Tong Yu (played by Zhang Han), Guo Chong (played by Du Chun), Li Jiesen (played by Huang Youming), and Xiang Xiaofei (played by Jing Chao), four college friends with different personalities and from all over the world have experienced their youth together and are now a fortunate.In Shanghai in 2020, Tong Yu, who became an artificial intelligence engineer, Guo Chong, a university teacher, Xiang Xiaofei, a brand store manager, and Li Jiesen, a chef from Western restaurant, became mature and steady, but the four of them all had the dilemma of men.Tong Yu faces huge difficulties in R&D. Guo Chong lost his passion in his stable work. Li Jason was unable to break through the bottleneck, while Xiang Xiaofei struggled and wandered between money and ideals.Four men face a typical midlife crisis, support each other and seek breakthroughs in the ups and downs.The four people also encountered love in their respective lives. Tongyu and many female managers of the company (played by Wang Xiaochen) were emotionally ups and downs, Guo Chong and graduate Amy (played by Li Haofei) were close to each other, Li Jason pursued his idol Weibo writer Yue Ziqian (played by Zhang Yamei), and Xiang Xiaofei married Liu Shengnan (played by Xiao Han).The emotional road is far more tortuous than the career.In the end, in this best era, they embrace career, embrace love, and move towards maturity and a better self.