Aya Akiyama is a shaved-pussy girl with a slightly loose vagina, who's recently become obsessed with her private tutor. Trying to uncover his personal life, she lowers the zipper of her hoodie and flashes her small breasts to seduce him. But Aya also ends up having sex with the neighborhood older boy and the air conditioner repairman who came by her house. Behind her increasingly promiscuous behavior are the hidden influences of her father and her homeroom teacher. As her relationship with the tutor deepens, her actions grow more reckless. With the boundaries between family, school, and romance blurring, Aya gradually loses control over herself—her desires and emotions spiraling beyond anyone's reach.