An intense erotic story between a private tutor and her student Mako. Lately, the tutor has grown concerned about Mako's behavior, as she seems to be deliberately seducing her with her big tits during every lesson. Though still inexperienced, Mako strips off her underwear mid-class, wearing a bold, defiant smile. Even with her father at home, she uses her large breasts as weapons, escalating her aggressive advances toward the tutor. Hidden emotions buried within their daily routine draw them closer, driving their relationship into increasingly erotic territory.