Description：The story takes place in a remote mountain city in the 1980s. Miao Wanqiu (played by Yu Qian), an outstanding teacher at Nansu No. 1 Middle School, is full of confidence and welcomes a new batch of high school students. On the first day of school, the domineering teacher Miao gave this group of students with flamboyant personalities and many problems a warning. Whether it was the rebellious gangster Luo Xiaoyi, or Wang Hai, who was full of ghost ideas, whether it was the opportunistic Haozi, or the vain and flamboyant Guan Tingting, they were all subdued by him. It's just that these children are obedient on the surface, but they have launched a protracted war with Miao Batian behind their backs. In the course of the war, the domineering Miao Batian showed his warm side from time to time, and his ancient and chivalrous heart made the children secretly admire him. In a blink of an eye, three years have passed, and the ignorant children have grown up gradually. They seem to have begun to recognize Teacher Miao.