Kaname Nojima, a high school student and police officer’s son, balances a friendly nature with sharp intellect and maturity surpassing his peers. His bond with classmate Tooru Kotake anchors their shared school life, while unresolved feelings linger for Fumika Mikawa, a former junior high classmate whose startled rejection of his confession masked deeper complexities. Three years before the central narrative unfolds, Kaname learns of Fumika’s involvement in shooting her abusive father, Kirameki Mikawa—an event haunting his perception of her.

Reuniting with Fumika as a shigofumi mail carrier, he notices her uncanny resemblance to his past crush, sparking an investigation into her fractured history. Partnering with Natsuka Kasai, another junior high peer, he traces Fumika’s trauma to childhood abuse by Kirameki, culminating in dissociative identity disorder. When Kirameki resurfaces to attack Fumika, Kaname intervenes with decisive force, subduing him and securing him in confinement—a visceral display of protective resolve.

Post-conflict, Kaname remains a steadfast presence at Fumika’s hospital bedside as she recovers, his loyalty and quiet affection undiminished. His relentless pursuit of truth, driven by concern and lingering emotions, navigates the ethical shadows of her fractured identity and trauma. Through collaborations, confrontations, and quiet vigilance, Kaname’s actions weave curiosity, empathy, and a steadfast commitment to unraveling the scars binding Fumika’s past and present.