Siheyuan: Rise from the Sign-In System

In "Love in the Courtyard", Lin Yu becomes a very ordinary family member. His father is a revolutionary martyr, and his mother is a worker in a steel factory. Lin Yu once had an affair with Qin Huairu. Later, Lin Yu's mother died of a sudden illness, and Qin Huairu turned around and married Jia Dongxu, an apprentice in a steel rolling mill. Qin Huairu teamed up with the Jia family to slander Lin Yu in various ways, causing Lin Yu's reputation in the courtyard to plummet. Lin Yu took over his mother's job and worked in a factory. Then he studied a professional course on his own in school, and then was admitted to a factory. He became a technician and deputy director in the factory, and started a sign-in system.