Kazehara Tetsu

Biodata

Feature	Details
Name	Kazehara Tetsu (枫含原彻)
Alias(es)	Kyougoku Makoto (disguise); Kazuya; “Kagihara” (alternate rendering used in passages) 28 97 342 448
Gender	Male 377
Affiliation	Kōto Ikusei Kōtō Gakuin; Class A, later Second Year Class A; Kagihara Zaibatsu 2 342 377
Occupation/Role	Student; System user 1
Status	Active 587
First Appearance	Chapter 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Initial System loadout	1	Arrives at the academy with a system, 100 points, and the abilities Basic Combat Skills, Master Chef, and Polyglot. 1
Grandmaster of All Chess	11	Purchases and equips the skill for 250 points; gains comprehensive chess knowledge, including openings, tactics, endgames, and positional judgment. 11
Electronics Repair (Proficient Level)	62	Purchases the skill and uses it to restore Sakura Eri’s damaged camera. 62
Crushing Level combat strength	457	Demonstrates overwhelming power against Tsukishiro Takuya and Yagami Takuya, anticipating their coordinated attack and defeating both. 457

Background / History

Kazehara is a reborn individual who enters Kōto Ikusei Kōtō Gakuin with a point-based system that can grant skills and items. He joins Class 1-A and immediately adopts a detached observer’s role, choosing a middle-back window seat from which to study his classmates. 1 2

During the entrance ceremony, he singles out the outwardly unremarkable Ayanokoji Kiyotaka as a “hidden protagonist,” drawing Sakayanagi Arisu’s interest. His early actions establish a pattern of gathering leverage: he records Kamuro Masumi shoplifting, preserves both original and edited footage through a Hidden Account, and plans to use the evidence to control her. 5 6 7

Although treated as a Class A figurehead by others, Kazehara does not define himself through class loyalty. Katsuragi Kouhei identifies him as an uncontrollable variable whose interests do not fit neatly into ally-or-enemy categories. 28

Kazehara is the young master of the Kagihara Zaibatsu. This background becomes known to Tsukishiro Tokinari during their confrontation over Ayanokoji and the White Room. 342 377

Appearance

Kazehara has dark red hair, an athletic build with firm but not excessively bulky muscles, and an outwardly ordinary appearance that belies his physical power. 160 387 448

• His hands appear unremarkable despite being capable of crushing a blade through grip strength alone. 387
• He is described as notably handsome by Amasawa Ichika. 377
• During island exams, he commonly carries a backpack containing practical supplies and electronic devices. 405 429

Personality

Kazehara is calm, observant, and difficult to read. He habitually studies people’s motivations, weaknesses, and behavioral patterns before acting, whether he is identifying Ayanokoji’s concealed nature, exposing Kushida’s façade, or predicting Tsukishiro’s surveillance. 5 150 342

He is also manipulative and pragmatic, readily using blackmail, deception, and coercion to create useful arrangements. He considers strength and survival natural justifications for dominance, encapsulated by his response to Horikita Manabu’s concerns about the school’s purges. 6 7 177 223

Despite this detachment, Kazehara can be protective toward people he has accepted into his sphere. He checks on Karuizawa Kei’s safety, promises Kushida justice against Yagami, and tends Amasawa’s injured arm after defeating her. 179 377 447

His confidence occasionally becomes playful vanity. He enjoys Sakayanagi affirming that he is the school’s strongest student and gives deliberately cryptic advice when asked about his training. 160 343

Abilities & Skills

System

Kazehara’s private system displays abilities, quests, points, and a shop. It awards points for accomplishments and allows him to purchase skills or items that enhance his capabilities. 1 11 342

• Began his academy life with 100 system points. 1
• Earned 500 points for completing the task to defeat Class C. 342
• Uses purchased skills for practical goals rather than relying solely on natural talent. 11 62

