Yuriko is an ordinary housewife. But she had a secret that she couldn't tell anyone. That was because she was forced to have physical relations with her son. At first, Yuriko thought that she was only with him once, but her son didn't think so and kept coming at her, so he gave in to her temptation and continued their relationship with her. She decides that this is no good and asks her husband to have a night with her, but he refuses, saying, ``She's tired.'' She started masturbating to release her distressed feelings, but her son found out...
