My stepfather's favorite food was my nipples... I was teased by a perverted old man who had been observing the growth of my breasts for 10 years until I climaxed... Reina Miyashita - Rena Miyashita

The movie revolves around the inappropriate and forbidden relationship between a stepfather and his stepdaughter, Rena. After the mother's death, the stepfather is left alone with Rena, who has grown into a young woman, and he struggles with his desires and the blurred lines of their relationship. As the story unfolds, the stepfather's actions become increasingly disturbing, leading to a dramatic and intense confrontation of their feelings and boundaries.