Lin Xuyao was once the most arrogant transfer student in the school, and Xie Zhijuan was the school bully that everyone avoided, but he blocked a knife, stayed up all night, and knelt in the rain for him. It rained heavily that year. Xie Zhijuan was soaked and knelt in front of the teaching building, clutching the transfer application form that was soaked by the rain in his palms. His voice was hoarse: "Don't leave, I will change." Lin Xuyao did not look back. Three years later, when he returned as a top pianist, he bumped into the man who had broken his ribs backstage at the award ceremony - now the most silent prisoner in the solitary room, with the scratches on his wrist still marked by the school badge he tore up.