This role-play is performed by adults. Sex education for my cute son. A mother in her 50s opens a forbidden door [Episode 1] My son begins to masturbate while thinking of his mother. When the mother sees this, she helps him masturbate. [Episode 2] A mother who has always been worried about her son who is at home. Her son's sexual gaze towards Ryoko, who was feeling anxious [Episode 3] A mother sees her son masturbating. The son, whose tag has come off, presses on his mother regardless of where he is [Episode 4] The mother feels sorry for her son, so she gives him sex instructions to get him used to being around women.