Can Yue

Biodata

Feature	Details
Name	Can Yue (残月)
Alias(es)	White-haired Swordsman; Trembling Noble Son 3 96
Species/Race	Transmigrator bound to the Sesshomaru template; a Great Yokai/Dog Demon in Sesshomaru's body 1 318
Gender	Male
Affiliation	Straw Hat Pirates 4
Occupation/Role	Pirate, swordsman, and the Straw Hats' combat trainer 23 47
Bounty	20,000,000 Berries upon the crew's initial bounty issue; the highest among Luffy, Zoro, and himself at the time 4 6
Status	Active 321
First Appearance	Chapter 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Sesshomaru Template acquired	1	Transmigrates to the Pirate World and gains Sesshomaru's talents, including keen smell, poison-infused demonic attacks, combat ability, and appearance.
Fusion increase — amount undisclosed	4	Receives system rewards after joining the Straw Hats and defeating Captain Morgan; learns that Boss defeats are needed to break integer fusion thresholds and unlock major rewards such as Haki.
48% Fusion	37	Daily roleplay raises him from 45% to 46%; rewards connected to his encounter with Hawk Eyes add 2%, alongside an enhanced Great War Spear and Spear-Staff Combat Style.
50% Fusion	76	Unlocks Demonization and improved control of Demonic Power; his previously concealed tail becomes visible.
Over 70% Fusion	230	Gains major increases to physique, overall power, and Haki, placing him among the Pirate World's strongest fighters.
80% Fusion	317	The system reports an 80% fusion rate shortly before entering sleep mode in the Demon Realm.
Over 80% Fusion	318	A memory surge accompanies his fusion surpassing 80%; Lady Moonlight restores his Demonic Power to full through a direct bloodline transfer.

Background / History

Two months before meeting Luffy and Zoro, Can Yue accidentally transmigrated to the Pirate World and became bound to a Template System. His drawn identity card was Sesshomaru, granting him the innate traits and power of the Great Yokai. He spent his early time in the new world casually eliminating troublesome minor pirates. 1

Can Yue initially accepted Luffy's invitation because traveling alongside the world's central figure would expose him to major events and Boss-level opponents needed for fusion growth. Despite this pragmatic motive, he gradually came to value Luffy and the rest of the Straw Hats as his own people. 4 97

The system later subjected him to a trial that immersed him in Sesshomaru's memories, including the conflict with Inuyasha, the obsession with Tessaiga, and Sesshomaru's loneliness. These experiences led Can Yue to question whether he was a transmigrator controlling Sesshomaru's body or a secondary personality created within it. 137 162

During a later stay in the Demon Realm, Lady Moonlight recognized him as Sesshomaru and restored his depleted Demonic Power. By sensing his memories, she learned of his experiences across worlds and accepted his decision to continue his journey. 318

Appearance

Can Yue is a strikingly handsome silver-haired swordsman whose appearance is repeatedly mistaken for an irresistible attraction rather than ordinary beauty. He normally wears white clothing and has waist-length silver hair; his concealed snow-white tail can resemble a long scarf. 1 61 76

• His Sesshomaru template carries an overwhelming attraction toward women, intensified by a system-related “first meeting” bug. 15 25
• He uses a black-and-white patterned half-mask to avoid unwanted attention. 25
• In Demonization, he becomes a slender white giant Dog Demon with a crescent moon marking on his forehead, standing roughly 70 meters at the shoulder and measuring 130 meters without the tail. 114
• While in Sesshomaru's Demon Realm body, he lacks a left arm and carries the life-giving Tenseiga. 139
• His body can manifest fangs, claws, red eyes, immense Demonic Aura, and a massive white tail. 113 114

Personality

Can Yue is cold, reserved, proud, and intensely self-reliant. He dislikes unnecessary attention, avoids emotional displays, and generally sees strength as the only reliable answer to unexpected threats. 222 249

Despite his aloofness, he has a firm sense of conduct. He allows opponents such as Buggy time to recover before fighting, rejects Buggy's degrading tactics against Momousagi, and lends her his cape so she can continue the battle with dignity. 11 63

