Eriko, an educational mom, hates being lewd. He advises his son not to play with strange brats and sends him to school. One day, she secretly takes away a erotic book that had been lying down in front of the entrance and masturbates. But it was all a trap set up by a bad guy! Eriko is threatened by a kid for masturbating and makes sexy requests. Eriko, who hasn't had sex with her husband for a while, has a shota cock awakens her pervert's true nature and becomes addicted to her secret asshole...