I'm not sure why so many commenters are saying it's a huge drama when it's just unfortunate that different groups were unaware of each other, and it didn't drag on much.
I enjoyed reading this, but it feels like every ruler isekai is them convincing people just using enlightened modern age reforms instead of playing to the nuisances of the time and handling the balance of power. And the idealist hero will probably be a more apt name for the series.