This is a fan
But in fact, I only borrowed the names (I always use these two names when writing)
The background is fictitious, but it is estimated that some previous knowledge will be used to create a parallel world starting from the Tang Dynasty. The time was probably during the Five Dynasties period, when the feudal system was changed to the Yan regime.
I am not a textual expert, and the article is very rough. I apologize for any inaccuracies.