In episode 38, when Laobai appeared in the last episode, Badou was just encouraged by Xiaobai to sell his drinks. Later, after everyone helped him, business was good. Sanjin worried that he was lazy and made an excuse to let him change the oil. Badou had to ask Hu Jihua. In this process, he met Xiao Xuerong (the daughter of the fairy princess played by Gong Shu and Ma Su) played by Zifeng Zhang, and then this story of Gong Shu was introduced.