Classics from Yangma River

When I was riding home at noon, I suddenly thought that the changes in this society are not a matter of a few teachers. Since it is described in a straightforward manner, there are no earth-shattering things happening, and there is no great love. They are all trivial things, so why don't I take a broader view? So, I decided to start my story from three clues, one is the growth of a teacher, one is the changes in the family, and the other is the development of the friendship between classmates. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.