When his father remarries, Shinji enrolls at a boarding school in hopes of forgetting his secret feelings for his stepmother, Sakura. Three fulfilling years quickly pass, and on graduation day Sakura comes running up to him with a smile. They celebrate alone while Shinji keeps his longing hidden, but the tipsy Sakura gently kisses him and promises the now-adult graduate a special gift. In this adult stepmother-and-stepson role-play, that kiss marks Shinji’s first intimate step into adulthood.