Manabu was a promising young man on the prestigious baseball team, but a serious injury during a game put an end to that dream. His mother, unable to bear the sight of him living a self-destructive life, called in a caregiver, Kana, to help him return to his normal life. With her gentle smile and unyielding attitude, Manabu gradually finds himself drawn to her. And as she embraces his pent-up erection and leads him to ejaculation over and over again, his troubled heart gradually begins to heal.