Shang Yao has liked someone for many years and has reached the point where he can't live without him.
However, one day someone suddenly told her that that person had his own heroine. They were destined to be inseparable, and she was just a supporting role and could only watch their love for each other.
Shang Yao was unwilling to give in, but he was helpless.
Concept: Man is the sum of all social relations.