It's amazing how these "official" sites want you to pay $2.20 per chapter to read a manga. For the same amount that it would cost you to read this you could probably go buy a whole book series or something. I'm amazed they make any money at all.
This plot falls apart pretty hard at the high level when you start to think about it. I'm not sure why this has as high of a rating as it does. Characters seem fine, if generic, but the internal logic of the world around them doesn't make sense.
Honestly I quit like 2 chapters past the nationalism arc. Couldn't take the story seriously after reading a power fantasy with that much cringe. That's saying something considering how much absolutely trash isekai I've read over the years.
However, despite that I have to say that this is 100%...
I can practically taste the angry tears running down the author's face as he wrote this arc. Maybe if China spent less time grumbling over the past and fantasizing about how things could have gone if only those darned non-Chinese didn't have guns and tactics and stuff (and IF ONLY muh ancient...