Story of Tong Yu, Guo Chong, Li Jie Sen and Xiang Xiao Fei, who are close friends in university. 2020 in Shanghai, artificial intelligence engineer Tong Wu, university lecturer Guo Chong, branded shop manager Xiang Xiaofei and western restaurant chef Li Jie Sen have reached the age of maturity. However, they have reached a stage of nadir in their respective careers. Tong Wu faces difficulties in research and development, Guo Chong has lost his passion for his career amidst the stability of his job, Li Jie Sen finds it hard to break through the bottleneck, and Xiang Xiao Fei is struggling between his ideals and money. The four men also encounter love in their respective lives, but their relationship problems are far more complicated than their careers. Tong Yu and his company's manager, Xu Duo, face many ups and downs in their relationship. Guo Chong and graduate Ai Mi seem neither close nor distant. Li Jiesen is pursuing his idol, a weibo author named Yue Zi Qian, while Xiang Xiao Fei and businesswoman Liu Sheng Nan enter a lightning marriage. The four men, who are facing a typical middle-aged crisis, support each other while seeking a breakthrough in the ups and downs. In the end, the four men decide to embrace their careers and love at their best age and walk towards a better and more mature version of themselves. (Source: DramaWiki)