barrier can be overwhelmed by prolonged pressure or when Bai Zhu lacks sufficient Reiatsu to maintain it 278.
• During the D-04 crisis, simultaneous pressure from the escaping flesh tide and Scavenger’s attack causes the barrier to develop spreading fractures 421.

Bakudō #96: Ittō Kasō / Capital Fire Rack Annihilation

A chantless high-level restraint technique acquired through a targeted Advanced Kidō draw.

• The technique creates Reiatsu fire racks, burning pillars, and chains that can temporarily seal a target’s movement, energy flow, and local space 109 226.
• It requires Bai Zhu to plant Reiatsu on the target in advance and is strongly dependent on his total Reiatsu and control 109.
• His minimum-output use can still restrain powerful targets long enough to alter the course of a fight, though it fails against opponents whose Reiatsu vastly exceeds his own 226 227.
• Bai Zhu later uses Ittō Kasō to seal the severed pope’s head after it attempts to parasitize or self-destruct against him 359.

Zanpakutō

Bai Zhu carries a Zanpakutō that initially appears to outsiders as an ordinary sword.

• He can channel Reiatsu through it for heavy strikes, including the public “Nozarashi” attack 18.
• He uses its blade, hilt, scabbard, and flat for close-quarters defense when conserving Reiatsu 25 44 49.
• The weapon can vanish into system storage, leaving Bai Zhu without its support when he is physically weakened 32.
• He can make the blade disappear by lowering its tip, using the effect as a distraction against the woman in white 45.
• Bai Zhu later awakens the name Ryūjin Jakka, giving the formerly plain weapon fire-based Shikai capabilities that increase with his physical conditioning 68 79.
• His second name draw produces Hōzukimaru, which can shift between a flexible three-section staff and spear form while retaining Ryūjin Jakka’s flames 133.
• Hōzukimaru’s adaptable forms improve Bai Zhu’s close-quarters fighting in cramped spaces and allow him to fight enemies whose defenses redirect his long-range Kidō 139 151.
• When released with Ryūjin Jakka’s power, Hōzukimaru can reshape into a flaming Guan Dao with a broad, heavy blade 353.
• His third name, Katen Kyōkotsu, changes the blade’s appearance but remains sealed until he obtains the necessary understanding to awaken it 423.

Shikai: Ryūjin Jakka

Ryūjin Jakka is Bai Zhu’s fire-type Zanpakutō, whose awakened name is associated with overwhelming heat and destructive flame.

• Bai Zhu’s release command is “All Things in the Universe, reduce to ashes” 353.
• Early releases create only limited flames because Bai Zhu’s body and Reiatsu reserves cannot yet support the sword’s full output 68 79.
• As his Strength and Stamina rise, he can produce sustained flames, shape the weapon into a Guan Dao, and use concentrated heat in direct combat 95 353.
• Ryūjin Jakka’s flames can burn fungal growth, Black Feather material, and other biological constructs that regenerate from conventional damage 353.
• Its power is dangerous to allies, structures, and Bai Zhu himself if he releases excessive heat without sufficient bodily reinforcement 104 105.
• Bai Zhu develops precise fireline control, allowing him to sever Nen Threads, disable explosive mechanisms, destroy enemy equipment, and evaporate obscuring fog while avoiding the Underground Palace’s main supports 206.
• When pushed during the Black Tower assessment, its flames intensify toward nearly white heat described as erasure, though Bai Zhu is still overwhelmed by the ancient figure’s attack 225.

Bankai: Minazuki

Minazuki is Bai Zhu’s first documented Bankai, acquired through a temporary random trial.

• Activation lasts only ten minutes and temporarily supplies the minimum physical attributes and Reiatsu needed to use it 49.
• Bai Zhu cuts his palm to release a vast blood pool across the church square, streets, drains, underground circuits, and Black Crystal formations 50.
• The blood corrodes Black Crystal defenses, melts through Holy Knight armor, restrains enemies with blood tendrils, and shields Number Nineteen 50.
• It corrodes and breaks the saintess’s combined Black Crystal Spear 50.
• Bai Zhu claims it is his first use of Minazuki, despite displaying unusually fine control over its range 50.
• Its power completely heals his wounds after the underground sanctuary is destroyed 54.
• The Bankai disappears at the conclusion of the trial, instantly removing its blood pool and leaving Bai Zhu exhausted and unable to stand properly 55.

Bankai: Ryūmon Hōzukimaru

Ryūmon Hōzukimaru is Bai Zhu’s Half-Damaged Bankai, released through his second Zanpakutō name.

