A story about two mothers and children. Tatsuo Kondo, a son who goes to a university in Tokyo and lives alone. Due to the renovation of his house, his cousin Yasuhiro Yabe and his aunt Hisae Yabe are living in his mother Ikumi Kondo's house. In other words, he lives in Tatsuo's parents' house. One day, Tatsuo went home with her, but her mother couldn't help but sexually arouse her. At the same time, Yasuhiro also has sex with his mother. Two sons who have seen each other's mother and child incest carry out an obscene plan...
