It's been a few months since Satsuki, who remarried his father, came to this house. His son, Ittetsu, hated his "mother" after parting from his mother 15 years ago, and even though Satsuki tried to get used to it, he refused to speak. One day, a woman visits Ittetsu. Satsuki receives a letter from the woman without knowing anything. However, that woman was Ittetsu's mother, Chisato. And Ittetsu, who does not want to admit the two mothers who suddenly appeared, surpasses them as a nympho woman.
