As a partner of Lanting Hotel, Gu Cheng'an sees his younger brother Gu Chengze getting married to host a wedding banquet for Su Jingyi. Su Jingyi misappropriates the Gu family's betrothal gifts and banquet money to subsidize her younger brother Su Mingkai, refuses to pay the 100,000 deposit for the wedding banquet, and attempts to use family ties to force the hotel to make an exception. On the day of the wedding, Gu Cheng'an halts the banquet in accordance with the rules and publicly releases evidence to expose Su Jingyi's lies. Su Mingkai falsely claims to be a life-saving benefactor to elicit sympathy, but the truth is investigated and confirmed: the car accident was originally caused by Su Mingkai's fatigued driving, and he is also suspected of illegal fundraising and taken away by the police. Gu Chengze terminates the engagement, Gu Cheng'an firmly upholds the rules, and wins public recognition.