Su Yingxue, a peasant girl who has been living in the countryside for more than ten years, turned out to be the long-lost daughter of the famous Su family. On the day she was taken back to the mansion, the housekeeper humiliated her in every possible way. Her adopted sister Su Xinyue pretended to give in and dug holes in her. Her brother Su Zhenting was full of prejudice and drove her away in public. Although her biological parents wanted to make amends, they also favored their adopted daughter and eldest son who grew up together. At the reception dinner, the brother and sister teamed up to create trouble and set up a trap. Su Yingxue accepted the move calmly and made every statement reasonable. However, due to her parents' favoritism, she finally suffered a secret loss and was placed in a remote palace where no one valued her. No one knows that this seemingly timid and meek country girl is actually Ye Ren, the leader of the world's number one killer organization. She has peerless martial arts skills and an unparalleled understanding of people. The Su family's family plot is just the beginning of her entry into the world's chess game.