Hanyu is an only child living with his mother, Maya. One day, Hanyu's friend Saito from their student days came to visit. Saito, who had been harboring sexual interest in Maya, took advantage of Hanyu's absence and raped her. Despite feeling guilty for having a physical relationship with her son's friend, Maya's body responded to the sex with a young man after a long time... The actions of these men, desperate for sex, escalated day by day...
