Two mothers kept in captivity ~One child, two mothers, rape and incest~

It has been several months since Satsuki, who remarried her father, came to this house. Her son Ittetsu had a hatred for his ``mother'' after breaking up with his mother 15 years ago, and would not listen to Satsuki's efforts to fit in. One day, a woman comes to visit Ichitetsu. Satsuki receives a letter from the woman without knowing anything. However, that woman was Chisato, Ittetsu's mother. Then, Ittetsu, who doesn't want to acknowledge the two mothers who suddenly appear, begins to humiliate them as lewd women.