At the age of eighteen, Lin Zhiyi was taken back from the mountain Taoist temple to the wealthy Lin family, and became the "real daughter" who had been living abroad for many years. What greeted her was the fake daughter Lin Qingyue who had taken her place, and the indifference and disgust of the whole family. They thought she was a country bumpkin who needed to be "reformed", but they didn't know that she was the ace investigator of the national secret agency "Special Investigation Bureau", codenamed "Guixu". While wealthy families were still competing for favor, she was already holding a compass and walking toward bizarre and mysterious cases. Until one day, the powerful heir of the Gu family blocked her in a corner and asked with red eyes: "Is that little girl who saved me in Kunlun that time you?"
