Yun Xi

Biodata

Feature	Value
Name	Yun Xi (云玺)
Alias(es)	Brother Yun Xi / Big Brother Yun Xi
Gender	Male
Affiliation	Hidden — founder and leader; Konoha Ninja Academy — student 10 27
Occupation/Role	Shinobi; founder of the assassination organization Hidden 26 27
Status	Active 49
First Appearance	Chapter 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Below Genin → Genin	1, 3	A beginner gift package raises his chakra reserves to those of an average Genin; before obtaining the system, he had not reached Genin strength.
Genin / Peak Chunin with Curse Mark	2, 3	Receives the system-modified Heaven Curse Mark. His panel lists Genin strength, rising to peak Chunin while the mark is active.
One-Tomoe Sharingan	3	Purchases a single Sharingan for his left eye; completing the “First Purchase” task also upgrades Multi-Shadow Clone Technique to Initiated.
Chunin → Special Jonin / Kage-level peak output	7	After meeting the Third Hokage, gains a Mangekyo Sharingan and Fire Style knowledge. His panel rates him as Chunin normally, Special Jonin with the Curse Mark, and Kage-level with Mangekyo Sharingan and the mark combined.
Heaven Curse Mark: State Two	16	Activates State Two against Orochimaru. It provides more than twice the power of State One, but initially drains his stamina rapidly.
Strengthened Mangekyo and body	19	Mangekyo Sharingan Strengthening Serum removes blindness risk and increases ocular-technique power by 10%; Basic Body Strengthening Serum doubles his base physical constitution and allows safer use of Curse Mark State Two.
Four chakra natures and basic-ninjutsu mastery	26	Purchases four elemental training talents and mastery of basic ninjutsu, broadening his offensive options beyond Fire Style.
Established Kage-level combatant	36	Completing “Tragedy of the Uchiha” lets him activate Susanoo with one Mangekyo eye and doubles Amaterasu’s power through collected Sharingan rewards.

Background / History

Yun Xi was a war orphan in Konoha with limited resources and insufficient chakra to qualify as a Genin despite years of effort. His life changes when he obtains the Pay-to-Win System, which converts money into points for techniques, bloodlines, missions, and other enhancements. He resolves to prioritize earning money over conventional training, considering strength essential to survival. 1 3

His neighbor, Uncle Heiwa, gives him a scroll containing the Multi-Shadow Clone Technique and 100,000 yen. Yun Xi spends the entire amount through the system, receiving the Heaven Curse Mark; the initial implantation is agonizing enough to make the six-year-old collapse. 2

At the Ninja Academy, Yun Xi states that his greatest dream is simply to survive. His intervention on Naruto’s behalf draws the attention of the Third Hokage and Danzo’s Root Division, prompting Yun Xi to conceal his growing power behind basic taijutsu and a harmless public image. 5 7 10

After clashing with Sasuke and witnessing Itachi’s combat ability, Yun Xi leaves Konoha under cover of a Multi-Shadow Clone. He travels first to the Land of Whirlpools, where he rescues Karin from Grass shinobi and persuades her to become his first loyal subordinate. 11 12 14 19

Yun Xi then travels with Karin to the Land of Waves, defeats Gato’s forces, and recruits Zabuza Momochi and Haku after defeating Zabuza. With Gato dead and his funds seized, Yun Xi establishes Hidden, an organization intended to protect its members while operating initially from the Land of Waves. 20 22 24 27

Appearance

Yun Xi’s ordinary appearance is sparsely described. His most distinctive traits manifest when he uses the Heaven Curse Mark and Mangekyo Sharingan.

• A black, wing-shaped Heaven Curse Mark is located on the nape of his neck rather than the usual three-tomoe pattern. 3
• Activating Heaven Curse Mark: State One covers his fair skin in black runes and causes the winged mark around his neck and shoulders to open. 8
• His left eye carries a six-pointed-star Mangekyo Sharingan. 8
• His strengthened Amaterasu changes from purple-black to pale violet after the Uchiha mission reward. 36

Personality

Yun Xi is pragmatic and survival-driven. Though he is willing to kill hostile opponents without hesitation—especially Root agents, rogue shinobi, and Gato’s men—he does not pursue violence merely for its own sake. He evaluates threats, protects his resources, and prefers decisive action over prolonged risks. 13 24 35

He is also strategic about concealing his strength. He deliberately uses ordinary taijutsu in Konoha, reveals only selected talents to the Third Hokage, and relies on shadow clones, transformations, and preparation to avoid exposing his full capabilities prematurely. 7 12 28

Despite his focus on power and money, Yun Xi values companionship. He befriends Naruto, protects Karin, spares Kakashi after defeating him, and founds Hidden around the stated purpose of protecting his companions in a dangerous world. 8 24 44

