After his eldest brother became the emperor, the ninth prince Gu Jin retired after his success. After his half-sister ran away, he also packed up and went to work in the world. He adopted the pseudonym Bai Qiong and became famous thanks to his medical skills and Qinggong. He also gained the reputation of being the best doctor in the world and traveled around the world. Until one day, his emperor's fourth brother Gu Jue called him back to Beijing and asked him to go to Jiangnan to find Yun Shen, the owner of Tingxue Tower...
Purpose: Deep brotherhood