Tomomi Fujihira investigates the unsettling transformation of her friend Koizumi, whose sudden behavioral shift follows concerning interactions with a male teacher. Suspecting his influence, Fujihira confronts him directly, only for the teacher to divert the confrontation toward recent school thefts. He claims the culprit infiltrates classrooms after hours and insists on inspecting her belongings under the pretense of eliminating her as a suspect, framing the intrusion as procedural duty. This tense exchange exposes institutional power dynamics where authority is weaponized to subject students to invasive scrutiny. Her story underscores pervasive mistrust and systemic power disparities within educational institutions, anchored by her proactive defiance against manipulative structures.