A newly appointed teacher, Anzai, comes to the rescue of her childhood friend and fellow teacher, Kitagawa, who is being mugged by students, and ends up being raped by some delinquents out of spite. Things escalate, and she is appointed the swimming club advisor, and the delinquents make her wear a swimsuit and use her as a sex toy. The delinquents are not satisfied, and they show Kitagawa how they have raped Anzai, and the teacher, along with Kitagawa, are gang-raped, as he becomes erect at the sight of Anzai's developed breasts. The woman with the divine breasts is finally in a full-fledged rape drama!