Living at both ends of the Luoyang Luo River, two girls of different classes were accidentally involved in an unsolved case, and they with different identities worked together to expose the villain's conspiracy. The two protagonists in the story are Zhao Qingqing, the daughter of the captain of the Jinwu Guard, and the girl Little Liar who is mixed at the bottom of the city, two people who originally lived very different lives, after encountering a series of bizarre and bizarre cases in Luoyang City, formed a temporary partner, they have gone through many trials, and still uphold justice in the chaotic times with a fearless heart.