Minase, living with her son while her husband is away on a solo assignment. She inadvertently reaches out to Yuuji, her son's classmate who recently moved next door, due to his lonely family environment... Yuuji, who bullied Minase's son at school, takes advantage of her kindness and forces himself on her according to his desires. Having a physical relationship with her son's classmate, Yuuji further pushes and torments the troubled Minase. As her body continues to be developed through daily humiliation, her body begins to wet her crotch with secret expectations...