My secret is that my girlfriend's mother is extremely sexual

Hiroshi and Yuka have known each other for a while, and they often visit his house. Eric is Yuka's mother, and she raised Yuka alone since she was young. As a single mother, I have loved her for a long time. She seemed jealous when she saw her daughter happy with her boyfriend. Hiroshi has worked part-time as a porter since he was still a student, helping him have a strong body. Thorny was attracted to him, so what did he do so wrong he cheated on his daughter's girlfriend Hiroshi also secretly admired Eri's body, so when he teased her, he quickly confessed and started an abusive relationship