Hitomi Kameyama is a member of the Kameyama family, locked in a power struggle with the Ootori family over control of Ootori Academy. She occupies a role at the institution and enters the conflict when students face supernatural assaults—ranging from tentacles and demons to a masked attacker. Her intervention shields Mao Ootori during the masked man's assault, confirming her active stance against these threats. These events unfold amid the academy's sinister occurrences, including sexual assaults and demonic rituals intertwined with the familial feud.