Huang Ying Zi, Jiang Yi, Fang Ming Yu, Zhuang Yuan, Lan Yi Fei, and Guan Chao all grew up together in Hangtian City, and they became known as the "Hangtian City F6". The good friends had promised to be together for the rest of their lives but were forced to abandon their promise because of an incident in the year of their Gaokao college entrance examination. Twelve years later, at the age of 30, they each walked alone on their respective paths of life, working hard and growing up in the adult world. Suddenly, one day, they received the news that their good friend Guan Chao was about to get married. With the help of Huang Ying Zi, the old friends reunited during the wedding, and their memories of youth slowly unfolded