Kanzaki Toru

Biodata

Feature	Value
Name	Kanzaki Toru (神崎透)
Gender	Male
Affiliation	Class D as a first-year; later Class 2-D and Class D, Third Year 2 75 84
Occupation/Role	Advanced Nurturing High School student; investigator of the Old System, reverse-evaluation representative, and records contributor 63 83
Status	Graduated from Advanced Nurturing High School with Class 3-D 85
First Appearance	The Bus 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Illustrated Guide awakening	4	His consciousness manifests Sakura Airi’s profile, including favorability, status, relationship path, and an improved Camouflage Technique reward. 4
Enhanced Observation	5	Gains the ability to observe Sakura’s behavior and emotional state from a distance, helping him understand the guide’s reward logic. 5
Perception Resonance	22	Receives a reward linked to Karuizawa Kei that lets him perceive others’ core implicit needs through her. 22

Background

Kanzaki enters Advanced Nurturing High School intending to remain unnoticed and make it through three years quietly. He is immediately skeptical of the school’s idealized reputation and recognizes that its generous point system ties every student’s welfare to Class D’s performance. 1 2

His low-profile approach changes when he intervenes on the bus to stop Yoshida from pressuring Sakura Airi. He continues helping her navigate the campus, then steps in again when second-year students corner Yoshida behind the gym. These actions expose him as more capable and involved than he wishes to appear. 1 2 4

Kanzaki gradually becomes one of Class D’s central information handlers. He forms a pragmatic partnership with Horikita Suzune, investigates Ryuen Kakeru’s network in Class C, gathers Old System records with Shiina Hiyori, and helps Ishizaki Daichi break from Ryuen’s control. 6 14 18 23 24

By the end of his first year, he has helped turn Class D’s conflicts, evidence, and cooperation into formally activated Old System clauses. He later serves as the agent and representative for the Reverse Evaluation Clause, assists with system implementation in Class 2-D, and helps preserve the handbook and clause index for younger classes. 53 62 63 76 83

At graduation, Kanzaki reflects that his original wish to stay unnoticed failed—but accepts that outcome after becoming a key contributor to Class 3-D’s legacy. 83 85

Appearance

Kanzaki deliberately cultivates the appearance of an unremarkable, low-energy student. He is commonly seen seated in the back row by the window, leaning lazily with half-open eyes and an expression that suggests a lack of motivation. 1 8 11

• Keeps his presence subdued to avoid drawing attention. 9 11
• Often watches others quietly rather than joining conversations. 3 7
• Zips his uniform up to his chin on cold mornings. 3
• Uses a calm, flat expression even during confrontations. 1 14

Personality

Kanzaki is cynical, observant, and unusually difficult to provoke. He distrusts anything presented as perfect, including the school itself, and instinctively looks for the hidden cost or mechanism behind outward appearances. 1 2

Although he prefers detachment, he does not ignore people in danger or distress. He helps Sakura without forcing her to change at his pace, supports Sudo when he is close to losing control, and gives Ishizaki a route out of Ryuen’s manipulation rather than treating him as an enemy. 2 20 21 23

He approaches conflicts through information, timing, and evidence rather than force. Kanzaki studies behavior patterns, archives records, notices inconsistencies in testimony, and uses school procedures to counter opponents who exploit loopholes. 3 14 27 33

His leadership style is understated. He delegates according to each person’s strengths, values cooperation over personal credit, and increasingly accepts that trust—not simply efficiency—is essential to sustaining a group. 17 49 70

Abilities & Skills

Illustrated Guide

Kanzaki possesses a cognitive “illustrated guide” that records certain girls he develops connections with, tracks their favorability, and grants rewards at documented thresholds. 4 6 14

• First records Sakura Airi as “Observer Hidden Under the Brim,” with a favorability value of 68. 4
• Registers Horikita Suzune after their partnership begins, though her page initially lacks a completed favorability value. 6
• Tracks later changes in Sakura, Horikita, and Karuizawa’s favorability. 14
• Requires contact and relationship development before a person’s entry can fully manifest. 6

Camouflage Technique

A reward unlocked through Sakura’s guide entry, allowing Kanzaki to regulate how noticeable he is in a crowd. 4

• Lets him remain visible enough for Sakura to use him as a point of reference without attracting unnecessary attention. 9
• Supports his broader strategy of appearing ordinary while observing classmates. 7 11

Enhanced Observation

Kanzaki gains Enhanced Observation after the guide’s early rewards, sharpening his ability to read behavior and emotional states. 5

• Notices subtle shifts in Sakura’s anxiety, appetite, habits, and willingness to communicate. 5 19
• Identifies social divisions, suspicious behavior, and strategic relationships within Class D and Class C. 7 13
• Detects inconsistencies in disciplinary files, testimony, handwriting, and timelines. 27 38

Perception Resonance

A reward associated with Karuizawa that enables Kanzaki to perceive others’ core implicit needs through her. 22

