52-year-old Ayano begins a new job as a care worker, leading to a reunion with a classmate she hasn't seen in decades. The classmate now uses a wheelchair—and was once the victim of Ayano's bullying. Harboring long-standing resentment, he forces her to submit to his lewd demands. Torn between guilt and desire, Ayano's mind spirals into depraved madness as arousal overwhelms her, her body dripping with arousal even as her soul succumbs to twisted lust.