Sakurada Niji

Biodata

Power Progression

Background / History

Qin Hong is reborn as the son of Sakurada Yosuke and Sakurada Miyoko, retaining his previous-life memories and the ability to see supernatural creatures. His parents name him Niji in the hope that he will brighten the world like a rainbow. By eight, he has learned Japanese and begun investigating the creatures, particularly after finding one attached to his mother’s friend, Kuradama Michiko 2.

His first successful exorcism leads to years of physical training and experimentation with negative emotions. Initially considered strange and difficult to approach, he later becomes popular with his junior-high classmates through good academic performance, fighting ability, and protection of other students. He repeatedly beats local delinquents and gangsters until criminal elements disappear from the school’s surroundings 2 3.

A battle at a construction site awakens his cursed technique but leaves him hospitalized. Masamichi Yaga interviews him and offers him a place at Jujutsu High after hearing his commitment to protecting people and his lack of regret. Niji accepts, reveals his abilities to his parents, and persuades them to relocate to China because of the dangers he anticipates in Japan. Shoko Ieiri heals his injuries and accompanies him to the school 4 5 6.

Appearance

Niji has handsome features, gray eyes, and long gray hair reaching his chest; at fifteen, his appearance is described as somber rather than youthful 6.

• Usual hairstyle: Ties his hair into a high ponytail after leaving the hospital 6.
• Riko disguise: Dyes his hair and buys clothing before replacing Riko Amanai as Toji’s intended target 16 18.
• Prank outfits: His friends later dress him in Riko’s old clothes and other women’s clothing while he is unconscious 22 32.

Personality

Niji is protective, observant, and unusually mature from childhood. His desire to understand curses begins with concern that his parents may eventually become victims. He later accepts sorcery as a means to protect humanity, insisting that he does not regret intervening even when doing so nearly kills him 2 5 6.

His composed public manner conceals a mischievous and competitive streak. He convincingly blames Gojo for their damaged training ground, retaliates against teasing, and adopts Gojo-like theatrical behavior to unsettle Naoya. He also recognizes when he has gone too far, apologizing after needling Naoya during their duel 8 28 29 32.

He approaches technique development experimentally, studying weaknesses and combining abilities rather than relying solely on strength. That curiosity can become reckless: he deliberately tests a barrier against Blue, becomes distracted by newly invented severance lines during combat, and jokes about dissecting Gojo to research the Six Eyes 8 40 42.

His sense of responsibility frequently turns into self-blame. Foreknowledge gives him nightmares and anxiety over his friends’ possible deaths, while the station incident leaves him feeling that he should have saved the hostages more effectively. Gojo challenges his expectation that he should be able to do everything himself 12 37.

Niji’s compassion does not extend equally to people he considers evil. He eventually executes Yoshihide Hasaba’s murderer, reasoning that identifying a wicked person’s crimes and giving them a fitting death can still express respect for life. His apparent detachment afterward concerns Yaga 40 49 50.

Abilities & Skills

Cursed-Energy Perception and Control

Niji learns to draw energy from consciously controlled negative emotions before receiving formal instruction 3 5.

• Reinforcement: Strengthens his body for combat, although fatigue limits sustained use 3.
• Extension: Stretches energy outward while keeping it connected to his body, enabling ranged application of his technique 11.
• Diffusion and Technique Extension: Spreads energy around himself and applies fixation through it with virtually no delay, immobilizing multiple nearby enemies 16.
• Reserves versus efficiency: His total reserves eventually exceed Gojo’s, but he lacks the Six Eyes’ fine control and low-loss technique execution 40.

Fixing Cursed Technique

His innate technique fixes the space occupied by anything his cursed energy touches, preventing movement through that space 4 10.

