The God of Confucianism and Taoism in Legend of the Seven Realms

I like martial arts, and I actually want to write my own original martial arts book. However, my writing style is average, and I'm afraid I won't be able to write well, so I practice my writing slowly. Recently, I accidentally came across a novel that I read a long time ago, and I suddenly thought of writing a fanfic like this! Because it was a novel I wrote a long time ago, many of the settings were immature, so I made some changes. If there are any parts that are not in line with the original settings, please feel free to read it, because I changed it deliberately! The introduction is too weak, please move to the main text.