This has nothing to do with reality. They're just fictional characters here.
Jiang Xianyu wants to be a man more than anything. Why is she so fixated on this?
Because she wasn't born a boy and was nearly abandoned. Because not being a boy became her father's excuse for beating her. Because she wasn't a boy, she couldn't fight back against the abuse during her teenage years.
Because she was a girl, she suffered so much unfair treatment. Even when she stood on the stage she loved, she was forced to wear revealing clothes and perform dances full of sexual innuendo.
Everyone cursed her for being shameless, saying she was born with a fox-like face. But only she knew all the pain she'd endured and that she was innocent. At last, she lost her life in an accident. When she woke again, she found herself back in the past, and at last, she had become a boy.
This may have questionable values and some dark themes.
If that's not your thing, don't open it.
Theme: After so much suffering, a dream comes true