Nine-Tailed Fox

Biodata

Feature	Details
Name	Nine-Tailed Fox (九尾狐)
Alias(es)	Kurama; Ten-Tails (after evolution) 1 116
Species/Race	Nine-tailed fox; carries a thin trace of the Celestial/Heavenly Nine-Tailed Fox bloodline 153 154
Gender	Female 22
Affiliation	Su Yu; his bound soul-space companion 1 22
Occupation/Role	Su Yu’s pet, combat partner, chakra source, and protector 1 19 22
Status	Active 264
First Appearance	Chapter 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Nine-Tailed Fox	5	Manifested as an enormous golden fox with nine tails. Su Yu could stand within her head and clad her in Susanoo armor. 5
Ancient Magic absorption	100	Swallowed every available Source of Ancient Magic, then entered forced slumber to digest the overwhelming power. 100
Ten-Tails	116	Awoke with a tenth tail and a major increase in power. Her Ten-Tails state became a potential foundation for Su Yu’s Pseudo-Six Paths Mode. 116
Ancient Fox Clan inheritance	154	Received an inherited power preserved by the Heavenly Nine-Tailed Fox. Her body grew larger, her fur became golden-red, and she gained knowledge—including a possible method of taking human form—that requires time to understand. 154

Background

Nine-Tailed Fox resides within Su Yu’s soul space and shares a close, unusual bond with him. When Albus Dumbledore intruded into Su Yu’s mind through Legilimency, he encountered her behind a massive sealed gate; she swallowed his projected consciousness and forced him out. 1

Her origins are unknown even to herself. At Qingqiu Mountain, a Heavenly Nine-Tailed Fox recognized a thin trace of celestial fox blood in her and asked whether she belonged to the Tushan or Yousu clans. Nine-Tailed Fox could not answer. 153 The Heavenly Nine-Tailed Fox later revealed that an unnamed ancient figure had arranged for her to receive a power belonging to the Ancient Fox Clan. 154

Although Su Yu often calls her his pet, their relationship is reciprocal: she supplies him with chakra and protection, while he houses, feeds, comforts, and fights beside her. When Tang Yebai severed Su Yu’s connection to her with a bronze mask, she panicked at being unable to sense him. 22 245

Appearance

Nine-Tailed Fox normally manifests as a small fox with golden-red fur, upright ears, amber eyes, and multiple fluffy tails. 7 Her pupils narrow vertically when alert or threatened. 5 153

• Her early forms possess nine tails; after absorbing Ancient Magic, she is explicitly observed with ten tails. 5 116
• In giant combat form, each tail is described as thick as an ancient tree trunk, and her head can reach the clouds. 5
• Her post-inheritance coat gleams red through gold, with golden-red tail tips. 154
• She can manifest from Su Yu’s body, perch on his shoulder, or return to his soul space at will. 26 53 190
• Nuo ritual protectors identify her as a demon carrying baleful aura, though they do not attack because she bears no wronged souls. 223

Personality

Nine-Tailed Fox is greedy, gluttonous, excitable, and easily distracted by food or wealth. Cheesecake, ice cream, roast duck, gold, and shiny valuables reliably capture her attention. 1 26 116 137 She treats gold coins as personally meaningful possessions and becomes furious when they are stolen. 29

She is also proud and dramatic. She boasts after gaining power, insists she is not frightened even when terrified, and reacts intensely to insults or perceived disrespect toward Su Yu. 26 85 116 Her temper is usually short-lived; food, petting, or an apology from Su Yu can quickly placate her. 7 26

Beneath her childish behavior, she is fiercely loyal. She willingly gave Su Yu all of her chakra after Belial injured her, warned him that a dangerous weapon carried unknown corruption, and reacts strongly whenever his safety is threatened. 22 51 245 After her unchecked Tailed Beast Bomb devastated Mount Yaoguang, she showed genuine remorse and promised not to act without permission. 156

Abilities & Skills

Soul-Space Bond

Nine-Tailed Fox is linked directly to Su Yu’s soul space.

• Can reside within Su Yu and emerge physically when needed. 26 33 190
• Communicates with Su Yu mentally and offers tactical advice. 8 22 255
• Her connection to Su Yu is strong enough that its sudden severance causes her panic. 245
• Defended Su Yu’s mind from Dumbledore’s Legilimency by consuming the intruding consciousness. 1

Chakra Sharing

Her chakra is a major component of Su Yu’s combat power.

