Fifteen years ago, Su Yang and Liu Qingyan made a childhood engagement based on a piece of engagement paper. Years later, Su Yang concealed his true identity and disguised himself as a penniless, down-and-out youth to visit their home, solely to test whether Liu Qingyan still remembered the promise from back then. Faced with the repeated humiliations from his snobbish sister-in-law Liu Ruyan's family, Su Yang initially intended to turn and leave, but Liu Qingyan kept him publicly and confessed that she had never forgotten the innocent affection of fifteen years ago. Until the day of their wedding with Liu Qingyan, Su Yang finally revealed his true identity to the public. Amidst the astonished and remorseful gazes of everyone, he took Liu Qingyan's hand and walked into the grand hall of marriage with a woman whose original intention remained unchanged regardless of wealth or poverty.