Physical Combat

Kazehara possesses overwhelming strength, speed, reactions, and durability. He has repeatedly defeated opponents who expected a physical advantage, including Ryuen Kakeru, Hosen Kazuomi, Amasawa Ichika, Tsukishiro Takuya, and Yagami Takuya. 97 203 377 455 457

• Overpowered Ryuen in the forest and later threw him across the Sports Festival court. 97 158
• Blocked Hosen’s full-force flying kick without stepping back, then threw him into a tree. 454
• Dodged point-blank gunfire, disarmed Tsukishiro Takuya, and shot his own palm to test his bone hardness. 459
• Can subdue attackers with minimal movement, such as forcing Utsunomiya Riku into a half-kneel by controlling his wrist and arm. 442
• He admits that his advantage stems largely from system-granted attributes rather than formal martial-arts theory. 222

Athletic Performance

Kazehara’s speed, stamina, coordination, and explosive strength allow him to dominate competitive events and traverse difficult terrain rapidly. 154 161 405

• Won the 100-meter dash in 10.51 seconds while appearing to retain further capacity. 154
• Cleared hurdles while steadily widening his lead over Kanzaki Ryuji. 155
• Won the Two-Person Three-Legged Race with Hashimoto Masayoshi through synchronization and stamina. 161
• Crossed one kilometer of steep island terrain from D9 to B9 in three minutes to claim first arrival and 11 points. 405
• His sole-group status prevents a “bucket effect” during team-based island tasks. 409

Academic Ability

Kazehara is credited with perfect Academic Ability and an A+ Physical Ability rating on the OAA, placing him among the strongest students in the second year. 368

• Finished a Mathematics Comprehensive Ability Test in 15 minutes for first place. 406
• Reads extensively in the library at a pace that impresses Katsuragi. 28
• Lacks broad popular-culture knowledge and performs poorly in a music-recognition task. 419

Chess

After purchasing Grandmaster of All Chess, Kazehara becomes a formidable chess player capable of analyzing openings, tactical combinations, and positional exchanges instinctively. 11

• Regularly plays international chess with Sakayanagi Arisu. 24
• Wins more often than he loses, though he sometimes deliberately leaves openings for Sakayanagi to exploit. 24
• Coordinates with Sakayanagi in the Commander Tower match intervention against Ayanokoji. 339

Technical Skills and Evidence Handling

Kazehara uses technology to collect leverage, evade surveillance, and erase evidence. 6 62 429 460

• Recorded Kamuro’s theft, edited the footage, and uploaded copies to a Hidden Account. 6
• Purchased a Formatting System to avoid academy monitoring of his files. 6
• Repaired Sakura Eri’s camera, deleted incriminating images, and overwrote the deleted data with meaningless shots. 62
• Damaged his electronic watch to create a believable loss of tracking signal during the island exam. 429
• Disposed of a gun, gloves, and other evidence in the sea after the confrontation with Tsukishiro Takuya and Yagami. 460

Equipment / Weapons / Items

• System interface — Displays abilities, quests, points, and the shop. 1
• Smartphone and Hidden Account — Used to preserve and distribute edited evidence of Kamuro’s theft. 6
• Formatting System — Purchased to conceal his activity from academy surveillance. 6
• Electronic watch and tablet terminal — Used for island maps, task registration, rankings, and radar tracking. 407 409 450
• Backpack and survival supplies — Prepared for the uninhabited-island exam. 405
• Walkie-talkie — Given by Sakayanagi and used to request intelligence on his pursuers. 429
• Finger wraps — Worn while confronting Hosen to avoid leaving fingerprints. 454