• The Bankai transforms Hōzukimaru into a massive three-segmented weapon whose destructive power rises as it charges 151 152.
• It exchanges blade durability for extreme sharpness. Once its durability reaches zero, it enters a recovery period 152.
• While active, it can raise Bai Zhu’s four attributes by up to double and helps suppress delayed damage to his body 152 279.
• Its enhancement can stack with the Silver-White Tail Feather’s boost, increasing both physical attributes and Reiatsu during the underwater-port battle 152.
• The Bankai is especially effective against enemies that rely on ranged suppression or attempt to counter Bai Zhu’s Kidō, because it turns him into an overwhelming close-range combatant 152.
• Its dragon markings spread from the weapon onto Bai Zhu’s body, boosting his capacity to use heavier Reiatsu output and stabilize injuries during combat 279.
• Bai Zhu later learns that Ryūmon Hōzukimaru can work in concert with Ryūjin Jakka rather than conflicting with it 279.
• Against Big Dog, its massive weapon form merges into Bai Zhu’s back and manifests a coiling-dragon Shihakushō before he completes the dual-blade state 373.

Bankai: Zanka no Tachi

Zanka no Tachi is the Bankai of Ryūjin Jakka, initially accessible only through temporary System support or enormous external Reiatsu.

• Bai Zhu first accesses it with a temporary 300,000-Reiatsu mission reward while fighting the Unicorn Giant Whale 104 105.
• East — Rising Sun Blade / Kyokujitsujin concentrates the Bankai’s heat along the blade, allowing Bai Zhu to split the sea and incinerate parasitic swarms with a single slash 105 421.
• North — Tenchi Kaijin cuts through defenses with concentrated heat and is used to sever the Sea Lord’s Black Gold Horn 105.
• West — Zanjitsu Gokui surrounds Bai Zhu with an invisible destructive heat that burns approaching attacks and bodies away before contact 305.
• South — Kaka Jūmanokushi Daisōjin summons preserved traces of the dead as a skeleton army. The remains are not living souls, but reenact final actions retained in the seals 305.
• Its heat can be compressed so completely that surrounding water and even nearby Nen constructs collapse or vanish without conventional flame spread 304.
• Sustained use places an extreme burden on Bai Zhu’s Reiatsu and body, requiring Ryūmon Hōzukimaru’s reinforcement or external energy to remain viable 104 280 304.
• During the Big Dog battle, Bai Zhu drives the charred blade into the ground to deploy a Dead Realm and burning skeleton formation. Gao Mao’s red mist reduces its effective range to only a few meters, and Big Dog’s mist can invade and consume it 373.
• Against D-04, East’s invisible blade vaporizes the flesh tide, Scavenger’s defenses, the Main Box, and the hidden Experimental Subject Core. The subject’s destruction nevertheless triggers an emergency process that extracts its post-mortem Nen, leaving the broader threat unresolved 421.

Dual-Blade Style

Bai Zhu can combine Ryūmon Hōzukimaru’s bodily reinforcement with Zanka no Tachi’s contained heat, producing a two-blade combat state with a dragon-patterned Shihakushō.

• During the Slender Hound battle, his unstable dual release manifests two Tang blades and a protective Soul Reaper robe, which stabilizes his collapsing body at the cost of rapidly draining his Reiatsu 279 280.
• His improvised “East” strike forms an invisible straight line of compressed heat that destroys Slender Hound’s core and cuts through Totorro Port, the Caspian Sea, and into distant airspace 280.
• In the Chimera Ruins, Dual Blade Style: Blissful Repose severs Hecatos’s connection to the forty-eight main locks 307.
• Ashes Between Heaven and Earth follows Hecatos’s scattered particle paths and destroys its mirrors, shadows, water attacks, and golden crows from within 307.
• The stable combination demonstrates that Ryūmon Hōzukimaru reinforces Bai Zhu’s body and Reiatsu capacity while Zanka no Tachi compresses and contains the resulting destructive heat 307.
• Against Big Dog, the left hand holds Zanka no Tachi as a charred broken blade, while the right holds a slender Tang sword bearing Ryūmon Hōzukimaru’s dragon markings 373.

Third Zanpakutō Name: Katen Kyōkotsu

Katen Kyōkotsu is Bai Zhu’s third Zanpakutō name, awarded after the perfect completion of the Financial Center mission. Its acquisition alters the sword’s appearance, but does not immediately grant an usable release 423.

• The name remains sealed because Bai Zhu lacks the understanding required to awaken it 423.
• The System warns that attempting to use it prematurely could be dangerous 423.
• The awakening requirement concerns a deeper understanding of naming and creation rather than physical strength alone 423.
• The Soul King’s Pen is indicated as a possible key and faintly resonates while Bai Zhu considers the unresolved awakening conditions 423.

Shunpo and Enhanced Physical Ability

Bai Zhu uses short bursts of high-speed movement to evade attacks, reposition, and close distance.

