Yuko’s husband leaves their son’s entire education to her, while the stress of entrance exams has driven the boy to shut himself away. Forced to shoulder everything alone, Yuko is close to breaking down. Then Ozawa, her son’s homeroom teacher, comes for a home visit. His kindness unleashes all the emotions Yuko has kept bottled up, and Ozawa instinctively pulls her into his arms. Pressing their bodies together as if to fill her loneliness, they share deep, passionate kisses. Yuko soon finds herself sinking deeper into her forbidden, body-to-body sex with Ozawa...