Ayanokoji

Biodata

Feature	Information
Name	Ayanokoji Kiyotaka (绫小路)
Alias(es)	X — the hidden figure behind Class D's victories, as identified by Ryuen 169
Species/Race	Human
Gender	Male
Affiliation	Class D; Ayanokoji Group 15 427
Occupation/Role	Student; concealed strategist for Class D 169 288
Status	Enrolled; targeted for expulsion by Tsukishiro and a White Room student 425 543
First Appearance	Chapter 15 15

Background / History

Ayanokoji entered the school after escaping the White Room, an institution that uses extreme methods to raise geniuses. He was the only Fourth Generation student to complete its training, and was regarded as its “masterpiece.” 315 317 543

His enrollment was arranged through the Matsuo butler, who acted against Ayanokoji’s father’s wishes. The resulting persecution of the Matsuo family eventually led Matsuo Eiichiro to take his own life, creating the basis for Nanase Tsubasa’s hostility toward Ayanokoji. 515 516

At school, Ayanokoji initially concealed his abilities behind an unremarkable profile: average grades, no club activities or class role, and little visible social presence. He deliberately maintained this facade to avoid expectations and attention. 288 374 427

Tsukishiro’s arrival forced him to abandon part of that concealment. Ayanokoji disclosed his White Room background to trusted staff and allies, then accepted Shimiya Kuki’s cooperation against Tsukishiro after confirming that their objectives aligned. 315 319 322

Appearance

Ayanokoji is an ordinary-looking student of average build whose lack of distinctive features allows him to blend easily into a crowd. He wears the standard school uniform and is commonly described with brown bangs and dark gray eyes. 15 369

• Average build and deliberately inconspicuous appearance. 15
• Brown hair with bangs that partially cover his eyes. 15
• Dark gray eyes and a consistently expressionless demeanor. 369 423
• Often gives others the impression of an “ordinary” and low-presence student. 288 423

Personality

Ayanokoji is calm, highly observant, and difficult to provoke. Even when threatened, surrounded, or directly challenged, he responds with controlled speech and calculated action rather than visible panic. 169 170 419

His White Room upbringing leaves him inclined to treat people and situations as variables in a strategy. He will involve others when they are necessary to break a deadlock, as shown when he brought Ryuen into the conflict with Tsukishiro despite Shimiya’s concerns. 504

Despite this detachment, Ayanokoji gradually develops attachments he does not want to lose. He reveals his academic ability partly to protect the Ayanokoji Group, tutors Karuizawa Kei to keep her from expulsion, and seeks Shimiya’s guidance on how to separate himself from the White Room’s influence. 406 411 427

Abilities & Skills

Academic Ability

Ayanokoji possesses exceptional academic ability but spent much of his school life deliberately presenting average results.

• Scored full marks and tied for third place in the Cross-Year Academic Ability Exam. 423
• His ordinary academic record was considered suspicious precisely because it was too perfectly average. 288
• Revealed his full marks to strengthen his standing in Class D and challenge Shimiya. 423
• Defeated a White Room chess instructor consistently by the age of nine through repeated calculation and analysis. 307

Combat Ability

Ayanokoji is an overwhelmingly capable close-range fighter whose efficiency exceeds the expectations of students familiar with violence.

• Subdued Ishizaki Daichi, Albert Yamada, and Ibuki Mio in rapid succession without showing significant fatigue. 170
• Defeated Ryuen Kakeru after enduring and analyzing Ryuen’s attacks. 171
• Evaded Nanase’s attacks while identifying the false “Matsuo Eiichiro” persona driving her actions. 514
• His true combat ability remains largely concealed from the wider student body. 288 423

Strategic Analysis

Ayanokoji rapidly assesses motives, incentives, and available evidence to produce an advantageous response.