Abilities & Skills

Pay-to-Win System

Yun Xi’s primary source of growth is a system that exchanges currency for Pay-to-Win Points at a rate of 100 yen per point. It also provides hidden tasks, plot-related missions, random draws, a shop, and a Partner Cultivation System. 1 3 25

• Uses points to purchase bloodlines, techniques, elemental training, physical enhancements, and companion upgrades. 3 26 47
• Receives task rewards for purchases, recruitment, and plot events. 3 19 36
• Can inspect companions’ talent, strength, abilities, cultivation paths, and loyalty through the Partner Cultivation System. 25 26
• Must continually obtain money or points to sustain his preferred method of growth. 1 26

Sharingan and Mangekyo Sharingan

Yun Xi initially purchases a One-Tomoe Sharingan for his left eye, later obtaining a Mangekyo Sharingan. Its enhanced vision lets him read high-speed attacks, including Kimimaro’s bone bullets, and grants substantial genjutsu resistance. 3 7 16 37

• Uses the Sharingan’s dynamic vision to track enemies and evade rapid projectiles. 13 16
• Resists Itachi’s Tsukuyomi due to his Mangekyo Sharingan and superior ocular power. 37
• Can activate Susanoo despite possessing only one Mangekyo Sharingan after completing the Uchiha mission. 36
• Early Mangekyo use strains his body and had begun to impair his vision before he consumed the strengthening serum. 18 19

Enhanced Amaterasu

Yun Xi’s Mangekyo Sharingan and Heaven Curse Mark automatically fuse to produce a mutated Amaterasu. The flame is initially purple-black and carries a dark attribute capable of affecting an opponent’s spirit. 8

• Incinerates two elite Root Chunin during his first recorded use. 8
• Forces Orochimaru to use Water Style defenses and severely burns Kimimaro’s arm. 17
• Gains a 100% power increase after Yun Xi collects 107 Sharingan during the Uchiha massacre. 36
• The strengthened pale-violet flames can burn through rock and possess enhanced adhesion and destructive power. 36

Heaven Curse Mark

The system-modified Heaven Curse Mark greatly increases Yun Xi’s chakra, speed, and strength. Unlike Orochimaru’s version, it cannot be used to control Yun Xi. 2

• State One — Raises his chakra and physical power to approximately average Kage level, though prolonged use drains stamina. 8 9
• State Two — More than doubles his State One power and lets him contend seriously with Orochimaru. 16
• Limitations — Before strengthening his body, Yun Xi could maintain the mark for roughly two hours and suffered severe exhaustion when combining it with Sharingan techniques. 9 18
• Improved endurance — Basic Body Strengthening Serum doubles his physical constitution and makes State Two more practical to use. 19

Ninjutsu

Yun Xi possesses an unusually broad ninjutsu arsenal, much of it acquired directly through the system.

• Multi-Shadow Clone Technique — Given to him by Uncle Heiwa; the system upgrades it to Initiated proficiency. Yun Xi uses clones for decoys, attacks, and maintaining his Konoha cover while traveling. 2 3 12 35
• Fire Style — Gains knowledge of all Fire Style ninjutsu after meeting the Third Hokage. Frequently uses Great Fireball Technique, Fire Dragon Bullet, Phoenix Sage Fire Technique, and Majestic Destroyer Flame. 7 14 16 17
• Four basic chakra natures — Purchases elemental training talents, becoming proficient in Fire, Wind, Earth, and Lightning Style techniques. 26 49
• Lightning Style: Furious Thunder Tiger — Counters Kakashi’s Lightning Blade and injures him. 44
• Five Styles: Great Barrage Technique — Used against Danzo alongside Multi-Shadow Clones. 49
• Earth Style: Earth Wall — Used to defend against Danzo’s Wind Style attacks. 49

Combat and Tactical Ability

Yun Xi compensates for his initially weak close-combat foundation through preparation, deceptive tactics, and overwhelming ranged attacks.

• Avoids fighting Kimimaro directly in taijutsu, instead using clones and Fire Style to exploit range. 16
• Uses Karin’s sensory abilities to counter Zabuza’s Hidden Mist and Silent Killing techniques. 22
• Defeats Zabuza with a powerful kick after locating him in the mist. 22
• Defeats Kakashi, but chooses to knock him unconscious rather than kill him. 44
• Identifies his own weaknesses after fighting Orochimaru: limited attack variety, poor close-combat ability, and inadequate physical endurance. 18

