Kageya Shinjitsu

Biodata

Feature	Details
Name	Kageya Shinjitsu (影夜真实)
Alias(es)	“Minotaur Warrior”; “Chiba Demon King” 25 26
Species/Race	Human
Gender	Male
Affiliation	Advanced Nurturing High School; formerly First-Year Class D; Student Council; later transferred to Class A 32 48
Occupation/Role	Student; Student Council member
Status	Enrolled
First Appearance	Chapter 1

Background / History

Before enrolling at Advanced Nurturing High School, Shinjitsu developed a violent reputation at Chiba Middle School. He fought delinquents, gained the “Minotaur Warrior” nickname, and was reportedly exposed after dealing with numerous troublemakers. The resulting scandal nearly prevented his high-school admission and almost led to detention. His mother repeatedly begged him to avoid further fights during his three school years. 1 25

He enters Advanced Nurturing High School as a First-Year Class D student. Despite his plain self-introduction and outwardly unassuming demeanor, his official profile records perfect or near-perfect academic and physical-test results: Academic Ability, Intelligence, Judgment, and Physical Ability are all rated A, while Teamwork Ability is rated D. 4 9

From his first days at school, Shinjitsu investigates its hidden rules independently. He obtains surveillance footage of an upperclassman’s harassment, presses the Student Council for information, and learns that private points can purchase items, intelligence, penalty waivers, class transfers, and protection from expulsion. 6 7 8

Appearance

Shinjitsu initially presents himself as a quiet, well-behaved student rather than an intimidating fighter. His uniform conceals a heavily trained physique and numerous scars, including marks that resemble knife wounds. 2 19

• Black hair reaching his ears. 2
• Handsome, model-student-like appearance. 2
• Approximately 1.75 meters tall. 2
• Lean, muscular build with pronounced core strength and eight-pack abs. 12
• Numerous body scars, some apparently caused by blades. 19
• Habitually trains with gym equipment, runs, and uses a grip strengthener. 12 17

Personality

Shinjitsu is intensely individualistic. He believes that failure comes from insufficient personal ability and dismisses friendship as inherently transactional. This worldview drives his refusal to prioritize Class D’s collective interests over his own security, wealth, and eventual transfer to Class A. 12 13 45

He often appears apathetic, socially awkward, or forgetful—most notably when repeatedly misnaming Kushida Kikyo. Beneath that façade, he is observant, calculating, and willing to test people, exploit school rules, and manipulate conflicts to gain leverage. 2 7 19 27

Shinjitsu treats ordinary people and malicious people differently. He can remain calm, polite, and helpful, such as when giving up his bus seat or protecting Karuizawa Kei, but becomes sarcastic, threatening, and cruelly provocative when he believes someone has wronged him. 1 19 26 40

Abilities & Skills

Physical Combat

Shinjitsu possesses exceptional strength, endurance, and practical fighting experience.

• Easily overwhelms Ike Kanji during their locker-room conflict, slamming him into a metal locker. 19
• Defeats three second-year students alone despite being injured and outnumbered. 27
• Knocks opponents unconscious with a small number of punches. 27
• Uses violence strategically, staging the aftermath of the second-year fight to make the upperclassmen appear responsible for attacking Karuizawa. 26 27
• His scars and prior delinquent encounters suggest extensive pre-enrollment exposure to violence. 1 19 25

Athletic Ability

His physical conditioning translates directly into competitive performance.

• Records 22.5 seconds in the 50-meter swim, surpassing Koenji Rokusuke’s 23.22 seconds. 22
• Receives 5,000 points for winning the swimming event. 22
• Declines an invitation to join the swimming club despite the teacher’s interest. 22
• Maintains a strict exercise routine involving weight training, stretching, jogging, and grip training. 12 17

Intelligence and Deduction

Shinjitsu rapidly identifies institutional incentives and gathers information without relying on classmates.

• Deduces key aspects of the school’s point economy by questioning upperclassmen and the Student Council. 7
• Uses surveillance footage to report misconduct and test how the school handles evidence and discipline. 6 8
• Identifies Class D’s impending loss of class points while most classmates remain unaware. 16 17
• Recognizes Kushida’s public persona as an act after witnessing her private behavior. 38 42
• Holds A ratings in Academic Ability, Intelligence, and Judgment; his exam scores are recorded as essentially perfect. 9

Strategy and Manipulation

Shinjitsu treats private points, information, and social connections as tools for advancing his personal objectives.