• Exposed Hosen’s attempt to frame him by recording the confrontation in advance. 418
• Negotiated compensation for Horikita and Sudo, forced Hosen’s cooperation in team formation, and secured Hosen as his own exam partner. 419
• Investigates potential White Room agents through their behavior, presentation, and inconsistencies rather than assumptions. 391 392
• Reassesses plans when new information about Tsukishiro, Shimiya, or the first-year hunters becomes available. 319 320 504

Instruction and Cooking

Ayanokoji can assess another student’s weaknesses and provide focused support, though he initially sought outside help to prepare for Amasawa’s cooking test.

• Administered an assessment test before tutoring Karuizawa and focused on her weak academic areas. 411
• Used Shimiya’s guidance and Ichinose’s assistance while preparing to cook for Amasawa. 399
• Cooked for Karuizawa as encouragement for her studying. 413
• Used the cooking demonstration as an opportunity to observe Amasawa and test whether she was connected to the White Room. 395 399

Equipment / Items

• Student terminal / phone — used for messages, exam information, point management, and strategic communication. 395 469
• Recording setup — used to preserve evidence against Hosen’s attempted self-inflicted framing. 418
• Monitor — prepared during Amasawa’s visit to protect Ayanokoji from false accusations. 399

Relationships

• Karuizawa Kei — Romantic partner. She protected his identity during Ryuen’s interrogation, while Ayanokoji tutors and protects her during special exams. 169 406 427
• Horikita Suzune — Classmate and frequent strategic partner. She gradually realizes that his apparent abilities were fabricated, while trusting him to negotiate against Hosen. 419 423
• Shimiya Kuki — A wary ally with a similarly traumatic institutional background. They cooperate against Tsukishiro, and Ayanokoji views Shimiya as an example of someone who has escaped a fate like his own. 319 322 504 423
• Ryuen Kakeru — Rival and former rooftop opponent. Ayanokoji defeated Ryuen’s group, later involving him in the struggle against Tsukishiro because Ryuen could act outside their surveillance. 170 171 504
• Sakayanagi Arisu — Identified as his childhood friend. She knows of his unusual background and repeatedly probes his connection to the White Room. 307 316
• Chabashira Sae — Class D’s teacher. She protects him from Hoshinomiya’s teasing and later chooses not to interfere after his full-mark reveal. 15 424
• Ayanokoji Group — Qi Cheng, Haruka, and Miyake Akito form his closest non-utilitarian friendship circle. Ayanokoji explains his deception to them and asks them to remain by his side. 427
• Tsukishiro Tokinari — Acting Chairman attempting to force Ayanokoji out of school and return him to the White Room’s control. 315 425
• Yagami Takuya — White Room Fifth Generation student sent primarily to expel Ayanokoji; Yagami considers him the benchmark he must surpass. 543

Story Role / Major Arcs

Ordinary Facade

Ayanokoji is introduced as an apparently average Class D student who avoids attention, offers little reaction to social pressure, and hides the extent of his abilities from classmates and teachers. 15 288

Rooftop Confrontation

To protect Karuizawa, Ayanokoji reveals himself as the person assisting Class D. He defeats Ishizaki, Albert, Ibuki, and finally Ryuen, exposing the vast gap between his concealed reputation and actual combat ability. 169 170 171

Tsukishiro and Night Abyss Alliance

Ayanokoji reveals the White Room’s existence and Tsukishiro’s objective to school staff. After Shimiya discloses his Night Abyss background, the two establish a practical alliance centered on removing Tsukishiro from the school. 315 317 319 320

Cross-Year Academic Ability Exam

Ayanokoji investigates the first-year hunters while navigating partnerships and threats from Hosen, Amasawa, and Yagami. He publicly scores full marks, ending his academic disguise and making himself a more important figure within Class D. 391 418 423 425

Deserted Island Exam

During the island exam, Ayanokoji coordinates with Shimiya and Ryuen against Tsukishiro’s interference. He uncovers Nanase’s false identity, learns of the Matsuo family tragedy, and remains alert to Amasawa and Yagami as White Room-related threats. 504 514 515 518 543

Notable Quotes

“Am I really backed into a corner?” 170

“What do you think... should I do to completely ‘walk out’ of that place?” 322