This story comes from a very interesting question, what would happen if Chongzhen was Song Huizong?
What would happen if all the capable ministers and generals in history were under his command?
So I made up a fictional dynasty, which was plagued by external and internal troubles, and half of the country was on the verge of collapse.
After the young emperor took power, he and his two friends set out to regain the lost territory, reform the bad government, and mediate party disputes.
They have the shadow of history, but they are not history. They have their own stories and choices.
Concept: Broken mountains and rivers, floating catkins in the wind