In the 1970s, Fei Ni, a motivated female hat factory worker, wanted to go to college and change her destiny through knowledge.Fei Ni's junior high school classmate Fang Muyang became a hero because he saved people from injuries. Fei Ni offered to take care of him. She wanted to do good deeds and be recommended for college, but her hopes were repeatedly frustrated.

The pressure of reality came one after another. In order to help her brother solve the problem of the marriage room, Fei Ni proposed to Fang Muyang to arrange a fake marriage and allocate a room.After many twists and turns, the two finally got their own house and became a couple sleeping in bunk beds. They faced difficulties together and encouraged each other to pursue their dreams. Although they stumbled, they also grew a congenial romance in their ordinary and warm life.