Overview

“I’m sorry for suddenly showing you such an embarrassing situation….And even more so, having sex with my son and feeling the way he feels….I’m a failure to be a mother…no…I’m a failure to be a human being….I’m sorry for letting this happen. , I have my own reasons..." Since the third anniversary of her husband's death has passed, Rie has decided to live with her son and his wife. Rie seems to have built a good relationship with her son and his wife, who both work together, because she does the housework, and they live happily together. However, Rie's body aches with loneliness without her husband, and she distracts herself by masturbating, which has become a part of her daily routine. Late at night, she was comforting her aching body that day, but her son was watching her. When Rie reaches climax with her self-comforting act, her son appears and inserts his hot erection into Rie's body, which she refuses to do. Rie, who had forgiven her body even though she was forced to do so, continued to act as requested by her son, but gradually Rie began to desire her son. At that time, something strange happened to Rie's body. Her period has started. Rie, who felt that she was finished as a woman, told her son, and she decided to end the relationship, but... “When my period stopped, we fell even further into the forbidden swamp…”