Lu Chen, the owner of Yunhai Cliff Resort, loses his black gold card, which is found by his former classmate, Zhao Hui. At their class reunion, Zhao Hui pretends to be the resort's owner, boasts that he will pay for everyone's expenses, basks in their admiration, and even mocks Lu Chen and his wife for freeloading. But when the bill arrives, Zhao Hui discovers that the black card only grants a 40% discount and has already been reported lost by Lu Chen. Faced with an astronomical bill of 450,000 yuan, Zhao Hui is exposed and forces his classmates to split the cost. After Lu Chen's true identity is revealed, Zhao Hui seeks revenge by hiring online trolls and bribing people to fabricate bullying rumors and launch a cyberbullying campaign against him. Lu Chen presents evidence to clear his name, Zhao Hui is eventually punished, and Lu Chen's career reaches new heights.