The "fairies" of Detective Academy refer to a group of people in the academy whose lively and cheerful (it can be said to be messy) temperaments do not match. Detective Academy has always been famous for its lively, cheerful and successful atmosphere. Sometimes it can even be said to be crazy, but there are some people who can always maintain their elegance in a messy atmosphere. For example, in Escape Room, Guo Wentao kept calm when everyone was in chaos, and Cao Enqi also kept his calm in extraordinary scenes in Detective Academy. Fairy 1.0 shows that Wen Tao has changed after rapping, and Fairy 2.0 shows that Cao Enqi has gradually begun to descend into the world.