Minase lives alone with her son while her husband is away for work. Recently, Yuji, her son's classmate, moved in next door. Feeling sympathy for Yuji's lonely family situation, she reaches out despite her reservations. However, Yuji—someone who bullies her son at school—takes advantage of her kindness, overpowering and raping her to satisfy his desires. Though conflicted, Minase gradually finds herself drawn into Yuji's words as their physical relationship continues. Subjected to daily assaults and torment, her body grows increasingly sensitive, undergoing profound changes. The pleasure she experiences at Yuji's hands slowly takes control of both her body and mind.