Under the setting sun, they met again. He turned around slowly, and the light shone on his handsome face. He was surrounded by a halo like an angel, but only I knew his heart. It was dark and riddled with holes. He was no longer the boy chasing the sun in Qingwa Alley. He said, Yu Yiyi, long time no see. A drop of tear fell. Yes, long time no see, I'm sorry!