Ibuki

Biodata

Feature	Value
Name	Mio Ibuki (伊吹)
Gender	Female
Affiliation	Class C; covertly allied with Kiyotaka Ayanokoji
Occupation/Role	Student; Class C operative and Kiyotaka's informant
Status	Active; remains a Class C student as of her latest documented appearance 49 50
First Appearance	Chapter 19 19

Background / History

During the uninhabited-island special exam, Ibuki is found alone, injured, and bruised by Kiyotaka and Airi while Class D gathers firewood. Although initially cold toward their aid, she is taken to Class D's camp, fed by Kikyo, and allowed to remain while the class decides her fate. Ibuki is surprised by their kindness, calling it foolish for students to show compassion toward someone from another class. 19

She thanks Kiyotaka for letting her stay but is visibly unsettled by his warning not to approach Class D with a hidden agenda. Her athletic build, guarded demeanor, and suspicious arrival immediately make her a potential Class C spy in Kiyotaka's eyes. 19 20

Ibuki later clashes with Kiyotaka after he encounters her bathing. She attacks him with a rapid series of powerful kicks, but he easily blocks, restrains, and defeats her. Despite her anger, Kiyotaka ultimately apologizes and leaves her his jacket, an act that leaves Ibuki confused about him. 21

After Class C abandons the island, Ibuki chooses to remain behind. She steals Horikita's green Ghost Card and lures Horikita into a confrontation, denying responsibility for the camp fire while admitting through her actions that she is working against Class D. Horikita is defeated and collapses; Ibuki subsequently hands the stolen card to an unidentified figure in the rain. 24 26 27

Following the exam, Ryuen beats Ibuki for what he considers her failure during the operation. Though still connected to Class C, she begins thinking of Kiyotaka instead and seeks him out for answers about her broken camera and the island fire. Kiyotaka admits that he destroyed the camera and set the fire, then offers to help her oppose Ryuen if she works for him. Ibuki agrees, trusting him despite recognizing the danger of the arrangement. 29 30 31

Ibuki becomes Kiyotaka's covert contact within Class C. During the special exam's Mars Group discussions, she communicates with him privately and openly pressures her own classmates to reveal their terminals. She later provides information concerning Class C's internal maneuvering and Ryuen's attempts to identify the VIPs. 34 38 40

At the Sports Festival, Ibuki races directly against Horikita in the final event. She starts strongly but loses by a narrow margin, leaving her frustrated with herself rather than blaming Horikita. Afterward, she reaffirms that she wants a better future than Class C can offer and agrees that she may transfer to Kiyotaka's class when the opportunity arises. 49 50

Appearance

Ibuki is a blue-haired girl with an athletic, trained physique. Her arms and calves are notably firm, suggesting regular physical training. 19

• Blue hair. 19
• Athletic build and strong legs suited to kicking and sprinting. 19 21 49
• First appears bruised and injured after being separated from Class C. 19
• Wears a black-and-white maid outfit during one of her secret visits to Kiyotaka. 40

Personality

Ibuki is blunt, suspicious, and fiercely independent. She initially rejects Class D's compassion, resents being treated as a liability, and reacts aggressively when she believes others are insulting or manipulating her. Her preferred response to confrontation is direct action, often through physical force. 19 21 30

Beneath her hostility, Ibuki is deeply dissatisfied with Ryuen's rule and Class C's repeated failures. She wants security and a better future, which makes Kiyotaka's promise of support difficult for her to refuse. Even after agreeing to cooperate with him, she refuses to pretend that her loyalty is effortless or absolute. 31 34 49

Abilities & Skills

Hand-to-Hand Combat

Ibuki is a capable close-range fighter who relies heavily on fast, forceful kicking techniques.

• Launches repeated whip-like kicks during her confrontation with Kiyotaka. 21
• Is strong enough to pressure Kiyotaka's blocking arm, though she is decisively outmatched by him. 21
• Defeats the already ill Horikita during their confrontation over the Ghost Card. 26 27
• Her combat ability is limited against opponents with substantially greater skill and strength, such as Kiyotaka. 21 30

Athleticism

Ibuki possesses strong speed, stamina, and physical conditioning.

• Her muscular arms and calves indicate regular training. 19
• Gets an excellent start in the Sports Festival race against Horikita. 49
• Remains competitive with Horikita for most of the race before losing narrowly. 49

Infiltration and Intelligence Gathering

Ibuki can operate covertly for Class C and gather information within rival groups.

• Joins Class D's island camp while concealing her true objective. 19 26
• Steals Horikita's Ghost Card during the island exam. 26 27
• Carries a camera on the island, later destroyed by Kiyotaka. 23 30 31
• Supplies Kiyotaka with information about Class C's VIP strategy and internal dissent. 38 40

Equipment / Items

• Green Ghost Card — Stolen from Horikita during the uninhabited-island exam and delivered to Class C's side. 26 27
• Camera — Carried during the island exam; Kiyotaka later admits to breaking it. 23 30 31
• Maid outfit — Worn during a secret visit to Kiyotaka's room after he says the style would suit her. 34 40

Relationships

• Kiyotaka Ayanokoji — Begins as a hostile and suspicious encounter, then becomes a secret alliance. Ibuki agrees to work for him in exchange for help taking down Ryuen and pursuing a better future; he later raises the possibility of her transferring to Class D. 19 31 49
• Ryuen Kakeru — Her Class C leader and former handler. Ryuen uses violence and intimidation against her after the island exam, contributing to her desire to oppose him. 22 29 31
• Suzune Horikita — A rival during the island exam and Sports Festival. Ibuki steals Horikita's Ghost Card, defeats her in their island fight, but later loses to her in a close race. 26 27 49
• Class D — Initially shelters and feeds Ibuki despite her Class C affiliation. She later betrays their trust by stealing Horikita's Ghost Card. 19 26 27
• Kikyo Kushida — Treats Ibuki warmly during her stay in Class D's camp and later helps Kiyotaka establish an opening with her. 19 20

Notable Quotes

“You guys... are you all idiots? Being this nice to someone from another class.” 19

“I can't stand being stuck in Class C. I can't stand failing again and again. I want a better future.” 49