There are women and men in this country. When a man is sixteen years old, there will be a "first day" to re-determine gender. If the "yang" is divided, he is a real man. If the "yin" is combined, he has the function of fertility, that is, he has a female reproductive system, but his appearance is the same as that of a man. A man who combines Yin can marry either a woman or a man.
Qingyang is the eldest disciple of Xiaoyao Villa. He grew up with Xiaolan who lived here since he was a child. Xiaolan wanted to take revenge on the current prime minister since he was a child.
Qingyang liked Xiaolan and went to help him, even though he knew that Xiaolan would not give up anything for him.