• Can transfer her full chakra reserve to Su Yu without hesitation. 22
• Supports Su Yu’s Nine-Tailed Fox Mode, chakra cloaks, chakra-enhanced physical strength, and Tailed Beast Bombs. 98 190
• Her chakra, combined with Su Yu’s, can be stored in Nine-Tails Badges that create a protective cloak, accelerate healing, replenish magic, strengthen attacks, and resist dark corruption. 19
• Her Ten-Tails state is connected to Su Yu’s potential access to Pseudo-Six Paths power. 116

Giant Fox and Tailed Beast Bomb

Nine-Tailed Fox can expand into a colossal fox avatar for large-scale combat.

• Her giant form can be armored with Susanoo, creating a crimson-armored fox capable of devastating the Forbidden Forest with the movement of her tails. 5
• Can form and fire Tailed Beast Bombs; one such attack was described as mountain-sized. 156
• Her firepower can be dangerously indiscriminate: Su Yu had to deploy Fivefold Rashomon and Susanoo to shield the group from her own attack. 156
• Her rapid growth after gaining new power contributed to her loss of control during the Mount Yaoguang incident. 156

Senses and Supernatural Presence

Nine-Tailed Fox possesses acute instincts for threats and malicious presences.

• Detected that something living within Professor Quirrell was filled with deep malice. 7
• Identified strong malice pursuing Pheobe during the Eight-Team Tournament. 190
• Intimidated a flying salamander into retreating into a fireplace with a growl. 36
• Her demonic aura draws the attention of exorcism-oriented spiritual entities. 223

Ancient Fox Clan Legacy

The inheritance from the Heavenly Nine-Tailed Fox placed her on an independent path of growth.

• Possesses a thin Celestial Fox Bloodline. 153 154
• Received power preserved from the Ancient Fox Clan through forehead contact. 154
• Acquired knowledge that includes a future method of taking human form. 154
• Has not fully mastered the inheritance; its power cannot be achieved immediately. 154

Equipment / Items

• Philosopher’s Stone — Worn around her neck and guarded closely while sleeping. 29
• Gold necklace — Purchased in Hogsmeade for 5,000 Galleons and proudly displayed. 65
• Longevity lock — Worn while showing off her transformed fur after receiving the Ancient Fox Clan inheritance. 154

Relationships

• Su Yu — Bound companion and closest partner. They bicker constantly, but she entrusts him with her chakra and reacts fiercely to threats against him. 1 22 51
• Daphne Greengrass — Caretaker and frequent source of comfort; Daphne cleans her fur, lets her sleep on her lap, and notices changes in her appearance. 7 11 116
• Ginny Weasley — Ginny can calm and physically restrain her when she becomes aggressive, earning her trust. 85
• Sister Fa — Often treats her maternally, soothing and grooming her after she is frightened or upset. 26
• Heavenly Nine-Tailed Fox — A powerful Qingqiu fox who recognized her bloodline and transferred the Ancient Fox Clan inheritance to her. 153 154
• Blackshell — A near-thousand-year-old turtle who tricked her into eating a bitter lotus seed. 57

Story Role / Major Arcs

• Dumbledore’s mental intrusion — Guarded Su Yu’s soul space and drove Dumbledore out after he used Legilimency without permission. 1
• Early Hogwarts conflict — Manifested in colossal form and fought under Susanoo armor during Su Yu’s confrontation with Dumbledore. 5
• Hell Valley — Fought alongside Su Yu against Belial and the hell army; after being injured, gave Su Yu all her chakra for his Sage Art counterattack. 22
• Ancient Magic Vault — Swallowed the Sources of Ancient Magic after Ranrok’s defeat, forcing herself into slumber and eventually evolving into the Ten-Tails. 100 116
• Southern Mountains journey — Met the Heavenly Nine-Tailed Fox, learned of her unknown celestial heritage, and received the Ancient Fox Clan inheritance. 153 154
• Mount Yaoguang incident — Tested her enhanced strength with an excessive Tailed Beast Bomb, annihilating attacking beasts and causing catastrophic collateral damage. 156
• Eight-Team Tournament — Assisted Su Yu in hunting artificial demon beasts, scouting the terrain, and pursuing the 10,000-point final treasure. 190
• Tang Sect conflict — Became distressed when Su Yu was isolated from her by Tang Yebai’s bronze mask and the Ghost Gate was opened. 245

Notable Quotes

“They're my gold coins! Every single one has feelings!” 29

“They're all mine! All mine! Even if I die today, I'm dying here!” 116

“You should've said it was power. Then I want it!” 154