Shi Miao is still stuck with her irresponsible elder brother Shi Fen, who lives in neverending fear of his younger sister's stormy temper. As the siblings continue enjoying their carefree high school days alongside their friends and classmates, they realize that there truly is no cure for family.

Shi Miao has a lot of experience dealing with her older brother's peculiar habits. After all her scolding, it is natural to expect that Shi Fen's antics would come to an end. But having spent their whole life together, it is obvious to Miao that some things never change—and maybe that is for the best. Despite his recklessness, Fen usually means well. As a result, a tight-knit friend group has formed around him and his sister. Joined by their classmates—Kai Xin, Wan Sui, and Miaomiao—the Shi siblings' tenure at high school continues to be an absolute spectacle.