• After Body Enhancement, his increased Agility improves his reflexes, sudden stops, Shunpo, and ability to evade homing Black Crystal Needle Tubes 43 48.
• Increased Stamina stabilizes his Reiatsu circulation and lets him recover energy during close combat at a much faster rate 44 48.
• Increased Strength allows him to withstand denser Reiatsu output and compress techniques more effectively 48.
• He remains vulnerable to attacks that drain Reiatsu directly, including the woman in white’s Needle Tubes 45 48.
• Repeated enhancement eventually gives Bai Zhu enough raw speed and strength to overwhelm trained royal guards, cross dangerous terrain at high speed, and open the Zoldyck Testing Gate through Reiatsu reinforcement 242 314.
• Netero identifies Bai Zhu’s unpolished physical technique, reaction speed, and overreliance on decisive first strikes as weaknesses that require further training 249.
• Bai Zhu can adapt his sword targeting during combat, as shown when he shifts from attacking Big Dog’s phantom head to severing the red-mist threads sustaining its eyes and body parts 374.

Reishi Manipulation

Bai Zhu can manipulate high-density Reishi into temporary physical structures.

• He creates a broad, crystal-like Reishi road across a contaminated lake, allowing himself and his allies to walk over the water toward the Black Tower 215.
• The technique demonstrates a spiritual-energy application that Nen users such as Milluki cannot easily classify within their own system 215.
• Bai Zhu can use Hainawa to drag stranded allies onto Reishi structures without needing to physically return for them 215.

Temporary Spore Berserker State

Gao Mao’s mushroom spores induce a temporary altered state during Bai Zhu’s battle with Big Dog. This is externally supplied support rather than a permanent innate ability 373 374.

• Inhaled spores initially disorient him and multiply the enemy’s image in his vision, but then cause his Reiatsu to rise instead of continuing to drain 373.
• Mycelium pulls torn muscles together, closes wounds, and restores displaced or broken bones while suppressing pain 374.
• Gao Mao’s influence removes Bai Zhu’s inclination to retreat, while repeated attacks and apparent regeneration produce escalating exhilaration 374.
• A white one-eyed owl appears in Bai Zhu’s vision immediately before the mycelium tightens, the System malfunctions, and Reiatsu growth stops. The exact cause of that intervention is not established 374.
• Bai Zhu expels spores by vomiting and sneezing; the mycelium releases its support, wounds and broken bones reopen, and accumulated pain leaves him unable to continue fighting 374.

Deception and Infiltration

Bai Zhu is an effective improviser who often prefers social manipulation to direct combat.

• He poses as a helpless stranded traveler to enter Pige Aaron’s farmhouse and lower Aaron’s guard 6 7.
• He infiltrates the Creation Society church by incapacitating a believer, stealing his robes, inventing “District Thirty-Seven,” and exploiting the cult’s hierarchy 15.
• He uses false doctrine, religious mockery, and targeted provocation to destabilize Pige Aaron emotionally 8.
• His fabricated explanation of Reiatsu and Kidō successfully persuades Illumi that his abilities are an altered form of Nen 10.
• He later uses an appearance of greed, cowardice, and social incompetence to make Kakin royalty underestimate his intentions during negotiations 242 261.
• His refusal to let Pakunoda touch him during the Phantom Troupe’s test protects his memories of transmigration, the System, and his unexplained powers 144.
• During the NGL investigation, he uses a crowd disturbance to steal a packet of D1 from a distribution table and slip away from suspicious mercenaries 340.
• After escaping the Financial Center, he presents himself to Piyu as an ordinary civilian forced to guide Milluki and Camilla. Their corroboration and his lack of detectable Nen allow him to leave through the civilian evacuation passage despite Piyu’s suspicion 423.
• He decrypts an Anvil contact directory and identifies leads involving Unma, a V5 contact codenamed “Court,” and a Dark Continent guide organization 423.

