Due to his father's sudden assignment overseas, Kenichi is forced to live alone with his new mother, Chisato. Kenichi spends his time frustrated with the beautiful Chisato. And Chisato who is not distracted by loneliness while her husband is away. The two have a close relationship to distract from their loneliness... Mutual masturbation that exposes each other's stupidity on the sofa, and forbidden vaginal cum shot in sex! !