Description: You just returned to your high school alma mater after graduating from college, and you still feel a little strange in the face of everything you are familiar with. As an intern teacher, you took over your first class. In the face of a group of children who have just grown up and have not given up their childishness, and a group of adults who have just grown up and have not given up their dreams, how will you guide them to the future? Nine classmates with different personalities, a young teacher who has just stepped into the industry, the most contrasting identities are at the closest age, and experience that high school full of memories from another perspective!