Equipment / Weapons / Items

• Zanpakutō — Bai Zhu’s primary weapon and the focus for his Reiatsu attacks, Shikai, and Bankai 18 50. It later receives the sealed third name Katen Kyōkotsu 423.
• Earpiece / Communicator — Maintains constant contact with Milluki during infiltration, chases, and combat operations 15 36.
• Exploding Beetles — Six Black-Shelled Rhinoceros Beetles supplied by Milluki; designed to kill or cripple Nen users, but each carries a fifty-percent malfunction risk due to its Nen restriction 35 37.
• Smoke-Blast Bug — A Milluki-made disruption device used to obscure a Holy Knight’s advance; it is not intended as a lethal weapon 37.
• Random Bankai Trial Ticket — System item used to draw Minazuki during the final rescue operation 45 49.
• Soul King’s Pen — A silver-white feather associated with Ichimonji. It doubles Bai Zhu’s Reiatsu limit while held, translates ancient records when used with compatible signs, and is gradually repaired through recovered components 127 223 229. It is later suggested as a key to awakening Katen Kyōkotsu and faintly resonates with the unresolved awakening notification 423.
• Silver-White Tail Feather — A feather-like accessory linked to the One-Eyed Owl and ancient ruins. It reacts to related emblems, guides Bai Zhu toward hidden systems, and assists his access to Black Tower authority 174 223. Its boost can stack with Ryūmon Hōzukimaru 152.
• Blue Crystal Necklace — A visible identification crystal set into a gold chain by Milluki. It functions as a permit recognized by monsters and ancient Black Tower systems, later revealing hidden routes and the Landlord’s Collection Room 193 206 223.
• Black Gold Horn Fragment — A fragment taken from the Unicorn Giant Whale after Bai Zhu shatters its horn. It is identified as a rare material capable of safely passing through Dark Continent waters 105.
• Milluki’s Modified Vehicle — A shockproof, bulletproof vehicle with a refrigerator, false license plates, concealed equipment, and advanced communications, supplied by Milluki for Bai Zhu’s field work 170.
• Restrained Pope’s Head — The surviving conscious head of the Holy Seat Proxy, bound with Bakudō and sealed with Ittō Kasō. Bai Zhu keeps it as a living guide to the Black Gate 359.
• Pariston’s Videotape and Memory Card — Recovered from a trapped compartment in Pariston’s safe house after Morel disarms its explosives. The tape contains footage of Bai Zhu’s battle in the Chimera Ruins; Bai Zhu initially keeps the memory card unopened because the group distrusts Pariston’s gifts 313.
• Anvil Contact Directory — Encrypted intelligence Bai Zhu examines after the Financial Center operation, revealing links to Unma, the V5 contact “Court,” and a prospective Dark Continent guide organization 423.

