A mother and daughter (Maya) move into her stepfather's house. The new father greets the daughter while gazing at her body with lewd eyes. The daughter notices this and becomes suspicious. One night, the daughter peeks at the couple's lovemaking and ends up meeting her stepfather's eyes, which makes her feel awkward. The next day, the daughter comes home from a sudden shower with her uniform soaked, and her stepfather wipes her body and rapes her. However, Maya's crotch is wet... From then on, every night, the two of them sneak away from the mother's eyes and engage in a forbidden physical relationship...