Gu Cheng'an runs a restaurant. His former classmate, Zhao Jingchuan, is vain and repeatedly comes to consume without paying, even booking the venue to hold an engagement banquet. After extravagant consumption, he still intends to eat for free. Once the banquet ends, Gu Cheng'an produces the complete consumption record and legally demands that the other party settle all bills. Zhao Jingchuan attempts to find people to apply pressure, but his lies are exposed in public, the truth of his scam marriage is revealed, and the engagement is annulled. Zhao Jingchuan and the others need to bear corresponding civil liabilities. Gu Cheng'an lets go of past experiences, focuses on managing his career, and opens up a brand new life.