Relationships

• Milluki Zoldyck — Temporary partner, remote handler, supplier, and frequent target of Bai Zhu’s teasing. Their relationship begins antagonistically but develops into functional trust and mutual respect during the Creation Society operation 3 15 39 46. Milluki later becomes Bai Zhu’s regular technical support, vehicle supplier, battlefield analyst, and reluctant “brother,” although both continually dispute payment, property damage, and debts 105 170 314. Bai Zhu protects him from Pariston’s bait, accepts his invitation to the Zoldyck estate, and openly credits his loyalty and usefulness during the family dinner 313 326. Milluki’s use of Illumi’s satellite backdoor is crucial to their escape from the Financial Center 423.
• Illumi Zoldyck — Uneasy ally and dangerous counterpart. Bai Zhu manipulates Illumi into cooperating, conceals the truth of his powers from him, and repeatedly challenges Illumi’s detached calculations when Ella is at risk 3 10 30 49. Their familiarity grows through repeated operations, but Bai Zhu remains acutely aware that Illumi is dangerous and unpredictable 156 316. Illumi interrupts Bai Zhu’s conversation with Nanika and questions what he said; later, his inquiry about Milluki’s activities in the Basha Islands prompts Bai Zhu to advise Milluki to “Play dumb” 324 423.
• Ella / Number Fifteen / Camilla — Central figure in Bai Zhu’s achievement chain and a woman he repeatedly protects from the Creation Society’s ritual. Bai Zhu earns her trust after protecting her mother and later risks his life to prevent her sacrifice 18 24 29 30. After the Sankara rescue, Ella survives and shares an emotional farewell with Bai Zhu, but later becomes a target of the Creation Society’s renewed harbor operation 59 151. In Kakin, he confronts her as Camilla, whose hardened political persona conflicts with his memories of Ella. He refuses to provide the requested recording and leaves when her silence about Feng Xia deepens his suspicion of betrayal or concealment 244. They later cooperate during the D-04 crisis and escape together with Milluki, though Camilla resents Bai Zhu’s cover story portraying them as his captors 421 423.
• Number Nineteen / Feng Xia — Rescued prisoner and Ella’s associate. Bai Zhu frees her from the transport bus, protects her during the escape, and prioritizes her survival after the woman in white kills the other captives 44 46. She reveals her real name as Feng Xia before the survivors’ evacuation 58 59. Bai Zhu later invokes her name while confronting Camilla, exposing a break in Camilla’s composure without resolving Feng Xia’s fate 244.
• Aunt Hannah — Caring guardian figure in Sankara Town. Her local knowledge helps Bai Zhu identify Ella as likely connected to the Creation Society 2.
• Uncle Gelo — Hannah’s husband and a supportive father figure who encourages Bai Zhu’s ambition to take the Hunter Exam and see the world 2.
• Pige Aaron — Ella’s husband and a Creation Society fanatic. Bai Zhu infiltrates his home, provokes him into attacking, defeats him with Hainawa, and turns him over to Illumi for interrogation 6 8 9 10.
• Morel Mackernasey — An experienced Hunter who becomes a blunt mentor and operational ally. Morel repeatedly criticizes Bai Zhu’s recklessness and poor presentation, but recognizes his battlefield value and helps guide him through Association and Kakin operations 74 254 280.
• Ging Freecss — A manipulative but capable ally who repeatedly draws Bai Zhu into dangerous expeditions. Ging fights alongside him against Hecatos, protects him while he analyzes the seal, and later becomes one of the few people Bai Zhu trusts with discussions of ancient ruins and Zhang Ye’s legacy 174 301 307.
• Piyu — A Hunter Association companion, recorder, organizer, and frequent interrogator regarding Bai Zhu’s abilities. She helps manage his appearance and negotiations in Kakin, carries him from danger after his battle with Slender Hound, and provides analytical support during later operations 181 254 281. After NGL, she gives him a new communicator number and insists that he report Creation Society or Kakin activity rather than handle it alone 380. At the Financial Center cordon, she remains suspicious of his aura-less civilian disguise but permits him to leave while detaining Milluki and Camilla for questioning 423.
• Netero — Hunter Association chairman and harsh combat mentor. Netero identifies Bai Zhu’s technical weaknesses, challenges his fatalistic caution, and pushes him toward greater physical adaptability and personal agency 249.
• Killua Zoldyck — A combative younger acquaintance whom Bai Zhu meets at the Zoldyck estate. Their first sparring match becomes a dangerous contest of traps, analysis, humiliation, and mutual curiosity 315. Killua remains protective of Nanika and suspicious of Bai Zhu’s motives, but sees him stop questioning her when she suffers. He later actively seeks Bai Zhu’s company for the children’s group activities 324 326.
• Maha Zoldyck — The Zoldyck patriarch who evaluates Bai Zhu’s autonomy, suppresses the Red-Black Core, and asks him to meet Alluka. Bai Zhu is profoundly intimidated after Maha effortlessly suppresses his Reiatsu with killing intent 318 319.
• Alluka Zoldyck — A Zoldyck child whose external power parallels Bai Zhu’s System in Maha’s eyes. Bai Zhu agrees only to meet Alluka voluntarily and refuses to become an experiment or controller for the child’s power 318. After their meeting, Alluka calls him “Boss” and enthusiastically seeks to participate in the group’s activities 326.
• Nanika — Alluka’s other state and a new friend who perceives the bird-like presence inside Bai Zhu. He treats her as an equal, explains friendship without coercion or obligatory sacrifice, and stops his questions when recalling a similar presence causes her pain 324.
• Silva and Kikyo Zoldyck — Milluki’s parents, who receive Bai Zhu at a formal family dinner. Silva awkwardly discusses ruins and offers him water when he chokes; Kikyo questions his relationship with Milluki and arranges for the desserts he likes to be sent to Milluki’s room. Their hospitality makes Bai Zhu feel as though he is being welcomed into the family, without establishing any formal familial or romantic relationship 326.
• Hisoka — A provocative acquaintance fascinated by Bai Zhu’s growing power. Bai Zhu is wary of his interest but assigns him support duties during the underwater-port operation 146 151. During the D-04 crisis, Hisoka risks his life to disable Scavenger and buy Bai Zhu the opening needed for his decisive Bankai strike. Bai Zhu subsequently returns to the safe house where the gravely injured Hisoka is being treated by a healer sent at Machi’s request 421 423.
• Hecatos — The Lord of Fear and a long-sealed Chimera-like entity used as a power source for Zhang Ye’s containment network. Bai Zhu rejects Hecatos’s attempt to shift Zhang Ye’s debts onto him, defeats it, and restores it as the restrained core of the seal rather than killing it 296 307 308.
• One-Eyed Owl / Silver-White Owl — A powerful guardian associated with Ring Island, the Soul King’s Pen, and the Black Tower. Bai Zhu treats it as a landlord or “godfather” to whom he owes rent, but its temporary sacrifice and disappearance affect him sincerely 127 228 308. A white one-eyed owl later appears in his vision immediately before his spore berserker state fails; the precise nature of this manifestation is unexplained 374.
• Unma — The First Princess Consort of Kakin and Bai Zhu’s transactional associate. Their relationship begins with her attempt to buy his blood, develops through contractual conflict, and becomes a tense cooperation when Bai Zhu protects her and her cultivation tanks from Slender Hound 242 279. The decrypted Anvil directory later identifies her as an A-rank partner, providing another lead into the network Bai Zhu is investigating 423.
• Pariston Hill — An indirect antagonist and manipulator who repeatedly uses Bai Zhu as part of broader schemes. After witnessing Bai Zhu defeat Hecatos, Pariston becomes cautious enough to hide rather than confront him directly 307 308. He leaves battle footage and a memory card in a trapped safe house and later supplies Zaiyilo with an assessment of Bai Zhu, helping direct him toward the Black Gate 313 347.
• Zaiyilo — NGL’s General, who seeks Bai Zhu’s help to disrupt his balance of power with the Creation Society and retrieve a glowing object beyond the Black Gate. Bai Zhu recognizes that the invitation is another attempt to use him, but the suspected Soul King’s Pen component gives him a personal reason to investigate 344 347.
• Gao Mao — An unorthodox battlefield ally against Big Dog. His fungi restrain the enemy, his analysis identifies the red-mist threads sustaining its form, and his spores temporarily replenish Bai Zhu’s Reiatsu. The same support invades Bai Zhu’s body, suppresses pain, and contributes to a dangerous berserker state 373 374.
• Knov — An Association ally involved in the NGL investigation. He places spatial entrances along the team’s approach route and is present during the Big Dog confrontation; Bai Zhu is ultimately extracted through a black spatial door when his spore-supported state collapses 346 374.

