Ena's mother remarried to a perverted old man who used to molest her. She tries to hold back for the sake of her mother's happiness, but she finds herself attracted to the man more than she expected. Her entanglement with Yoshimura was particularly erotic and exciting. Ena's body and pants scenes were also erotic, and the actress's performance was good. The scenes on the train were realistic and erotic. The story starts out feeling hopeless, but I was surprised by the unexpected happy ending. However, the pee drinking scene bothered me a little. Overall, the film was exciting and enjoyable with some laughs.