Su Muwan, the legitimate daughter of the Su family, mistakenly believed in her concubine and the third prince in her previous life. She was robbed of her marriage and title, and was poisoned to death. Once she was reborn at the engagement party, she tore through the hypocrisy, refused to marry the scumbag, and worked step by step to clear the house and investigate her mother's injustice. Joining hands with the secretive fifth prince, they stir up troubles in the court, tear apart enemies, protect loved ones, and counterattack from chess pieces at the mercy of others to a powerful person in charge of fate and the chess game.
