Lin Xing and An Yizhi were doomed to tragedy. Lin Xing was the one who would not take a step back from anything even if he fell out of his teeth and Xuetun. An Yizhi knew that, so it was always him who took steps back until there was no way back. "Why don't you disappear from my world?"
Then why are you still unhappy when I disappear?
Grumpy Attack X Teenage Mutant Ninja Turtles