This is the courtyard house I wanted, a childhood dream. From the late 1950s to the late 1990s, He Yuzhu, the canteen chef of the No. 3 Steel Rolling Plant in Beijing, known as Shagen, insisted on not taking advantage of the public and not being kidnapped by morality amidst the chaos of human relations and the ups and downs of the times. The widow Qin Huairu repeatedly tried to tie him down in order to make a living, and even disturbed his relationship with Lou Xiao'e, but step by step he learned to keep boundaries and rules without losing his kindness. In the past few decades, rebels, decentralization, reforms, seafaring, and demolition have brought about ups and downs in the courtyard. Sha Gen and Lou Xiao'e finally turned the old courtyard into a "happy home" and maintained a right path in the ups and downs of the world.