Yuefeng

Biodata

Feature	Value
Name	Yuefeng (月峰)
Alias(es)	Ayanokoji Yuefeng
Gender	Male
Affiliation	Class C; Tokyo Metropolitan Advanced Nurturing High School; Special Project Research Group
Occupation/Role	Transfer student; Ryuen Kakeru's informant and operative within the Special Project Research Group
First Appearance	Chapter 1

Background / History

Yuefeng awakens in a luxurious office and is informed by Ayanokoji Father that he is an Ayanokoji family son. He receives enrollment at Tokyo Metropolitan Advanced Nurturing High School, where he is expected to bring his younger brother, Kiyotaka, back to the family. His personal file identifies him as Ayanokoji Yuefeng and lists family trusts, educational funds, and real-estate rights. 1

Although initially overwhelmed by his new identity, wealth, and imposed mission, Yuefeng enters the school determined to adapt. He is placed in Class C rather than Kiyotaka's Class D, immediately making him a conspicuous variable in the school environment. 2

Ryuen Kakeru demands that Yuefeng prove his worth to Class C. Yuefeng offers observation and information-organizing skills while concealing the extent of his prior knowledge and his growing perceptual ability. 3 4

After being repeatedly targeted by Ishizaki Daichi and his group, Yuefeng begins developing practical self-defense skills. He studies human mechanics, basic combat, escape techniques, and classical martial arts, seeking efficient ways to apply his Slow Motion perception despite his ordinary physical foundation. 32 35

Appearance

Yuefeng strongly resembles Kiyotaka Ayanokoji; his school-file photograph is described as a cold, expressionless “mini version” of Kiyotaka. 1

• Initially wears conspicuously expensive attire, drawing attention from Class C. 3
• Has a face notably similar to Kiyotaka's. 1 4
• Wears his left arm in a sling following the Sports Festival injury. 22 24
• Appears slightly pale while recovering, though his gaze becomes calmer and sharper. 22

Personality

Yuefeng is cautious, adaptable, and keenly aware of the school’s hostile hierarchy. Initially desperate to remain inconspicuous, he learns that survival in Class C requires demonstrating enough utility to deter aggression without becoming completely controllable by Ryuen. 3 9 25

He favors preparation over direct confrontation, maintaining detailed “Survival Notes,” studying school rules, recording behavioral patterns, and filtering intelligence before reporting it to Ryuen. 4 15 25 29

Despite his self-preserving instincts, Yuefeng consistently intervenes when others are threatened. He protects Hiyori Shiina and Airi Sakura, comforts Hiyori amid damaging rumors, and ultimately confronts Ishizaki to protect himself and those close to him. 16 22 23 40

Abilities & Skills

Slow Motion / Perception Enhancement

Yuefeng can perceive hostile movements in apparent slow motion, allowing him to react to attacks with abnormal precision. The ability initially manifests unpredictably under danger and does not improve his raw speed, stamina, or physical conditioning. 4 5 20

• Detects attacks, trips, shoves, and sudden changes in body movement. 4 5
• Allows him to dodge Ishizaki's attempted baton strike and seize the baton during the Obstacle Relay. 21
• Helps him observe details during examinations and analyze difficult logical problems. 6 12 15
• Can be used to notice micro-expressions and gestures, though this application is mentally exhausting and unreliable. 25
• Becomes more stable and lasts longer when Yuefeng is highly focused on survival threats, but its use consumes more energy. 47
• Cannot predict every scheme or compensate for his limited stamina and speed. 20

Observation and Intelligence Analysis

Yuefeng systematically gathers, organizes, and strategically withholds information about students, class structures, school regulations, and interpersonal conflicts. 3 4 15 29

• Maintains extensive “Survival Notes” on key students, class dynamics, and potential threats. 4 9 24
• Uses school regulations to prevent Ishizaki from escalating a confrontation with Kiyotaka. 15
• Purchases and studies an analysis of Ryuen's behavior patterns to understand Class C's power structure. 15
• Filters reports to Ryuen, providing useful information while concealing sensitive details about Sakayanagi and the research group. 29
• Obtains a recording of Ishizaki discussing extortion and violence, later using it as leverage. 39 40

Academic Ability

Yuefeng is a diligent student whose preparation, note-taking, and broad review habits allow him to compensate for his unfamiliarity with the school system. 9 12

• Passed the Special Enrollment Exam in 37th place with an A- rating. 14
• Earned 50,000 S Points and a class bonus through his exam performance. 14
• Studies Advanced Logic and Game Theory, using the course to improve his understanding of strategy, choices, and consequences. 15 24
• Is selected for the Special Project Research Group after submitting an application prepared through Ryuen's intervention. 25 26

