Ye Siming, a former school figure who had no choice but to return to school to serve as a teacher. On the top is the elder brother who was afraid of him. On the left is the master who grew up with him. Although he loves himself but is very strict. On the right is Chen Xunjiao, who had a feud when he was a student. Below is a group of confused and troublesome students. How can he break out of the siege, escape the fate of always making mistakes, and how to get his own love... There is also a group of people with different personalities who are performing their own unique lives...