A son who can only see Keiko with erotic eyes after seeing her mother Keiko's masturbation. One day he finally takes action. He puts an aphrodisiac in Keiko's tea and forces her to lust and attack her. Although he resisted, there was no way he could match his son's power, and he was incontinent and was fucked as it was. Keiko who feels her guilt by crossing the line that should not be crossed with her son, but can not forget the pleasure of being fucked, and gradually drowns in her forbidden relationship. A perverted son who likes to urinate, a horny mother, and the future of the parent and child...
