Chihaya Rei

Biodata

Feature	Information
Name	Chihaya Rei (千早厉)
Alias(es)	“Passing ally of justice”; “Torture God”
Gender	Male
Affiliation	Advanced Nurturing High School; Class D
Occupation/Role	Student; band musician; information seller
Status	Active
First Appearance	Chapter 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Torture God-Person System activated	1	A system that rewards Rei with Torture Points for tormenting designated “god-people”; ordinary people yield fewer points.
AI-Level Chess Mastery	20	Unlocked after reaching 100% torture progress through Hirata Yousuke; grants chess ability described as AI-level.
Ultimate Martial Artist	53	Unlocked after reaching 100% torture progress through Ryuen Kakeru; grants ultimate-level combat ability.

Background / History

Rei enrolled at Advanced Nurturing High School while deliberately entering Class D. His band activities had previously caused him to miss school, which he believes may have contributed to that placement. He has no interest in leading Class D toward a higher rank and instead pursues the ambitions of a “Torture God.” 1 3 24

At the start of the school year, Rei activated the Torture God-Person System. He treats interpersonal conflict as both entertainment and an opportunity to earn Torture Points, though he frequently frames his interventions as justice. 1 4 5

He became involved in Kamuro Masumi’s theft and Sakayanagi Arisu’s attempted blackmail, using his own recording and the school’s point system to invalidate the theft. The incident brought him into contact with both Class A students and began Sakayanagi’s interest in him. 4 5

Appearance

Rei is described as handsome, tall, and physically well-built. His muscular definition is noticeable beneath his clothing, leading Karuizawa Kei to assume that he is exceptionally capable in a fight. 13

• Tall, well-proportioned build. 13
• Noticeable muscular definition. 13
• Considered good-looking by several students. 13 27

Personality

Rei is confident, calculating, and openly amused by other people’s discomfort. He habitually provokes others, identifies vulnerabilities, and turns personal secrets or school rules into leverage. 1 7 44 67

Despite his cruelty, he can be attentive and practically helpful. He encourages Sakura Airi to face others more confidently, prevents Kamuro’s theft from becoming a blackmail tool, and trains Karuizawa Kei to develop the ability to protect herself rather than depend on him. 3 5 14 16

He has high standards for friendship and values resolve, self-reliance, and decisive action. Rei harshly criticizes people he sees as passive or overly gentle, including Karuizawa, Hirata, and Ichinose. 13 20 49

Abilities & Skills

Torture God-Person System

Rei possesses a system that awards Torture Points for tormenting people, particularly individuals he considers “god-people.” Reaching 100% torture progress unlocks random rewards. 1 20 53

• Can gain points from psychological pressure, humiliation, and physical confrontation. 15 20 49 53
• Ordinary targets provide fewer points than “god-people.” 4
• Uses long-term interpersonal pressure to continue earning points, as with Karuizawa’s training. 15

Strategic Manipulation

Rei gathers leverage, predicts motives, and manipulates conflicts among students and classes for his own advantage. 4 10 35 64

• Used evidence and private points to resolve Kamuro’s theft while forcing Sakayanagi to abandon her leverage. 5
• Correctly identified Class D’s looming points crisis by observing students relying on free meals. 7
• Pressured Sakayanagi into providing 500,000 points for Ken Sudo’s rescue. 44
• Extorted all 12 million of Nagumo Miyabi’s personal points using a compromising recording. 67

Information Gathering

Rei collects recordings, photographs, contacts, and rumors to gain influence over other students. 4 10 15 56 61

• Recorded Sakayanagi’s coercion of Kamuro and Horikita Manabu striking Horikita Suzune. 4 31
• Obtained and used a recording revealing Kushida Kikyo’s hidden personality. 56
• Received photographic evidence of Class C confronting Shibata So from Sakura Airi. 61
• Planted a voice recorder on Ichinose Honami, later using its recording against Nagumo. 66

AI-Level Chess Mastery

A system reward that allows Rei to play chess at an AI-level standard. 20

• Defeated Sakayanagi Arisu in chess despite her professional training and aggressive opening strategy. 58

Ultimate Martial Artist

A system reward granting Rei ultimate-level martial ability. 53

• Easily threw Ryuen Kakeru during their confrontation. 53
• Defeated Ryuen severely enough that he took a week of leave and returned visibly injured. 53 56
• Previously possessed strength and self-taught combat experience before receiving the skill. 53

Musical Talent

Rei has participated in more than one band and can play multiple instruments. He is known as a drummer and keyboardist, and he also sings. 3 12 24