Story Role / Major Arcs

Sankara Town and the Zoldyck Alliance

Bai Zhu’s pursuit of the Creation Society achievement brings him into contact with Milluki and Illumi Zoldyck. After noticing that the church’s children possess unnaturally similar Nen, he leverages the discovery to force Illumi into a temporary alliance 1 3.

He follows the trail to Ella and Pige Aaron’s farmhouse, infiltrates it as a stranded traveler, provokes Aaron into combat, and defeats him almost instantly with Bakudō #4: Hainawa 6 8 9.

Creation Society Church Raid

With Milluki providing surveillance support and Illumi infiltrating in Ella’s identity, Bai Zhu enters the church disguised as a believer. He sabotages its infrastructure, fights the silver-robed bishop, and creates surface-level chaos to draw out the organization’s forces 15 18 19.

During the Holy Advent Ritual crisis, he protects Ella from the bishop, draws Hadō #33: Sōkatsui, and destroys a Black Crystal Fragment despite the severe drain on his Reiatsu 24 25. He later receives the third-stage achievement reward after the ritual is stopped or delayed 32.

Holy Knight Hunt and Prisoner Rescue

Still injured, Bai Zhu acts as bait to draw Holy Knights away from Milluki’s command center. He survives coordinated pursuit with Milluki’s dangerous Exploding Beetles and later fights alongside Milluki’s Mechanical Bee and Earthworm swarms 35 37 39 40.

After encountering the woman in white, Bai Zhu invests almost all of his remaining Achievement Points in Body Enhancement. He then attacks a prisoner convoy, frees Number Nineteen, and attempts to rescue the other pregnant captives 43 44.

The woman in white murders the remaining prisoners when they cannot be recovered. Bai Zhu suppresses his anger, carries Number Nineteen to safety, and escapes in Milluki’s modified vehicle 46.

Minazuki and the Final Church Assault

With Ella’s ritual nearing completion, Bai Zhu activates his Random Bankai Trial Ticket and draws Minazuki. The temporary power lets him break through Holy Knight formations without killing them and reach the church entrance before the ten-minute limit expires 49.

He releases Minazuki outside the church, dismantles Black Crystal defenses, restrains Holy Knights and ritualized children without killing them, and enters the church with Milluki to reach Ella and the trapped Illumi 50.

Afterward, Bai Zhu helps evacuate twenty-three pregnant women and thirty-one children, receives major System rewards, and begins traveling toward the Hunter Exam 54 59.

Before the evacuation, Number Nineteen reveals her name as Feng Xia. Milluki provides transport, temporary identities, medicine, and money for the survivors, while Bai Zhu personally oversees their departure and shares an emotional farewell with Ella 58 59.

Hunter Exam, Ryūjin Jakka, and the Sea Lord

While waiting at Kik Port, Bai Zhu farms minor achievements and invests the resulting points in physical enhancement rather than immediately risking his Zanpakutō-name draw 60.

His eventual draw is disrupted by contamination and a recurring oceanic message, but it awakens Ryūjin Jakka and creates a city-wide power anomaly 68.

During the Raging Sea, Whale Tide crisis, the System temporarily provides enough power for Bai Zhu to use Zanka no Tachi. He burns the sea, destroys the parasite swarm, shatters the Unicorn Giant Whale’s Black Gold Horn, and earns a targeted Advanced Kidō draw 104 105.

