It's been a few months since Satsuki, who remarried her father, came to this house. Her son Ittetsu has developed a hatred for his "mother" since he left her mother fifteen years ago, and has refused to listen to her despite Satsuki's efforts to fit in. One day, a woman comes to visit Ittetsu. Satsuki receives a letter from the woman without knowing anything. However, that woman turns out to be Ittetsu's mother, Chisato. Ittetsu, who does not want to recognize the two mothers who suddenly appear, begins to humiliate them as lewd women.
