12 episodes. In the plot of episode 12 of "The Detective of the Republic of China", the brotherhood between Inspector Qiao and Lu Yao has been highlighted. Inspector Qiao cuts a knife on Lu Yao's chest in order to save Lu Yao. When Lu Yao is knocked unconscious by someone sent by his father, When he was being taken away, Detective Qiao intercepted him and asked those who wanted to take him back to send a message: "If you miss him, you are welcome to come and see, but if you want to bully him, you are welcome to fight." "The Detective of the Republic of China" is a light-hearted detective drama of the Republic of China directed by Zhang Weike and starring Hu Yitian, Zhang Yunlong and Xiao Yan. The play tells the story of Lu Yao, a high-achieving student who returned from studying in England, and Qiao Chusheng, the police inspector, teamed up with female reporter Bai Youning to solve bizarre cases and uphold justice in Shanghai during the Republic of China.