Xu Hao transmigrates to a world of traditional courtyard houses, starting as a member of the intangible cultural heritage of paper-making. To improve his skills as soon as possible, Xu Hao begins arduous training. From then on, the people of the courtyard house become Xu Hao's practice material? Qin Huairu: My hand! No, no! Sha Zhu: Who's skinning me? Jia Dongxu: I just took a nap? How did I become paralyzed? Deaf old lady: This water is delicious, I won't get up! Liu Haizhong: Only I know the taste of excrement!