Chaoyang people, Xicheng aunt, Xicheng uncle and Chaoyang aunt often appear in various criminal news cases. They generally have a feature, which is to help the police solve the case at a critical moment. They have extraordinary abilities, but in order to protect their safety, their specific identities are not made public, and they are only replaced by Chaoyang people, Xicheng aunt, Xicheng uncle and Chaoyang aunt. Over time, Uncle Xicheng is as powerful as Aunt Chaoyang.

Chaoyang, Beijing, a resident of Chaoyang District, Beijing, the capital of China, has been involved in cracking many major cases such as celebrity drug abuse, and has been called "Chaoyang people" by netizens.