• Helps him recognize the value of Karuizawa’s social network and her growing desire to participate in Class D’s affairs. 22
• Complements his evidence-based approach by giving him greater insight into personal motivations. 22 23

Investigation and Information Analysis

Kanzaki is a methodical investigator who compiles evidence before acting. 3 27

• Researches special exams, class-point changes, expulsion patterns, and old school regulations in the library. 3 7 17
• Investigates Ryuen’s influence network, including Ishizaki, Kondo, second-year intermediaries, and Disciplinary Committee records. 13 14 24
• Finds altered testimony and forged evidence in the Old School Building archives. 27 28
• Encrypts and distributes evidence trails to trusted allies rather than exposing information prematurely. 33

Strategic Coordination

Kanzaki can organize people with incompatible backgrounds into functional teams. 17 49

• Guides his first cross-class group by recognizing Sakura’s visual work, Shiina’s research, Yukimura’s academics, and Hamaguchi’s interpersonal strengths. 17
• Leads Group 12 during the uninhabited-island exercise, assigning roles and preparing the final collaborative defense. 49
• Supports Class D’s affirmative case during the Class Joint Debate Tournament through sourced data and factual argument. 69
• Mentors first-year students in transparent data recording and correct citation procedure during cross-grade collaboration. 77 78

Equipment / Records

• Personal notebook — Used to track class-point patterns, special-exam clues, Old System clauses, and strategic observations. 7 41 53
• Student terminal — Used for school records, encrypted evidence, group communication, and data sharing. 2 33 77
• Old System Supplement Handbook — A continuing archive jointly keyed to Kanzaki and Shiina after the Old System clauses become permanent. 75
• Gray archive folder — Holds the accumulated “&” records, guarantees, clause materials, and later succession documentation. 74 83

Relationships

• Sakura Airi — His earliest and closest connection at the school. Kanzaki protects her from Yoshida’s pressure, supports her social growth without forcing her, and relies on her observation and photography during investigations. 1 2 20 28
• Horikita Suzune — Information-exchange partner and long-term strategic collaborator. Their practical alliance develops into mutual trust while they counter Ryuen and advance the Reverse Evaluation Clause. 6 14 24 63 74
• Shiina Hiyori — Research partner, archivist ally, and fellow Old System specialist. They investigate old records, compile clause indexes, and finalize institutional succession materials together. 18 39 53 83
• Karuizawa Kei — Initially seeks Kanzaki’s advice on approaching Sakura; later becomes an intelligence ally against Ryuen and the source of Perception Resonance. 11 22 25
• Ishizaki Daichi — Begins as a Class C operative tied to Ryuen. Kanzaki identifies Ishizaki’s vulnerability, offers him a path out, and later works alongside him in Group 12 and Class D. 23 24 44 63
• Sudo Ken — Kanzaki helps him avoid Ryuen’s attempts at provocation and later supports his role in Class D’s debate and team activities. 21 69
• Ryuen Kakeru — Initially a dangerous adversary who warns Kanzaki against interference. Their conflict evolves into a more restrained relationship involving formal evidence, observation data, and limited cooperation. 14 39 69
• Kushida Kikyo — Kanzaki initially shares Horikita’s suspicions toward her social perfection. He later learns that Kushida was the anonymous “&” helper and accepts her support in his reverse-evaluation role. 6 55 63
• Sakagami — A retired teacher whose Old System records guide Kanzaki’s investigations. Sakagami indirectly entrusts Kanzaki with preserving and continuing the system’s documentation. 18 55 83

Story Role / Major Arcs

Arc	Chapters	Kanzaki’s role
Arrival and Class D assessment	1–12	Enters Class D, aids Sakura and Yoshida, discovers the guide, and begins identifying hidden risks in the school’s systems. 1 4 7 12
Alliance with Horikita and conflict with Ryuen	13–39	Partners with Horikita, investigates Class C’s manipulation, persuades Ishizaki to cooperate, and helps expose altered disciplinary evidence. 13 23 27 39
Old System special exam	41–53	Leads Group 12 through inter-class collaboration and the uninhabited-island tasks, contributing to the activation of mutual-trust weighting. 42 49 52 53
Reverse Evaluation and first-year conclusion	55–74	Accepts the role of Reverse Evaluation Clause agent, supports Class D’s system reforms, and helps Class D reach second place by class points. 62 63 69 74
Second-year mentorship and succession	75–83	Assists with Old System implementation, mentors first-years, contributes to Class 2-D’s highest-scoring assessment, and transfers the institutional handbook to Class 1-D. 76 78 81 83
Third year and graduation	84–85	Helps complete the final inheritance archive, graduates with Class 3-D, and reflects on how far he moved beyond his original wish to remain unnoticed. 84 85

Notable Quotes

“Can't you tell she doesn't want to talk to you?” 1

“You won't go down with him. You're on his list, but you're still in our folder.” 24

“Didn't happen. But that's okay.” 83