Ibuki Mio

Biodata

Feature	Details
Name	Ibuki Mio (伊吹澪)
Gender	Female
Affiliation	Advanced Nurturing High School, Class C; secretly serves Rinya 18 20
Occupation/Role	Student; Rinya’s informant within Class C 20
Status	Active; remains under Rinya’s direction during preparations for the uninhabited island exam 45
First Appearance	Confronts Kushida Kikyo alongside Ishizaki Daichi 18

History

Confrontation with Class D

Ibuki and Ishizaki corner Kushida Kikyo in an alley to test the strength she displayed against Ryuen Kakeru. Ibuki notices Kushida’s concealed nervousness and concludes that her apparent martial prowess is a facade. Despite Kushida’s refusal to fight, she attacks with a full-force side kick, which Horikita Suzune intercepts 18 19.

Their fight escalates when Ishizaki disregards Ibuki’s insistence that he stay out of her one-on-one confrontation. After Kushida wounds him with glass, he draws a high-voltage stun baton. Ibuki stops fighting Suzune and attempts to restrain her own teammate, urging the other girls to escape. Ishizaki turns the weapon on her, but Rinya intervenes, takes the baton, and knocks him unconscious 19.

Forced Recruitment

Rinya identifies Ibuki as a useful prospective informant because her physical and mental abilities rank among Class C’s best. Terrified by his speed and resistance to electricity, she cannot resist when he lifts her with one hand. He gives her ten seconds to choose between being crippled and losing her schooling or becoming his eyes and ears in Class C. She chooses the latter 20.

Rinya promises personal protection and offers to fulfill her desire to defeat Suzune. After Kushida slaps her for nearly calling him a monster, Ibuki restrains herself and addresses him as “Master.” She agrees to gather intelligence in exchange for an uninterrupted one-on-one duel with Suzune, fought until one participant kneels and begs for mercy 20.

When the school investigates the alley incident, Ibuki conceals Rinya’s involvement. Even under repeated questioning from Ryuen, she maintains that Kushida defeated both her and Ishizaki instantly. Her testimony helps establish Kushida’s reputation as the school’s “Goddess of Martial Arts” 21.

Exposed Informant and Rescue

Rinya later leaves Ibuki and Kushida to execute an operation intended to expose Koenji Rokusuke’s capabilities. Ibuki returns to monitor Ryuen and promises to report changes by phone. When Ryuen detects something wrong with her behavior, she warns Kushida to flee before contact breaks down 23 24.

Ibuki escapes along an unfinished mountain path, exhausting several pursuers, but eventually runs out of stamina while fighting Ishizaki. Cornered near the sea and threatened with sexual assault, she notices Kushida approaching behind him. Through a silent exchange of glances, the girls coordinate: Ibuki stalls him while Kushida records his incriminating statements, then attacks and rescues her 25.

After exchanging information, they hurry to the gym. Ibuki discovers Sudo Ken fighting Albert rather than the expected confrontation involving Ryuen and Koenji. Recognizing that Ryuen may instead be waiting at Kushida’s camera location, she returns, finds Kushida surrounded, and secretly calls Rinya for help 26.

Aftermath and Influence in Class C

While observing Ryuen’s confrontation with Koenji, Ibuki expresses disappointment that Ryuen’s use of a tranquilizer gun could destroy Class C if discovered. Her concern reveals that serving Rinya has not erased her attachment to her class 27.

After Rinya defeats Koenji, Ibuki helps Kushida manage the injured students and conceal the battle’s true cause behind a fabricated localized earthquake. Both girls fear that their performance has made them disposable, but Rinya praises their work and reassures them. They embrace him in relief 28.

Ibuki subsequently reports that Ryuen’s followers are treating her with increasing suspicion. Rinya discourages her from visiting the hospitalized classmates to explain herself; instead, he advises her to act colder and intimidate hostile students. During Ryuen’s absence, she uses her martial abilities to recruit a group of loyal followers 30 31.

