A story of reversal that follows a group of student delinquents who meet their match in a hot-blooded teacher with unconventional methods. Being relegated as problematic their entire life, the students of Class 11 of Xingzhi Senior High have grown to give up on themselves. At this time, rookie teacher Momo (Chen Yixin) arrives at the school with overwhelming enthusiasm to take on any challenge. Unbeknownst to the students of Class 11, Momo was once a poor student who knows all of their dirty tricks.