• Negotiates with Ryuen Kakeru and Ichinose Honami to profit from the widening point gap between classes. 14
• Secures agreements that would collectively yield at least 16 million private points over time. 16
• Sells Class D’s evaluation information to Nagumo Miyabi for 6 million points, with an additional 600,000 points designated as compensation for Karuizawa. 32
• Uses the school forum to retaliate against Ike, Yamauchi, and Sudo after they target him. 36 37
• Manipulates the second-year ambush’s evidence and presentation to protect Karuizawa and turn the incident against his attackers. 26 27

Equipment / Items

• Mobile phone — Used to copy surveillance footage and record the second-year ambush. 6 26
• Grip strengthener — Frequently used during class and while commuting. 12 17
• Private points — His primary resource for purchasing information, arranging deals, and funding his transfer. 7 14 32

Relationships

• Kushida Kikyo — Desk mate and persistent would-be friend. Their initially playful relationship becomes hostile and psychologically charged after Shinjitsu discovers her concealed violent side. 1 2 38 40
• Karuizawa Kei — Initially approaches him because of his Chiba reputation. After he protects her from second-year students, she asks for protection; Shinjitsu accepts her as a “tool” under his conditions. 25 26 30
• Horikita Manabu — Student Council President who recognizes Shinjitsu’s exceptional profile, recruits him into the Student Council, and later asks him to look after Suzune. 9 32 34
• Nagumo Miyabi — Student Council Vice President who resolves the second-year harassment case and later purchases Class D information from Shinjitsu. 12 32
• Hirata Yosuke — A classmate who repeatedly offers friendship and assistance. Hirata later regards Shinjitsu as a potential threat to Class D’s harmony. 12 19
• Ryuen Kakeru — Class C’s leader and Shinjitsu’s business counterpart. They negotiate a point-based deal, while Ryuen also seeks to draw Shinjitsu into Class C. 13 14
• Ichinose Honami — Class B representative whom Shinjitsu persuades into a strategic agreement intended to keep Class B from obstructing his plans. 11 14
• Ike Kanji — Hostile classmate whose jealousy of Shinjitsu’s proximity to Kushida escalates into bullying, confrontation, and forum conflict. 18 19 23 36 37
• Ayanokouji Kiyotaka — A wary observer who suspects Shinjitsu is concealing his true nature and occasionally advises Ike’s group against reckless action. 20 24 37
• Horikita Suzune — A fellow Class D student whom Shinjitsu encounters early at the convenience store. He later becomes responsible for watching over her at Manabu’s request. 5 34

Story Role / Major Arcs

Enrollment and School Investigation

Shinjitsu enrolls in Class D, meets Kushida on the bus, and quickly begins investigating the school rather than integrating with his class. He gathers surveillance evidence, questions upperclassmen, and learns the strategic value of private points. 1 6 7

Point Accumulation Scheme

After understanding that 20 million points can buy an individual class transfer, Shinjitsu begins making cross-class deals. He works with Ryuen, Ichinose, and Class A representatives to profit from Class D’s expected decline, prioritizing his own transfer over Class D’s recovery. 14 16

Locker-Room Conflict and Swimming Competition

Ike’s group targets Shinjitsu over Kushida and attempts to provoke him in the locker room. Shinjitsu exposes Ike’s cowardice, displays his hidden strength, wins the swimming competition in 22.5 seconds, and becomes a more visible target for both admiration and hostility. 19 22 23

Karuizawa Incident

Karuizawa identifies Shinjitsu as the “Minotaur Warrior” and approaches him. When second-year students ambush them, he defeats all three attackers, records and stages the event to their disadvantage, then agrees to protect Karuizawa in exchange for her obedience as his “tool.” 25 26 27 30

Student Council and Forum Retaliation

Shinjitsu sells information to Nagumo and formally joins the Student Council. When Ike’s group publicly brands him a delinquent, Shinjitsu retaliates through the school forum, turning their tactics back on them. 32 36 37

Kushida’s Secret

After witnessing Kushida’s hidden personality, Shinjitsu gains leverage over her. Their confrontation reveals the crueler sides of both characters, with Shinjitsu using fear and implied exposure to establish control over their private dynamic. 38 40 42

Transfer to Class A

Shinjitsu accumulates the 20 million points required for an individual class transfer. His move from Class D to Class A provokes outrage among his former classmates, who accuse him of fraud and demand punishment. 45 48

Notable Quotes

“All failures are caused by the individual's lack of ability. As long as a person has enough ability, they can solve anything.” 12

“All friends are nothing more than that.” 12

“Become my tool.” 30

Trivia

• Shinjitsu lives in Room 404 of the student dormitory. 5
• Despite often acting as though he cannot remember names, he correctly remembers Ichinose Honami’s name after visiting Class B. 11
• His Teamwork Ability is rated D, in sharp contrast to his A ratings in academics, intelligence, judgment, and physical ability. 9
• He is the only first-year Student Council member when his status becomes known to Class D. 45