As the Straw Hats grow closer to him, Can Yue becomes a demanding but attentive mentor. He creates individual training plans, pushes the crew through painful practice, and treats their long-term survival as his responsibility. 23 47

Sesshomaru's memories gradually make him more reflective and compassionate. His interactions with Tama, Yamato, Rin, and Inuyasha expose guilt over past control, missed relationships, and the lives of those he failed to protect. 263 264 267 321

Abilities & Skills

Sesshomaru Template and Demonic Physiology

Can Yue possesses the inherited traits of Sesshomaru, including immense Demonic Power, heightened senses, poison, and the physical strength of a Great Yokai. 1 318

• His sense of smell can track people and detect distant presences. 82 143
• He can imbue attacks with corrosive poison through Demonic Power. 1 149
• His Demonic Aura can pressure opponents, disrupt Devil Fruit-created limbs, and overwhelm weaker fighters. 34 145
• His body can resist or negate some rule-based Devil Fruit effects through superior Demonic Power. 145
• His demonic nature allows him to possess multiple seemingly incompatible abilities without being limited like an ordinary Devil Fruit user. 141

Demonization

At 50% fusion, Can Yue gains the ability to fully transform into a giant Dog Demon. 76 113

• His transformed body greatly increases his physical strength, durability, speed, and claw-based destructive power. 114
• He coats his claws with both Demonic Power and Haki, allowing him to tear apart Kake's Haki-armored earth giant. 114
• His immense form and aura can cause abnormal weather and terrify observers over a wide area. 159 161

Haki

Can Yue is proficient in the three major forms of Haki and teaches their fundamentals to the Straw Hat Pirates. 34 47 61

• Observation Haki — Predicts enemy attacks and enables him to evade Hawk Eyes' otherwise flawless offense. 34
• Armament Haki / Ryou — Reinforces his attacks and defenses; he can block Katakuri's powerful strike with one Ryou-coated finger. 11 234
• Conqueror's Haki — Releases a sinister mixture of kingly pressure, killing intent, and Demonic Aura that can incapacitate weaker opponents. 61 257
• Observation Kill — Suppresses an opponent's Observation Haki and prevents Katakuri from seeing the future. 234

Swordsmanship and Combat Techniques

Can Yue is an elite swordsman whose strikes carry concentrated Sword Pressure and Demonic Power. His combat style combines swordsmanship, claws, poison, Haki, and extreme speed. 3 34

• Azure Dragon Break — A signature high-output sword technique used against Buggy, Hawk Eyes, Kake, and Big Mom. 11 34 113 247
• Poison Flower Claw Meteor Shower — A rapid claw-based barrage that forces even Buggy to rely on Observation Haki to evade. 11
• Wind Scar — A Tessaiga technique powerful enough to threaten high-level opponents and used with Advanced Conqueror's Haki against Saint Mars. 230 311
• Meido Zangetsuha — A technique capable of absorbing attacks, though using it can allow an enemy to escape immediate defeat. 311
• Spear-Staff Combat Style — Granted through a system reward alongside an enhancement to the Great War Spear. 37

Mobility

Can Yue can move with extraordinary speed and fly.

• He uses Shunpo and Shunshin-style movement to evade attacks or disappear from an opponent's sight instantly. 19 149 226
• He can fly independently and transport others through the air, though physical contact makes him visibly uncomfortable. 35 222
• His Time Whip can restrain, retrieve, and reposition targets at range. 145 263 264

Tenseiga's Healing

Can Yue can use Tenseiga to perceive and remove harmful entities from a living body.