• Immobilization: Can restrain bodies, individual joints, air, and objects 4 6 18.
• Damage postponement: Holds injuries back while fixation remains active; the accumulated damage manifests when the effect ends. He tests this on Rainbow Dragon and later uses it to keep fighting despite severe burns 11 35.
• Force storage: Fixes a limb or weapon while building force, then releases that force in a burst 16 28.
• Early limits: Unmaintained fixation lasts about ten seconds. Attacks destabilize it, and additional energy increases its strength and duration 10.
• Self-imposed binding vow: Temporarily gives up the ability to fix all kinds of things in exchange for targeting one specified kind. Both holding strength and duration rise to roughly 150 percent; revealing the technique provides a further boost 12.

Spatial Barriers and Lines

Niji shapes fixed air into walls, footholds, and thin lines for defense and battlefield control 7 8 11.

• Spatial Barrier: Blocks attacks and arrests movement, including Rainbow Dragon’s charge 11.
• Splitting Void: A sturdier barrier developed with an elaborate incantation. It resists Blue briefly, but continuous reinforcement drains nearly half his energy in under a minute 8.
• Space-Severing Lines: Partition terrain to disrupt high-speed movement and restrict Gojo’s teleportation routes 18 21.
• Framework: Projects a web-like structure that intercepts and detonates Jogo’s fireballs 35.
• Durability trade-off: Thin lines conserve energy but are easier to destroy; Nanami’s critical strikes break them during training 29.

Cursed Technique Reversal and Ranged Attacks

Reversal allows Niji to move and manipulate the space he has fixed 36 40.

• Spatial distortion: Twists Jogo’s occupied space to remove his head 36.
• Inorganic cutting: Holds one part of an object still while moving another, producing an exceptionally smooth cut 40.
• Constructed weapons: Creates crude spatial weapons, but maintaining them under repeated impacts is inefficient. Disposable spears and throwing knives are more practical 40.
• Spatial saw blade: Experiments with a rotating spatial edge applied to a real cursed tool 40.
• Energy arrow: Fires a connected projectile that lodges in a curse and can be detonated. Its low power makes it better suited to inexpensive harassment than decisive attacks 42.
• Movable Spatial Severance Lines: Extends, retracts, and replenishes finger-connected cutting lines. They are powerful but demand substantial concentration and practice 42.

Flash Step and Flash Walk

Niji develops movement techniques that exploit fixation, stored force, and spatial supports 16 28.

• Flash Step: Locks his legs, builds force through his feet, and releases it for a brief straight-line acceleration approaching teleportation 16.
• Physical limits: Early charges are limited to about five seconds before muscle damage becomes prohibitive. Repeated steps injure his legs, and his dynamic vision initially struggles to track agile targets at full speed 16.
• Flash Walk: Combines spatial footholds, briefly fixed limbs, stored momentum, and extreme flexibility developed with Shoko’s healing support 28.
• Applications: Enables sudden turns, backward movement, abrupt stops, confined-space maneuvers, and nearly immediate evasions and counterattacks 28.
• Energy cost: Repeated fixation makes Flash Walk expensive to sustain 30.

New Shadow Style and Swordsmanship

Niji studies basic New Shadow Style swordsmanship, quick-draw techniques, and Simple Domain during his first six months at school 12.

• Godspeed: Fixes his sword inside its sheath while accumulating drawing force, then releases it for an explosive slash. The force strains his arm and can pull him off balance 16.
• Simple Domain Guard: Defends against Jogo’s Coffin of the Iron Mountain 35.
• Simple Domain — Modified: Automatically charges Godspeed and releases it when an enemy enters range. With Skyward Support, its counterattack exceeds the speed of sound 28.
• Maximum Iaijutsu: Combines an expanded Simple Domain, brief target immobilization, Flash Step, Flash Walk, and Godspeed. Its demonstrated reach encompasses the surrounding ten meters 35.

Domain Expansion: Stillness of All Things

Stillness of All Things immobilizes everything inside except Niji, allowing him to control motion within its area 22.

• Prepared framework: His initial incomplete domain spreads through spatial cursed-energy threads laid down beforehand, filling the gaps between them 21 22.
• Demonstrated effect: Freezes Gojo, surrounding dust and leaves, and Gojo’s Red technique 22.
• Offensive potential: Can potentially accelerate controlled targets with devastating force 22.
• Early drawback: Its energy consumption causes Niji to lose consciousness before striking the immobilized Gojo 22.
• Later refinement: A more complete, less costly version destroys Ubusunagami 25 26.
• Hostage constraint: Hanami’s threats prevent him from deploying it during the station battle 35 37.