Relationships

• Sakayanagi Arisu — Chess rival, strategic partner, and close confidante. She supports his plans, aids him during the island exam, and recognizes him as a serious opponent. 5 24 339 429 497
• Ayanokoji Kiyotaka — A subject of Kazehara’s early interest and a rival whose “score” Kazehara insists on settling personally. They later agree to mutual assistance against external threats. 5 342 575
• Ryuen Kakeru — Repeated combat rival. Kazehara defeats him multiple times before offering him a deal to join his group and pursue his goals. 97 203 449
• Kamuro Masumi — Initially controlled through evidence of her shoplifting; their relationship later becomes private and intimate. 6 24
• Horikita Suzune — An uneasy ally whom Kazehara assists and observes as she develops into a more independent strategist. 177 194 225
• Kushida Kikyo — Kazehara discovers her betrayal of Class D and uses knowledge of her secret to keep her under pressure and control. 149 150 177
• Karuizawa Kei — A dependent associate whom Kazehara protects from possible Class C interference. 179 298
• Amasawa Ichika — A curious junior and sparring opponent. Kazehara effortlessly subdues her White Room-trained attacks, though their interactions develop mutual interest and respect. 376 377
• Onodera Kayano — A cordial rival and later Sports Festival partner; they agree to enter high-value doubles events together. 414 552
• Horikita Manabu — A wary senior who recognizes Kazehara’s influence over Suzune and discusses Student Council threats with him. 223 225 280

Story Role / Major Arcs

School Opening and Class A

Kazehara enters the academy, receives his system’s initial reward, and begins observing Class A from the back of the classroom. He rapidly identifies both Ayanokoji and Sakayanagi as people worth watching. 1 2 5

Kamuro Evidence Scheme

After witnessing Kamuro shoplifting, Kazehara creates protected video evidence and offers it to Shannei Chunshu as bait. The scheme is designed to exploit Shannei’s vanity and create chaos through Kamuro’s compromised position. 6 7

First Uninhabited Island and Sports Festival

Operating under the Kyougoku Makoto disguise, Kazehara infiltrates the forest, observes Ayanokoji, and easily defeats Ryuen. He later dominates the Sports Festival through sprinting, hurdles, team events, and a decisive victory over Ryuen’s Class C blockade. 97 154 155 158 161

Kushida and Ryuen Conflicts

Kazehara uncovers Kushida’s dealings with Ryuen and her hostility toward Horikita. He subsequently defeats Ryuen and his allies in a one-sided restroom brawl after Ryuen threatens someone close to him. 149 150 203 204

White Room and Student Council Affairs

Kazehara supports Sakayanagi’s match intervention against Ayanokoji, then exposes Tsukishiro Tokinari’s attempt to expel Ayanokoji. He makes clear that he will not permit anyone to remove Ayanokoji before their personal conflict is resolved. 339 342

Second Uninhabited Island Exam

Kazehara begins the second island exam as a solo group and rapidly builds a commanding point lead through speed, academic tasks, combat events, and efficient route selection. By the sixth day, his 436-point score makes him a target for Nangong Ya’s pursuers. 405 406 409 425 427

He evades pursuit by faking a fall and damaged tracker, then confronts a series of challengers: Utsunomiya, Ryuen, Hosen, Tsukishiro Takuya, and Yagami. After overpowering Tsukishiro and Yagami, he removes the evidence and engineers circumstances that implicate Tsukishiro. 429 442 449 455 457 460

Later Plans

Kazehara continues pursuing Class A’s advancement while considering how Horikita’s Student Council position could be used to influence outcomes. He agrees to assist Ayanokoji against a looming threat despite the risks of working together. 575

Notable Quotes

“Might Makes Right.” 223

“Before that happens, no one is allowed to take him away from my sight, whether it’s you or that so-called father of his.” 342

Trivia

• Kazehara’s dialogue and narration occasionally use the surname Kagihara, including references to the Kagihara Family and Zaibatsu. 28 342
• He is pragmatic with personal points, favoring durable, functional goods over premium brands or luxury packaging. 301
• Horikita Suzune calls him a “Monster” because of his island-exam scoring pace. 425
• He can perform exceptionally in physical and academic tasks yet struggles with music-recognition questions due to limited popular-culture knowledge. 419