Lu Jiuqing and Su Qianyue formed a bond at the orphanage when they were children but were separated later. Twenty years later, Su Qianyue, in desperate need of money to care for her ailing adoptive mother, ends up marrying Lu Jiuqing by accident, though neither recognizes the other. After their secret marriage, as they work and live together, they gradually develop feelings for each other. In the end, they recognize each other and sweetly reveal their relationship.