Tōma Akechi enters the protagonist’s life as a transfer student, reigniting a dormant bond from their shared elementary school days. As a child, he endured persistent bullying observed but unaddressed by the protagonist, who feared exposing psychic abilities. A critical moment arises when the protagonist secretly heals Tōma after a brutal attack. Though conscious, Tōma later confronts them, triggering a timeline where his accidental disclosure of their powers forces the protagonist to reset events and withhold the truth. Post-parental divorce, Tōma adopts the surname Akechi and shifts schools. His erratic, rapid cognition deflects telepathic detection, sparking the protagonist’s initial suspicion of him as a fellow psychic. Upon reuniting, Tōma adopts a methodical, detective-like demeanor, probing their past encounter through calculated tactics—interrogating peers, orchestrating scenarios like a sweet potato harvest to lure psychic proof—and relentlessly chasing answers, fraying social ties in the process. Sharp intellect, acute perception, and a habit of verbose, rapid-fire dialogue define Tōma, masking a core of earnest kindness. His tenacity eventually compels the protagonist to unveil their powers, entrusting him after a pivotal chain of events: temporary petrification, a rewritten timeline averting a school disaster tied to his past bullying, and a conscious choice to embrace vulnerability. Rooted in familial estrangement and surname shifts, Tōma’s return bridges childhood scars and present tensions. His transition from skeptic to confidant underscores a fraught alliance, balancing adversarial scrutiny with mutual recognition of concealed truths. The narrative positions him as both foil and catalyst, testing the protagonist’s resolve for secrecy while anchoring their connection in layered history and hard-won trust.