Ring Island, Meteor City, and the Black Tower

Separated from his companions in a hostile forest, Bai Zhu obtains Special Bakudō #96 and reunites with Milluki during a monster pursuit 109.

His exploration brings him into contact with the One-Eyed Owl, the Soul King’s Pen, the Blue Crystal, Meteor City, the Phantom Troupe, and the Black Tower’s ancient administrator systems 127 144 193 223.

At Meteor City’s underwater port, an enemy officer relies on records treating Bai Zhu as a ranged-technique specialist. Bai Zhu counters Black Gold soundwave suppression with Ryūmon Hōzukimaru, destroys waves of Modified Merfolk, and protects living children in containment pods, forcing the facility to awaken its “Mother” 151 152.

Inside the Black Tower, Bai Zhu discovers evidence of interdimensional interference, recognizes familiar hand seals and symbols from his original world, and becomes convinced that another “fellow countryman” may have influenced the ruins 223.

The Black Tower’s gravekeeper subjects him to an apparent assessment. Although Bai Zhu initially defeats an ancient figure by exploiting the Star Tracks, the gravekeeper reveals that the encounter was a test, forcibly refines Bai Zhu’s Reiatsu, and gives him Kidō Analysis 226 227.

Bai Zhu later discovers Zhang Ye’s diary and learns that the former transmigrator constructed a continent-wide containment network for conceptual Chimera calamities, leaving Bai Zhu an unwanted inheritance of responsibilities and sealed threats 228 229.

Kakin Royal and Slender Hound Incident

Bai Zhu enters Kakin with Ging, Morel, Piyu, and other allies. His rapidly enhanced physical ability allows him to defeat a royal guard with a flip-flop before negotiating a lucrative blood-sale arrangement with Unma 242.

He also meets Camilla, who requests a recording of Creation Society experimentation to support her escape from the Succession War. Bai Zhu refuses to accept the encounter as a genuine reunion with Ella, questions her about Feng Xia, and leaves without providing the recording when her answers fail to restore his trust 244.

As he investigates Kakin’s royal research projects, he is forced into formal intelligence work and begins using improved social presentation rather than relying solely on direct force 254 265.

When Slender Hound infiltrates the experimental zone and threatens Unma’s cultivation tanks, Bai Zhu uses Ryūmon Hōzukimaru and an untested dual-Bankai release to fight it 278 279.

He ultimately identifies the creature’s core and destroys it with the “East” blade, creating a massive slash through Totorro Port and the Caspian Sea before collapsing from total Reiatsu depletion 280.

Chimera Ruins and Hecatos Containment

Bai Zhu enters the ancient city beneath the Caspian Sea and confronts Hecatos, a fear-feeding entity Zhang Ye used as a living power source for the containment network 296.

Hecatos attempts to manipulate Bai Zhu into freeing it, but Bai Zhu turns the city’s sealing system against the creature. The battle escalates as Hecatos copies abilities from Bai Zhu, Ging, and other opponents while spreading contamination across the city 297 301.

With Ging defending him, Bai Zhu analyzes the forty-eight-lock seal. The silver-white owl then provides external maintainer authority and enough Reiatsu for Bai Zhu to activate both Ryūmon Hōzukimaru and Zanka no Tachi at full scale 303 304.

Bai Zhu defeats Hecatos using Zanka no Tachi’s South and West techniques before unleashing Dual Blade Style: Blissful Repose and Ashes Between Heaven and Earth. Rather than kill Hecatos and destabilize the network, he restores it as the seal’s restrained core power source 305 307.

After the operation, Bai Zhu follows leads to Pariston’s abandoned safe house. Morel disarms a concealed explosive trap, and Bai Zhu recovers a recording of his battle and an unopened memory card. With the harbor cleanup transferred to the Association and Kakin military, he accepts Milluki’s invitation to visit the Zoldyck family 313.

Zoldyck Estate Visit

Bai Zhu travels to Kukuroo Mountain with Milluki, intending to meet Killua. His Reiatsu-enhanced strength unexpectedly opens all seven Testing Gate doors, attracting Killua’s attention 314.

He spars with Killua using Hainawa traps and Shō, then receives a dangerous evaluation from Illumi and a private meeting with Maha 315 316.

Maha investigates whether Bai Zhu’s System controls him, introduces the possibility of Bai Zhu meeting Alluka, and requests that Bai Zhu look for a missing Zoldyck family member if he ever reaches the Dark Continent 318 319.

During his meeting with Nanika, Bai Zhu learns that she can see a bird-like presence inside him and that its power differs fundamentally from hers. He proposes friendship without coercion and stops asking about her distant memories when they cause pain. Alluka returns with a headache shortly before Illumi and the butlers enter and question him 324.

