"Falling into Star City" tells the love story of Wu Yu and Xia Lin from campus to society. After graduation, the two went to Changsha and Shanghai respectively to pursue their dreams, but as time passed, their life trajectories gradually separated. Wu Yu got lost in academics and the workplace, and eventually betrayed Lin; Lin raised her daughter alone under the pressure of life and faced the difficulties with strength. Many years later, Lin found herself again in her career and life, and met the gentle and considerate Liu Hong, and the two gradually got closer. The story shows love, betrayal, growth and rebirth, and depicts the struggle and choice between people's dreams and reality in modern cities.