In the millennium era, Zhao Yingjun, a nightclub owner, and Fang Ling, a notorious big sister of the streets, have a daughter, Zhao Yu, whom they've raised with almost no supervision. To their surprise, she's an exceptionally disciplined genius girl. Her parents try to get her to dye her hair green and play mahjong so she can inherit the family business, but Zhao Yu sweeps the mahjong table with probability theory and wins back her right to study. Her leather-jacket-wearing parents quickly surrender and transform into fiercely protective guardians. At parent-teacher meetings, they even turn humblebragging on its head and thoroughly humiliate snobbish parents. With her parents' unwavering support, Zhao Yu embarks on an exhilarating comeback, earns a recommendation to a top university, and helps her entire family rise with her!