A schoolgirl accidentally witnesses a bullying incident and decides to help the victimized boy. Touched by her kindness, the boy becomes emotionally attached and later approaches her. The girl, wanting a change of pace, invites him into her room and provocatively teases him in her underwear. What begins as playful flirtation gradually evolves into a lustful relationship. Suddenly, the bully breaks into the room and attempts to harass the girl, leading to a physical confrontation. During the struggle, the boy experiences his first erection. Her surprised and excited reaction deepens the intensity of the story.