Kokoro is a cute and serious female student. A male student who is aroused by her quiet personality takes advantage of her and repeatedly sexually molests her. When the school staff and teachers find out, instead of helping her, they use the fact that she was being sexually molested as an excuse to further punish her with their thick cocks. The girl's body starts to feel pleasure as she is violated, and she becomes a sex doll for the middle-aged men.