Thanks for the chapter. I think cannon is the best choice since this way the Mc will gain an enemy that will constantly pressure him to improve and get stronger, also it would be interesting to see Nie li's downfall in the hands of the mc.
I would prefer the Canon the one without the Canon is basically a new story that you should work on and without wanting to doubt you I think it's complicated it's like creating a new story with some elements already existing it seems complicated so I think Canon is better