Hijiri Suenaga begins teaching when she becomes engaged to Shotaro, an employee of an elite trading company in Osaka. They've been together since college. Although they are now in a long-distance relationship, nothing seems to come between them. But then Hijiri meets fourteen-year-old Akira. He is mysterious and charming. Hijiri knows that as a teacher she should not be attracted to her student, but his love for her is so pure and sincere that she slowly falls in love with him.