The fifth season of the Comedy and Slice of Life ONA, adapted from a Chinese web comic by Yu Lei, returns to the Shi siblings. Fen, the older brother, has a careless streak that keeps grating on his younger sister Miao, and their clashes turn physical in a comedic way. Between those fights, the two have to watch their spending and get through exams. Their friends help out: Fen's well-meaning best friend Kai Xin is as scatterbrained as Fen but athletic, and Miao's cheerful friend Miaomiao usually sticks by her side. Wan Sui, the newest member of the group, tries hard to hide that he is rich, stays loyal to the others, and sometimes drags his younger brother Xing along. Their roundabout fixes for problems can backfire, but none of it stops them from having fun in high school.