Wu Yu was born in a small town, and his parents were car mechanics. Coming from a poor family, he was discriminated against at school, despite his excellent grades. He became even more autistic, and everyone began to call him "mute." The idea of revenge against society quietly grew in his mind. He started smoking, drinking, fighting, and bullying the weak. It wasn't until a beautiful and kind girl appeared that she slowly changed him. After the girl's parents found out, they firmly opposed the girl's relationship with a gangster. Finally, one dark night, the boy jumped into the rolling river...