Reverse Cursed Technique and Medical Knowledge

Niji awakens Reverse Cursed Technique while severely burned and close to death 35.

• Self-healing: Slowly restores himself after the station battle, remaining conscious and refining energy despite exhaustion 36 37.
• Healing others: Initially can only stabilize a badly burned victim effectively; later treats the Hasaba sisters’ injuries and Komaiwa’s serious shoulder wound 37 46 47.
• Anatomical training: Shoko teaches him to identify damaged tissues and prioritize repairs, improving efficiency and recovery of fighting strength 40.
• Research interest: Preserves a dead curse user’s body for Shoko to examine, hoping it may reveal how cursed tools form 50.

Foreknowledge, Investigation, and Stealth

Niji remembers the original story from his previous life, giving him knowledge of major threats and possible future events 5 6 12.

• Planning: Uses that knowledge to prepare Riko’s rescue and warn his allies about Kenjaku’s interest in Geto’s body 18 21.
• Limits: Uncertain dates, imperfect memory, and changes caused by intervention make the expected timeline increasingly unreliable 12 26.
• Investigation: Reconstructs a likely betrayal from blood and cursed residue on the mountain behind the Hasaba sisters’ village 48.
• Stealth: Suppresses vital functions while remaining mobile and uses fixation to move silently. Cursed-energy perception can still reveal him; the passage identifies Toji as an exception capable of detecting him otherwise 48.

Equipment / Weapons / Items

• Utility knife — His early exorcism weapon. Uses it against Michiko’s attached curse and later drives it through the immobilized Grade 2 spirit’s eye and brain 2 4.
• Skyward Support — A self-named, sixty-centimeter straight sword with a matte-black blade and a black stingray-skin-wrapped hilt. Ignores most resistance when swung and does not slip from his hand while infused with cursed energy 12.
  • Costs 300 million yen after a discount through Gojo Clan connections; Niji borrows 200 million yen from Gojo and repays it over the following year 12 21.
  • Jogo’s heat ruins its hilt and sheath. Its resistance-reducing ability also stops working, requiring repairs through the Jujutsu Association 37 40.
• Inverted Spear of Heaven — Obtains the technique-nullifying weapon and brings it into his domain during his spar with Gojo. Gojo subsequently gives it to Yaga for safekeeping 19 22.
• Riko Amanai’s clothing — Uses her outfit for the decoy operation. Keeps it afterward out of embarrassment and buys her a replacement before she leaves 18 22.

Relationships

• Sakurada Yosuke and Sakurada Miyoko — Loving parents who support his decision to become a sorcerer while warning him against self-sacrifice. Relocate to China at his request 2 5 6.
• Kuradama Michiko — His mother’s best friend and a teacher who affectionately teases him. The curse attached to her becomes his first successful exorcism 2.
• Yoshioka Ryozo — Junior-high classmate who admires him and organizes his birthday celebration. Niji protects him during the construction-site battle and later reassures him that he is not to blame 3 4 5.
• Masamichi Yaga — Recruiter, teacher, and later principal. Supports Niji’s growth and rescue efforts while disciplining his destructive training and watching for changes in his behavior 5 10 19 50.
• Satoru Gojo — Close friend, technical adviser, and sparring rival. Their teasing and pranks coexist with serious trust; Gojo later confronts Niji’s guilt over the station victims 8 10 22 37.
• Suguru Geto — Close friend and mission partner. Niji helps ease the discomfort of consuming curses, shares his workload, and remains attentive to his anger and moral strain 11 40 41 48 49.
• Shoko Ieiri — Classmate, healer, medical mentor, and research partner. Supports his physically damaging training, teaches anatomy, and joins the others’ pranks 6 17 22 28 40.
• Riko Amanai and Kuroi — Protectees whose escape Niji helps arrange through the decoy operation and concealment plan 15 17 18 21.
• Toji Fushiguro — Initially an overwhelming opponent. Niji restrains him and negotiates a wager intended to recruit him against Kenjaku; Toji later escorts Riko and Kuroi overseas 18 21.
• Megumi and Tsumiki — Children Niji cares for daily; Gojo connects this commitment with his acquisition of the Inverted Spear of Heaven 22.
• Yu Haibara and Kento Nanami — Juniors he helps rescue and train. Tailors his guidance to Haibara’s blood-flow control and Nanami’s precision and reactions 25 29.
• Naoya Zenin — Goodwill Event opponent. After defeating him, Niji offers further sparring and instruction in the hope of improving his character 27 28 29.
• Nanako and Mimiko Hasaba — Rescued sisters whom he heals, comforts, and protects alongside Geto. Helps bring them to Jujutsu High after uncovering their father’s murder 46 47 50.
• Kenjaku — Principal anticipated enemy. Niji warns his allies about his plans and suspects his involvement in dangerous assignments and attacks, though those suspicions are not always confirmed 12 17 21 26.

