Young Yang, a country youth, moves to the city to live with his sister-in-law Xiao Ya. With her help, he prepares to join a factory. During his pre-employment medical exam, he has an ambiguous encounter with the factory owner's wife, Sister Su. He also unexpectedly witnesses the factory being harassed by debt collector Li Zhigang and uses his strength to resolve the situation. Meanwhile, his disabled cousin, unwilling to burden Xiao Ya, entrusts Young Yang to take care of his sister-in-law and ensure the family lineage. Young Yang navigates workplace relationships in the factory while deeply entangled in emotional conflicts with his sister-in-law and Sister Su.