Self-Defense and Combat

Yuefeng develops practical fighting ability by combining self-defense study with Slow Motion perception. He focuses on defensive counters rather than becoming a conventional martial artist. 32 35

• Studies joint vulnerabilities, force application, escaping holds, and using the environment. 32
• Deflects attacks and targets opponents’ balance rather than striking vital areas. 40
• Disables two of Ishizaki's lackeys during an alley confrontation. 40
• Grips Ishizaki's wrist at a pressure point, causing numbness and weakening his arm. 40
• Acknowledges that a prolonged or more desperate fight could still have ended unpredictably. 40

Equipment / Items

• Survival Notes — Personal records on students, school systems, threats, and strategies. 4 9 24
• Dedicated S Points account — Activated upon his enrollment. 2
• Ryuen behavior-analysis document — Purchased using part of his Special Enrollment Exam reward. 15
• Medical kit — Contains disinfectant and bandages prepared before the Sports Festival. 20
• Recording of Ishizaki's plans — Evidence of extortion and violence retained as leverage. 39 40
• Airi Sakura's cookies — A private gift of gratitude that Yuefeng keeps hidden in his bookshelf. 24 25

Relationships

• Ayanokoji Father — Father and the source of Yuefeng's mission to bring Kiyotaka back; treats Yuefeng as part of a larger plan and expects him to prove the Ayanokoji family's worth. 1 14 23
• Ayanokoji Kiyotaka — Younger brother. Their interactions are guarded and analytical; Kiyotaka observes Yuefeng as an unplanned variable while occasionally providing warnings and useful information. 2 7 15 17 35
• Ryuen Kakeru — Class C leader who initially tests Yuefeng's value, then uses him as an intelligence source and places him in the Special Project Research Group. 3 25 26 29
• Hiyori Shiina — Classmate, study partner, and trusted ally. Yuefeng saves her, supports her during rumors, and works with her in the research group. 5 22 23 29
• Airi Sakura — Class D student whom Yuefeng protects from harassment and later helps by returning her cloth bag; she thanks him with homemade cookies. 16 17 24 32
• Ibuki Mio — Class C student who rescues Yuefeng from Ishizaki's group and later assesses his growing strength. 22 31 29
• Ishizaki Daichi — Persistent antagonist who targets Yuefeng through harassment, sabotage, rumors, and violence. Yuefeng eventually defeats and blackmails him into leaving Yuefeng, Sakura, and Shiina alone. 4 21 22 39 40
• Sakayanagi Arisu — Fellow Special Project Research Group member whose intellectual scrutiny makes Yuefeng uneasy; she probes him about Class C's informal rules. 27 28
• Kushida Kikyo — Class D student whom Yuefeng recognizes as dangerous due to her talent for gathering information and manipulating relationships. 49 50

Story Role / Major Arcs

Transfer to Class C

Yuefeng arrives at Advanced Nurturing High School under his father's orders and is assigned to Class C. His resemblance and connection to Kiyotaka immediately attract Ryuen's suspicion. 1 2 3

Discovery of Slow Motion

During PE harassment by Ishizaki's group, Yuefeng first manifests his unusual reflexive perception. Ryuen notices the inconsistency between Yuefeng's average physical ability and his precise evasions. 4 5

Special Enrollment Exam

Pressured into participating, Yuefeng prepares intensely with help from Kiyotaka's hints and Hiyori's guidance. He passes with an A- rating, gains S Points, and becomes more valuable to Ryuen. 8 9 12 14

Sports Festival and Injury

Assigned to Class C's Obstacle Relay, Yuefeng anticipates sabotage from Ishizaki. He avoids a direct baton strike, continues despite a serious arm injury, and finishes the race, though Class C places fourth. 20 21 22

Rumors and the Research Group

After the Sports Festival, Yuefeng supports Hiyori through rumors involving Ishizaki. Ryuen recruits him for the Special Project Research Group, where Yuefeng becomes an informant while building connections with representatives from other classes. 22 23 25 26 27 29

Conflict with Ishizaki

Ishizaki's hostility escalates into direct intimidation and violence. Yuefeng trains in self-defense, obtains evidence of Ishizaki's misconduct, defeats him and his lackeys in an alley, and forces him to back down through the threat of exposure. 32 35 39 40

Wilderness Survival Preparations

As a new special exam approaches, Yuefeng works with Hiyori to analyze rules concerning leader authority, task triggers, bases, and penalties. He also trains to use Slow Motion more reliably under survival conditions. 46 47