• He examines Whitebeard's condition through Tenseiga before treating him. 257
• He removes pathogenic imps from Whitebeard and restores the Yonko to peak health. 259

Equipment / Weapons / Items

• Demon God Slayer — His primary sword during the Pirate World journey; can be infused with Haki and Demonic Aura. 11 215
• Tessaiga — A sword used for techniques such as Wind Scar. 230
• Tenseiga — A life-giving blade used to perceive and remove pathogenic imps from Whitebeard. 257 259
• Time Whip — A whip-like weapon or technique used for restraint, retrieval, and combat. 145 264
• Great War Spear — Enhanced by a system reward. 37
• Black-and-white patterned half-mask — Worn to conceal his face and reduce the chaos caused by his allure. 25

Relationships

• Monkey D. Luffy — His captain, student, and closest crewmate. Can Yue initially joins for system progression but later considers Luffy and the crew his own people. 4 97
• Roronoa Zoro — A fellow swordsman who first spars with Can Yue in Shells Town; Can Yue later trains Zoro's Haki and steel-cutting. 3 47
• Shushu — His loyal pet and closest confidant. Shushu can hear Can Yue's thoughts, communicates telepathically with him, and is important enough that Can Yue invades Big Mom's territory to rescue it. 215 281
• Inuyasha — Sesshomaru's younger half-brother. Their relationship begins in hostility and discomfort but gradually develops into mutual concern. 143 163 321
• Rin — A young girl tied closely to Sesshomaru's memories. Can Yue protects her, allows her contact with human society, and reflects on the harm caused by overprotecting her. 164 264
• Lady Moonlight — His mother as Sesshomaru. She restores his Demonic Power, learns of his cross-world experiences, and supports his decision to continue onward. 318
• Cavendish — A coerced subordinate who grows to admire Can Yue. Can Yue helps him learn to cooperate with his second personality through feigned sleep. 230 263
• Charlotte Linlin / Big Mom — An enemy who captures and controls Shushu. Can Yue defeats her, then helps her soul ascend after acknowledging her strength and will. 215 247
• Edward Newgate / Whitebeard — A wary but respectful ally who entrusts Can Yue with restoring his health. 258 259

Story Role / Major Arcs

• East Blue formation — Spars with Zoro, accepts Luffy's invitation, and becomes one of the original Straw Hat Pirates. His first bounty reaches 20 million Berries. 3 4
• Orange Town and Loguetown — Protects civilians from Buggy's men, confronts Buggy with measured respect, and rejects Buggy's proposal to attack Shanks because the Straw Hats are “cleaner.” 6 11 54
• Straw Hat training period — Becomes the crew's central instructor, tailoring combat paths for Luffy, Zoro, Nami, Usopp, and Sanji while preparing them for stronger enemies. 47
• Demon Realm trial — Experiences Sesshomaru's memories, poses as Sesshomaru to force the Straw Hats' growth, and tests whether they can save him from Sesshomaru's influence. 137 145 148 159
• Whole Cake Island conflict — Leaves the crew to rescue Shushu, defeats Smoothie and overwhelms Katakuri, challenges Big Mom, and ultimately ends the Whole Cake Island conflict with Big Mom's death. 221 226 234 247
• Whitebeard encounter — Meets the Whitebeard Pirates amid tension, demonstrates overwhelming Conqueror's Haki, and heals Whitebeard ahead of the planned Marineford assault. 257 259
• Wano Country — Protects Tama, defeats Ulti and Page One, confronts Kaido's forces, and becomes increasingly affected by memories connected to Rin, Setsuna, and Towa. 263 264 267
• Sabaody Archipelago — Reunites with the Straw Hats, recognizes Bartolomeo as a subordinate, and brings Jewelry Bonney into contact with Kuma. 284 289 290
• Demon Realm return — Arrives severely injured, kills several lord-level ogres despite depleted power, and reunites with Lady Moonlight before continuing his mission. 317 318

Trivia

• Can Yue's template attraction is described by the system as Sesshomaru's hidden “maxed-out charm” attribute, worsened by a cross-world system bug. 15
• He finds unwanted physical contact deeply uncomfortable and reacts especially strongly to people touching his tail. 25 76
• Sesshomaru's ingrained habits influence him; after repeated memory exposure, Can Yue catches himself wanting to walk only in a straight line. 139
• Shushu is the only known being permitted to know Can Yue's unfiltered thoughts, though revealing them carelessly usually earns it a beating. 281