• Performed one of his band’s songs during karaoke, impressing Karuizawa’s group. 12
• His band experience helps him connect with Sakura and Ichinose. 3 24

Equipment / Items

• Voice recorders — Purchased for gathering evidence; one was planted on Ichinose and used against Nagumo. 15 66
• Digital camera — Purchased after acquiring Torture Points from Karuizawa. 15
• Spare room card — Obtained to prevent easy access to his dorm room. 6
• Pointer — Used during Karuizawa’s training as an intimidation tool. 22

Relationships

• Horikita Suzune — Classmate and aspiring friend. Rei initially provokes her over her self-absorption, later gives her advice and assists her against Kushida. 1 34 56
• Ayanokoji Kiyotaka — Classmate whom Rei compares to a “human-machine” after a brief elevator conversation. 6
• Sakura Airi — Desk mate and fan of Rei’s band. Rei encourages her confidence and later relies on her photographs for information. 3 61
• Karuizawa Kei — Student Rei trains in self-defense after rejecting her request to become dependent on him for protection. 13 14 16
• Kamuro Masumi — Class A student whom Rei saves from Sakayanagi’s blackmail; she later offers him private points in repayment. 5 22
• Sakayanagi Arisu — Class A rival who regards Rei as an opponent or amusing toy. Their relationship is marked by chess matches, schemes, and mutual attempts to outmaneuver the other. 22 35 58
• Kushida Kikyo — Classmate with whom Rei has a mutually exploitative relationship. He holds evidence of her hidden personality and reveals it to Horikita. 10 40 56
• Shiina Hiyori — Rei’s reading buddy and a concerned ally who warns him of Ryuen’s likely retaliation. 31 54
• Ichinose Honami — Friendly Class B contact and collaborator. Rei advises her on rejecting Shiranami and later works with her against Nagumo. 24 49 64 67
• Shiranami Chihiro — Class B student Rei confronts over her feelings for Ichinose, persuading her to reconsider them. 51
• Ryuen Kakeru — Rival from Class C. Rei torments and defeats him physically, while Ryuen attempts to undermine Rei’s influence in Class D. 53 54 56
• Nagumo Miyabi — Student Council Vice President whom Rei blackmails with a recording, taking all 12 million of Nagumo’s personal points. 66 67

Story Role / Major Arcs

Class D Enrollment and Early Schemes

Rei enters Class D, clashes with Horikita, befriends Sakura, and investigates the school’s private-point system. He begins building influence through observation, provocation, and information gathering. 1 3 7 10

Kamuro and Sakayanagi Incident

After witnessing Kamuro steal beer and Sakayanagi attempt to blackmail her, Rei records the encounter. He resolves the situation by purchasing the right to temporarily remove the beer from the store, nullifying the theft and forcing Sakayanagi to delete her evidence. 4 5

Karuizawa’s Special Training

Karuizawa asks Rei to pose as her boyfriend and protect her from future bullying. Rei rejects her dependency, then becomes her trainer, pushing her through physical conditioning and practical fighting instruction. 13 14 16 22

Midterms and Class D Influence

Rei considers using the midterms to remove Class D’s weakest students, but Sakayanagi disrupts the plan by supplying answers. He later secures 500,000 points from Sakayanagi to prevent Sudo’s expulsion. 35 36 44

Class B Partnership and Shiranami Conflict

Rei forms a closer connection with Ichinose and agrees to help her reject Shiranami’s confession by acting as her fake boyfriend. He later confronts Shiranami directly and persuades her to question the nature of her feelings. 49 51

Conflict with Ryuen

Rei is exposed as an information seller and becomes Ryuen’s target. After torturing Ryuen to full progress, he gains Ultimate Martial Artist and defeats Ryuen in combat, increasing his notoriety across the grade. 53 54 56

Nagumo Blackmail

Rei and Ichinose obtain a compromising recording of Nagumo. Using the threat of exposure and the potential loss of Nagumo’s Student Council ambitions, Rei forces him to surrender all 12 million of his private points. 66 67

Notable Quotes

“I am merely a passing ally of justice; there is no need to take me to heart.” 4

“Karuizawa Kei, someone who devalues herself like this really makes me feel bored!” 13

“All of it.” 67

Trivia

• Rei calls Sakayanagi Arisu “Sakayanagi-cat” because her faint smile reminds him of a plotting white cat. 4
• He deliberately mispronounces Sakayanagi’s name as “Sakayanagi Sakayanagi” to tease her. 36
• Rei states that he has never been in a relationship, despite widespread rumors about his interactions with girls. 49