Tomohiko Kazami

Tomohiko Kazami is a student in Yomiyama North Middle School Third-Year Class 3 and one of Naoya Teshigawara’s closest childhood friends. His importance lies less in initiating the mystery than in becoming its most consequential false answer: Teshigawara interprets ordinary gaps in childhood memory as proof that Kazami is the Extra Person, attacks him, and nearly converts suspicion into murder. Kazami’s survival exposes the danger of treating uncertain signs as conclusive evidence in a class already governed by the Yomiyama phenomenon.

Identity and Place in the Class

Tomohiko Kazami belongs directly to the group whose records, memories, and social behavior are affected by the Extra Person’s presence. He is also positioned at the visible center of the classroom’s crisis. During Mr. Kubodera’s classroom suicide, Kazami sits in the very front row, shaking so violently that his seat seems to rattle. Blood sprays across his glasses, yet he does not wipe it away or leave his desk. Around him, classmates collapse, scream, or make strangled sounds, and his frozen reaction becomes one of the scene’s clearest images of collective shock.

The class’s attempts to manage the Yomiyama phenomenon also shape Kazami’s social environment. The initial strategy of treating Mei Misaki and Koichi Sakakibara as if they were “not there” is abandoned after increasing the number of excluded students to two produces no effect. Once Mr. Kubodera dies, classmates begin acknowledging Mei again without any formal announcement, showing how quickly the class’s emergency rules can dissolve when their apparent protection fails. Kazami is therefore part of a group whose ordinary relationships are repeatedly reorganized by fear and ritual.

Friendship and the Suspicion of Being the Extra Person

Teshigawara’s suspicion begins with his anxiety that the Extra Person may have accompanied the class during its summer activities. He asks who that person might be and wonders whether some small, visible sign could reveal the answer. His concern is not directed at Kazami immediately as an established enemy; it develops through an investigation into their shared past.

Teshigawara secretly questions Kazami about childhood experiences. Kazami cannot remember their secret base by the river, where they played as third-year elementary-school students, and does not recognize the memory of planning to cycle to the ocean during their fifth year before abandoning the trip outside town. Teshigawara treats these missing memories as suspicious rather than ordinary. He concludes that the real Kazami must have died long ago and that the Kazami now in the class is the Extra Person who returned in the spring.

This reasoning is fundamentally mistaken. The Extra Person is not a counterfeit who can be exposed by testing childhood memories. According to the explanations given by Mei Misaki and Tatsuji Chibiki, the dead person returns as the actual person, without awareness that they have already been a casualty. Forgetting or failing to recognize childhood experiences therefore cannot establish that someone is false, dead, or supernatural. Kazami becomes the victim of a conclusion drawn from circumstantial evidence that could have applied to anyone.

The Attack and Its Immediate Stakes

When Teshigawara acts on his belief, the confrontation becomes a physical crisis. After forcing his way toward a window overlooking the inner garden, he asks whether the others know anyone named Tomohiko Kazami. The question reveals that his target is not an abstract possibility but his own friend. Teshigawara admits that he has been investigating Kazami and believes he has discovered that the person before him is not the real Kazami.

Teshigawara’s fear turns into violence, but the available evidence never justifies the certainty with which he acts. Koichi Sakakibara recognizes two possibilities: Teshigawara may simply have identified the wrong person, or Kazami may still be alive because Teshigawara has not yet gone down to check what happened after the fall. The uncertainty is crucial. In a world where the class expects hidden deaths and altered memories, the demand to identify the Extra Person encourages action before facts have been verified.

The attack causes Kazami severe danger but does not kill him. His injuries include a sprained ankle and a substantial loss of blood from the impact to his head, yet medical testing finds no abnormality in his brain, and he suffers no lasting major injury. The episode thus reverses the apparent meaning of the attack: what looks like the elimination of the Extra Person is instead an assault on an innocent classmate.

Consequences and Narrative Significance

Kazami’s survival confirms the scale of Teshigawara’s misunderstanding. The supposed supernatural clue was merely a set of uncertain memories, and the supposed casualty was a living student. The incident exposes how the Yomiyama phenomenon does not merely threaten bodies; it distorts judgment by making coincidence, forgetfulness, and social irregularity appear like encoded signs.

Kazami’s friendship with Teshigawara also prevents the event from settling into a simple conflict between hero and villain. Teshigawara is terrified, convinced that he is responding to an existential threat, while Kazami is the person who bears the physical consequences of that conviction. After Kazami recovers, the account does not report how the two friends discuss the attack, but it suggests that their personalities make a lasting major conflict unlikely. The lack of a dramatic reconciliation keeps attention on the episode’s deeper damage: fear has made intimate knowledge unreliable and has turned a friend’s attempt to investigate into an act of violence.

Kazami consequently functions as a test of the class’s methods for controlling the disaster. The class seeks a definite identity for the Extra Person, yet its most confident identification produces a false accusation and near-fatal harm. His survival restores the distinction between supernatural casualty and ordinary victim, while leaving the class to confront how little certainty its rituals and theories can actually provide.