Lan Che, a street girl who is dedicated to protecting her neighborhood, is accidentally involved in a murder case and meets Lou Mingye, the chief minister of Dali Temple. The two people are completely different and have misunderstandings in the initial collision, but as they get to know each other better, they resolve their misunderstandings, work together, and repeatedly solve strange cases. At the same time, in the process of solving the case, the two gradually build up feelings, confirm each other's identities, and finally gain true love. With the company and help of Lou Mingye, Lan Che has gone through layers of training and has grown from a street girl to the first female Shaoqing of Dali Temple, realizing her life ideal. The series is adapted from the novel "The Cute Princess of Dali Temple".