In 1977, in order to allow her brother to take the college entrance examination with peace of mind, her sister Lin Jinxiu was forced to marry as a substitute and formed a "contract couple" with Zhou Xiangwan, a boy from a steel factory who was rumored to be surly and unruly. In the torrent of reform and opening up, the two grew up from partners who used each other to confidants who supported each other. They eventually jointly created a business empire and found their true selves in the changing times.