1, "The Mystery of the Republic of China", the finale of Bai Lao: completely wash away from the underworld and join hands with Lu Yao to break the terrible plan behind the scenes. The most important thing for a white boss to be a gangster is to make money by doing business, but it is easier to do business if there are people on the white road. So boss Bai arranged Qiao Chusheng, the most trusted, to be the police inspector. After Qiao Chusheng took office, the first case was related to Lu Yao, and the two met.

2. Lu Yao later lost his job because of the case, but his ability to solve the case was attracted by Qiao Chusheng, who asked him for help.