Story Role / Major Arcs

Entering Jujutsu High

• Awakens his technique while protecting Ryozo, defeats a Grade 2 curse, and earns Yaga’s invitation to the school 4 5.
• Meets Gojo, Geto, and Shoko; early sparring exposes weaknesses in his close-combat fundamentals and energy efficiency 6 7 8 10.
• Helps capture Rainbow Dragon, establishing a coordinated combat partnership with Gojo and Geto 11.

Star Plasma Vessel Intervention

• Recognizes signs that the Hidden Inventory events are approaching and fears that his preparation will not be enough against Toji 12.
• Completes a suspicious solo hospital mission, then uses a disguise and false injury report to prepare covert intervention 15 16.
• Replaces Riko as the apparent assassination victim, fights beside Geto, and immobilizes Toji long enough to negotiate 17 18.
• Shares his foreknowledge with his allies. The group establishes a binding vow to keep it secret until Kenjaku is dead, while Riko, Kuroi, and Toji leave overseas 21.

Saving the Juniors and the Goodwill Event

• Joins Geto in pursuing Haibara and Nanami after their supposedly Grade 2 assignment raises suspicion 23.
• Rescues them from Ubusunagami and destroys it with his refined domain. Finding Sukuna’s Finger leads him to suspect deliberate strengthening of the curse 25 26.
• Defeats Kyoto’s students, including Naoya, then turns the event into targeted training for his juniors 27 28 29.
• Receives official Special Grade promotion and territorial exorcism duties 32.

Station Hostage Crisis

• Investigates a missing train at Maenocho Station and finds Konno Yoshiko hiding beneath the security-office desk 33 34.
• Encounters Jogo and Hanami, whose hostages prevent him from calling allies or opening his domain 35.
• Survives Jogo’s domain, awakens healing and reversal, and bargains for the captives’ release rather than spend his remaining energy killing Jogo 35 36.
• Keeps the burned victim alive until help arrives, but requires Gojo’s intervention against his resulting self-blame 37.

Hasaba Sisters’ Rescue

• Supports Nanako and Mimiko through the villagers’ confrontation and helps exorcise the curses possessing the community 46 47 48.
• Tracks, captures, and interrogates the curse user responsible for betraying their father 48 49.
• Executes the murderer and helps bring both sisters to Jujutsu High. Yaga notices that the mission has affected him despite his outward composure 50.

Notable Quotes

“Do you even need to ask? Destroy monsters and protect my fellow humans.” 5

“Finally, I felt anger toward the monster and frustration with myself... but the one thing... I never felt was regret!” 5

“For an evil man, enumerate his sins and grant him the death he deserves.” 50

Trivia

• His enthusiasm for recreating anime moves influences both Godspeed and Splitting Void’s elaborate incantation 8 16.
• Suffers from motion sickness and worries about the frequent car journeys required by his Special Grade duties 32 33.
• Likes shrimp and eel tempura, but envies Ryozo’s singing because he struggles to sing in tune himself 2 3.