Relationships

• Karin Uzumaki — His first loyal subordinate and closest companion. Yun Xi rescues her from Grass shinobi, provides her a home, relies on her sensory and healing abilities, and later enhances her with Hashirama’s active cells. 14 19 30 47
• Naruto Uzumaki — Friend. Yun Xi accepts Naruto’s grilled fish, offers him friendship, and later acts cautiously and protectively during the tense period after the Uchiha massacre. 8 40
• Zabuza Momochi — Recruited subordinate and Hidden’s initial field leader in the Land of Waves. Yun Xi defeats him, then earns his loyalty by explaining that Hidden exists to protect companions. 22 24 26
• Haku — Zabuza’s loyal companion and a member of Hidden after Zabuza joins Yun Xi. Yun Xi recognizes Haku’s Ice Release potential and avoids harming him during the conflict with Zabuza. 23 24
• Uncle Heiwa — Neighbor, mentor figure, and early benefactor who gives Yun Xi the Multi-Shadow Clone scroll and 100,000 yen. 2
• Third Hokage — A wary but increasingly cooperative authority figure. Yun Xi reveals only part of his talent to avoid suspicion, while the Hokage recognizes his importance as a high-level combat asset. 28 46
• Uchiha Sasuke — Initially hostile academy peer. Yun Xi defeats him in their first altercation and later agrees to provide basic training for Sasuke’s pursuit of strength. 11 44
• Uchiha Itachi — Initially threatens Yun Xi after the clash with Sasuke. Yun Xi later intends to recruit Itachi by offering protection for Sasuke, though their first Mangekyo confrontation remains tense. 11 30 37
• Danzo Shimura — Primary antagonist within Konoha. Danzo repeatedly sends Root agents to monitor or seize Yun Xi and Karin, leading Yun Xi to confront the Root Division directly. 7 42 49
• Orochimaru — Enemy and would-be recruiter. Orochimaru becomes interested in Yun Xi’s unusual Sharingan and Curse Mark, but Yun Xi rejects his offer after their battle. 16 18
• Pikachu — System reward and Karin’s initial preferred companion. It first resists Yun Xi, then becomes loyal and assists him with Thunderbolt against Root shinobi. 40 42

Story Role / Major Arcs

System Awakening and Academy Period

• Gains the Pay-to-Win System, increased chakra reserves, the Heaven Curse Mark, a One-Tomoe Sharingan, and the Multi-Shadow Clone Technique. 1 2 3
• Enters the Ninja Academy, befriends Naruto, draws attention from the Third Hokage, and becomes a target of Root surveillance. 5 8 10
• Defeats Root scouts with enhanced Amaterasu, establishing Danzo as a direct threat. 8

Recruitment of Karin

• Leaves Konoha using a shadow-clone decoy to locate Karin in the Land of Whirlpools before the Uchiha massacre. 12
• Saves Karin from Grass shinobi, defeats their Jonin-led group, and gains her trust through protection and patience. 13 14
• Battles Kimimaro and Orochimaru, revealing Curse Mark State Two and Mangekyo Sharingan before refusing Orochimaru’s recruitment offer. 16 18

Land of Waves and Formation of Hidden

• Targets Gato’s headquarters to obtain funds and establish a base of influence in the Land of Waves. 20
• Defeats Gato’s forces, Zabuza, and hired rogue shinobi with Karin’s support. 21 22 23
• Recruits Zabuza and Haku, kills Gato after his attempted attack, and seizes more than twenty million ryo for a massive system top-up. 24 25
• Names the organization Hidden, assigning Zabuza and Haku to establish its initial operations in the Land of Waves. 26 27

Uchiha Massacre

• Accepts the “Tragedy of the Uchiha” mission, which requires him to obtain as many Three-Tomoe Sharingan as possible. 10
• Confronts Uchiha Obito during the unfolding massacre. 32
• Collects 107 Sharingan from Uchiha clan members and completes the mission, unlocking single-eye Susanoo and doubling Amaterasu’s power. 35 36
• Faces Itachi and withstands his Tsukuyomi due to Yun Xi’s Mangekyo Sharingan. 37

Conflict with Root and Danzo

• Root attempts to abduct Karin and recruit both her and Yun Xi into Danzo’s organization. 41 42
• Yun Xi eliminates the Root agents at his home and resolves to remove Danzo permanently. 42
• Defeats Kakashi when Kakashi tries to stop him from entering Root territory, but spares him. 44
• Strengthens Karin with Hashirama’s active cells before entering the Root Division, then begins his direct battle against Danzo. 47 49

Notable Quotes

“My greatest dream is simple: I just want to survive in this world.” 5

“I just want to protect my companions in this dangerous world.” 24

“Is he worthy?” 42

Trivia

• Yun Xi is six years old when his first attribute panel is shown. 3
• His Sharingan is initially limited to his left eye because the system prices dōjutsu per eye. 3
• His Heaven Curse Mark differs visually from Sasuke’s, appearing as black wings rather than three tomoe. 3
• He considers money the fastest route to power because the system’s exchange rate is 100 yen for one Pay-to-Win Point. 1
• Yun Xi collects 107 Sharingan during the Uchiha Clan Downfall Incident. 36