Monami, who lives with her son after her husband's death, is targeted by the landlord's heir, Katsuji, because of her large bust. Monami's part-time income is not enough to cover her living expenses, and she starts to fall behind on her rent. Although Katsuji claims to be collecting the overdue rent, from the beginning he was attracted to Monami's voluptuous body and approached her with his bad friend.
