The students in Class E of Grade 12 have distinct personalities and are undisciplined. What kind of head teacher is needed to lead them on the right path? Wang Gebi (Bai Ke), a rich young man with a mansion, a sports car and a bunch of girls who want to pounce on him, becomes the intern head teacher of Shude Middle School, A Lie. From then on, he receives a meager salary and has a complicated relationship with the rookie female teacher Su Yi (Zheng He Huizi). He is also responsible for listening to the girlish thoughts of his older male roommate Wu Wei (Kong Lianshun). What is he doing? An unruly teacher wants to share youth with a group of students.