Su Xiaoxiao is an heiress rejected by the Su family and a natural-born big eater. To avoid marrying Li Jingheng, she hires Li Yinch u, who appears to be a down-and-out beggar, to crash her wedding and register their marriage. However, Li Yinch u is actually the richest man in the country, and the two share a past in which they once saved each other's lives. After weathering the turmoil of a big-eating competition and family conspiracies, the truth behind a fire is finally revealed, the villains are brought to justice, and the two find lasting happiness together.