On the neon streets of the modern city, four young people with very different personalities, Lin Jiayi, Xu Jiawen, Gu Qingying and Zhou Xiaoyuan, met at a chance gathering. As their friendship deepens, they each continue to face challenges in the workplace, life, family and emotions. The book uses humorous and compact writing to describe their ups and downs of urban life: some are fighting for their dreams, some are trapped in a complicated whirlpool of love, some are struggling between power and desire, and some are trying to find themselves. In the multi-line parallel story, the life trajectories of the four people sometimes intersected and sometimes separated. They learned to grow amidst the ups and downs, and gradually found their own happiness and belonging with the help of each other.