He is Song Yan, a "fake young master" who has been adopted by a wealthy family for twenty years. On the day when the real master returned, he was ridiculed by the entire Internet as "a liar who occupies a magpie's nest." To show his loyalty, his adoptive parents kicked him out of the house overnight. When he was living on the street, a marriage contract hit him - the legendary blind and disfigured wealthy daughter wanted to marry him, a loser.
In the wedding night, Song Yan lifted the hijab and saw a beautiful face with a playful smile. She lightly opened her red lips: "You are not a real young master, and I am not a real daughter. Someone carefully planned this 'wrong marriage', just waiting for us to bite each other." Only then did Song Yan realize that he had awakened a strange ability - he could see the "causal line" above everyone's head. The red thread represents destiny, the black thread represents conspiracy, and the "fake daughter" Su Wan in front of her has dozens of bloody causal threads wrapped around her head, pointing directly at the seven major families in the city.
Behind a conspiracy to swap a civet cat for a prince, lies the truth about a murder that occurred twenty years ago. Song Yan decided to use the "fake" to defeat the "fake" and find a way out of the misplaced identity. He wants everyone to understand: Even if he is a chess piece, he must also be the knife in the hands of the chess player - the point pointed by the blade is the beginning of his change of life.
