Zhao Chengfeng, a low-key tycoon who enjoys working as a food delivery rider for fun, accidentally rescues Long Qi—the young lady of Longcheng Chamber of Commerce—who refuses to marry into the Lin family. To deal with the crisis, Long Qi insists on asking Zhao Chengfeng to pretend to be her fiancé. Zhao then reveals his true capabilities: he helps the chamber of commerce pay off its debts and drives its transformation. As they spend time together, affection gradually grows between them. They join hands to confront rivals like Cheng Rui, go through life-or-death gambles and family conflicts. In the end, Zhao Chengfeng wipes out all enemies, marries Long Qi, and the couple works together to become the world's richest.