At her part-time job at a convenience store, Nanami, a single mother, witnesses a shoplifting incident. However, the culprit turns out to be her son's classmate, who instead traps Nanami and threatens her. The mischievous boy, aroused by the voluptuous Nanami's body, repeats the act of molestation with his friends. Nanami endures the escalating demands. However, the humiliation turns into pleasure, and the kind-hearted mother falls into becoming a submissive sex slave to the young boys.