Stadium Riot and Exam Preparations

At the joint physical examination, Ibuki remains near Rinya after sensing from his expression that something may go seriously wrong. During the ensuing riot, she watches Suzune being overwhelmed and asks permission to intervene, describing her as the only opponent she acknowledges. Rinya allows her to leave; Suzune is subsequently shown unconscious beside their group 33 34 35.

Their rivalry persists afterward. Ibuki trades barbs with Kushida and later plays retaliatory pranks on the unconscious Suzune while Rinya prepares to act elsewhere 35 36.

Before the uninhabited island exam, Rinya summons Ibuki and Kushida to prepare preventative measures against hypnosis. Both initially believe they have been invited individually, and Ibuki’s antagonistic teasing of Kushida continues during the visit 45.

Personality

Ibuki is combative, proud, and quick to challenge others. She presses Kushida into a fight after noticing her fear and treats Suzune as a particularly aggravating rival. Her competitiveness also includes resentment over comparisons between their bodies 19 35.

Her aggression has limits. She attempts to stop Ishizaki when his violence exceeds Ryuen’s instructions, even placing herself between him and his intended victims. She also worries that Ryuen’s prohibited weapon will endanger the entire class, showing concern beyond her own safety 19 27.

Her submission to Rinya begins through coercion rather than free allegiance. His threats reduce her to tears, but their relationship later includes reliance on his protection and fear of being discarded. Despite that dependence, she retains her attachment to Class C and enough respect for Suzune to seek permission to help her during the riot 20 27 28 34.

Abilities & Skills

Martial Arts

Ibuki possesses superior martial abilities and is assessed by Rinya as one of Class C’s strongest students in both physical and mental capability 20.

• Uses forceful kicks and sustained close-range attacks against Suzune 19.
• Builds a following in Class C through martial intimidation during Ryuen’s absence 31.
• Cannot overpower the enraged Ishizaki while restraining his weapon arm 19.
• Is physically and psychologically overwhelmed by Rinya 20.

Endurance and Mobility

• Escapes to an unfinished mountain path at least ten miles from Kushida’s location, leaving exhausted pursuers behind her 25.
• Continues fighting after the pursuit, but depleted stamina leaves her vulnerable to Ishizaki 25.
• Keeps pace with Kushida’s hurried journey to the gym only with difficulty; both arrive breathless 26.

Observation and Intelligence Work

• Detects the brief nervousness beneath Kushida’s composed expression 19.
• Monitors Ryuen and communicates developments to Kushida by phone 24.
• Recognizes the likely ambush at Kushida’s camera location after finding Albert at the gym 26.
• Sustains a false account of the alley confrontation despite repeated questioning from Ryuen 21.

Equipment / Items

• Mobile phone — Used to coordinate with Kushida, warn her when the operation is compromised, and contact Rinya for assistance or advice 24 26 30.
• Small backpack — Carries the backpack Rinya asks about during the stadium riot; its contents are not identified in the provided passages 34.

Relationships

• Rinya — Coercive recruiter and master. He forces her to become his Class C informant, promises protection and a duel with Suzune, and later guides her efforts to survive suspicion within her class 20 28 30.
• Horikita Suzune — Rival and the only opponent Ibuki explicitly acknowledges. Ibuki wants a decisive private duel with her, but also intervenes when Suzune is endangered during the riot 19 20 34.
• Kushida Kikyo — Initially an opponent, later a fellow subordinate and operational partner. Kushida slaps her during her recruitment but subsequently rescues her from Ishizaki. Their cooperation remains punctuated by mockery and retaliatory teasing 20 25 26 35 45.
• Ryuen Kakeru — Class C leader whom Ibuki initially assists, then secretly monitors for Rinya. His suspicions expose her during the operation; she later condemns his willingness to jeopardize their class 18 24 27.
• Ishizaki Daichi — Former teammate turned threat. He ignores her objections during the alley fight, attacks her with a stun baton, and later pursues and threatens to sexually assault her 19 25.