A secret sex movie of Misa Arisawa and her daughter’s boyfriend Hiroshi. He and Yuka have been in love for a while, and he often comes to her house to play. Eri is Yuka’s mother, she has raised Yuka alone since she was little. Because she is a single mother, Eri has not had sex for a long time. Seeing her daughter happy with her boyfriend makes her jealous. Hiroshi has been working as a porter since he was a student, which has given him a strong body. Eri is attracted to his body, so she does something extremely wrong… That is, seducing her daughter’s boyfriend! Hiroshi also secretly admires Eri’s body, so when she seduces him, he quickly agrees and their wrong relationship begins…