Yunzheng opened a door, and there was no turning back. Life is like this. When you open the bow, there is no turning back. It has been a hundred years since you wanted to turn back. This is a novel about the way of being a teacher. Survival wisdom talks about the warmth in the world, talks about brotherhood, expresses gentleness and humility, here is the most beautiful love, and the deepest brotherhood... Perhaps, I really want to unfold 'A Picture of Shanghe on Qingming Festival' slowly, Give you a different Song Dynasty, a different world...