Cheng Keqing was born in a patriarchal family. Of four siblings, only the youngest brother is like her sister. She, her sister is his brother's object. She accepts her fate but doesn't want to admit it until she meets the person she is destined to be. (Because I don't have a lot of knowledge, I may write in a mess. Please forgive me, I have a little background, and the rest is empty)
Purpose: Mutual salvation