Mayu, a mother with a shy only son, Shinya. She has two friends visit her son, which is rare, and Mayu is happy that her son has made friends. However, at a later date, they reappeared, showing their bandaged arms and telling them, "Shinya assaulted me." Their gaze was directed at Mayu's plump big breasts... In order to atone for Shinya's sins, Mayu accepts their obscene demands one after another. ＃Group leader P
