In order to rehabilitate their son, who had to repeat a year of university and was fired from his part-time job due to excessive masturbation, his mother Reiko and father come up with the unexpected idea of 'no masturbation'! However, her son's behavior has been getting more and more abnormal with each passing day since he started abstaining from masturbation... If he continues like this, will he commit a sexual crime? Worried about her son's future, Reiko tries to get him to start masturbating again, but it doesn't go well... Finally, she decides to release her son's sperm with her own hands.