Miao Yan (miao four tones) went to City C to teach in No. 1 Middle School right after graduating from college. The head teacher of Class 7 of Grade 2 took a long leave to ensure his pregnancy. Miao Yan rushed Qiao'er to come, so he rushed Qiao'er to take over this hot potato. Class 7 is not a top-notch class. Although there are obedient and eager-to-learn students, they are definitely in the minority. They are more of a group of youthful, rebellious and hormonal teenagers who lead a mischievous and mischievous life all day long. Classmate Cheng Zhi disdains collaborating with them, but he also refuses to spend these beautiful years honestly, so there is always a little restlessness in his heart and he wants to be the enemy of the world. The two people disliked each other during the collision, but they could not resist the attraction of each other's shining points to themselves, and finally overcame many difficulties and came together. In fact, it is a history of growth of two imperfect people who tolerate each other and make progress together.