He was her tutor. When Ye Xiao was young, she just clung to him. He was her first dream and the first sunshine. He hurt her because he didn't want her to fall too deep. Who knew that he had already fallen slowly... Taking a step forward would be a mistake, taking a step back would be a regret. Just in this step, I hope that time will be eternal, space will be eternal, everything will be eternal, that's all.