At the Zoldycks’ formal dinner, Bai Zhu praises Milluki’s contribution to their expeditions despite their usual teasing. Silva and Kikyo’s awkward hospitality makes him feel unexpectedly included, while Killua and Alluka subsequently draw him into the children’s group activities 326.

Black Gate and Holy Seat Proxy

Bai Zhu becomes involved in a renewed conflict in NGL between the Creation Society and Zaiyilo’s forces over the Black Gate and a Soul King’s Pen component believed to lie beyond it. Kakin supplies the operation with money, samples, and infrastructure, while Pariston’s recommendation helps bring Bai Zhu into Zaiyilo’s plans 347.

He enters the Creation Society’s raw-material zone, where the Heterogeneous Nen Field amplifies his Reiatsu consumption and the organization’s experiments again expose captive people to inhuman treatment 347 359.

After confronting the Holy Seat Proxy, Bai Zhu systematically destroys its fungal body and core while preserving the pope’s conscious head. He binds the head to his belt and intends to use it to locate and open the Black Gate 359.

Big Dog and the Spore Berserker Crisis

Facing Big Dog alongside Gao Mao, Bai Zhu activates Ryūmon Hōzukimaru and Zanka no Tachi, then deploys Kaka Jūmanokushi Daisōjin. The Dead Realm is restricted by red mist and rapidly exhausts his Reiatsu, while Big Dog’s phantom body and numerous eyes produce Spatial Blades that breach his defenses 373.

Gao Mao supports him with fungal roots and creatures, but also releases spores that enter Bai Zhu’s body. Their initial disorientation is followed by a sudden Reiatsu surge and mycelium-supported regeneration, allowing Bai Zhu to continue fighting through severe wounds without pain 373 374.

Following Gao Mao’s analysis, Bai Zhu targets the red-mist threads connecting Big Dog’s eyes and body parts instead of attacking its phantom head. Severing those supports makes corresponding parts disappear and disables associated Spatial Blades, temporarily forcing the enemy back 374.

The support becomes a liability as Bai Zhu grows intoxicated by combat and ignores retreat. A white one-eyed owl appears in his vision, the System malfunctions, and his Reiatsu stops increasing. When he expels the spores, his injuries reopen and leave him helpless; a black spatial door removes him just before Big Dog can devour him, leaving his flaming sword behind as the Dead Realm collapses 374.

After leaving NGL, Piyu gives Bai Zhu a new contact number and instructs him to report Creation Society and Kakin activity to the Association rather than confront it independently 380.

Anvil, D-04, and the Third Blade Name

During the Financial Center crisis, Bai Zhu faces the D-04 experiment as it breaks free of the Main Box’s control. A flesh tide blocks his forward escape while Scavenger attacks from behind, and his Dankū barrier begins to fail 421.

Hisoka overloads Scavenger’s energy pack with Nen and his own life energy, disabling it for three seconds at the cost of grave injury. Bai Zhu uses that opening to unleash Zanka no Tachi: East — Kyokujitsujin, destroying D-04’s flesh tide, Scavenger’s defenses, the Main Box, and the hidden Experimental Subject Core 421.

Although the System confirms D-04’s destruction, the damaged Main Box activates an emergency protocol and absorbs energy from the subject’s death. The Overseer reports the extraction of an S-class specimen’s post-mortem Nen, showing that the decisive strike does not settle every consequence of the experiment 421.

Milluki exploits Illumi’s satellite backdoor to temporarily halt the purge countdown, allowing Bai Zhu, Milluki, and Camilla to escape before the satellite destroys the Financial Center and underground core facility. Bai Zhu receives a perfect mission settlement, reaches 12,350 Reiatsu, and obtains Katen Kyōkotsu as his third Zanpakutō name, though it remains sealed 423.

At the evacuation cordon, Bai Zhu poses as an ordinary civilian coerced into guiding the other two. Piyu lets him leave despite her suspicions, and he returns to check on Hisoka’s treatment before examining Anvil’s encrypted contact directory. The directory connects the organization to Unma, “Court” within V5, and a Dark Continent guide organization. The Soul King’s Pen faintly resonates as Bai Zhu considers how to awaken Katen Kyōkotsu 423.

Notable Quotes

“I call it Reiatsu and Kidō.” 10

“Saving people!” 45

“Please enjoy my true ability.” 50

“From the moment this blade leaves its sheath, I am the strongest Hunter in a thousand years.” 131

“I have a blade, named East.” 280

“What does it have to do with me?” 296

“I simply hate human experimentation. Seeing you use people as materials reminds me of some not-so-pleasant memories from back home.” 353

“Play dumb.” 423

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