In 1992, Liming, the top scorer in the college entrance examination in Yunlin County, Shaanxi Province, exchanged a promise for the right to fall in love with the school beauty Mei Xiaosu. When his father was paralyzed and his family was destitute, Mei Xiaosu gave up his career to raise a family for him, while he went to Beijing with the expectations of his family. From the desperate rush in the truck compartment to the simple "I do" wedding, the two people spent their entire youth realizing their love.
However, marriage is not the end of the vows, but the beginning of the test. Hukou, housing, the cold shoulder of the system, and material embarrassment wear away the lovers bit by bit; Li Ming's nobility protects their ideals, but leaves his wife to pay all the price alone. When Mei Xiaosu, who had a successful career, was completely disappointed in her marriage and turned to Shen Jiarong, who had silently protected her for many years, the marriage seemed to have come to an end.
At the same time, Wenzhou youth He Nan and Beijing girl Zhang Shu, post-1990s entrepreneur Liang Xiaolong and returnee girl Wang Kuo, as well as life-long companions Sun Zhongmin and Xie Yuqi - four generations and four relationships, each withstood the torture of poverty, distance, temptation and life and death in the era of SARS, financial crisis and entrepreneurial boom. Some people are lost, some are wavering, and some have hit rock bottom and climbed back up.
It only takes a second to say "I do", but it takes a lifetime to fulfill it. This is a story about original intentions: a group of mortals were repeatedly shaken in the mirror of the times. After being shaken, they still chose to come back and say those three words - I do - to each other, to life, and to their original selves again.
