Personally I think this story has done a bad job of clearly explaining the world. From my understanding MC is the 42nd Celestial king, each king seems to have 6 lives, and the NPC's have always been the same. That means the Celestials went through 41 bad kings that it seems like the seme killed them over and over to get rid of them. The reasons they give (I think in ch 17) for why the kings were bad didn't even have to do with politics or anything like that. It was just that they didn't love the Celestials. In other words, the game doesn't seem to be set up in such a way where the skills that should be important to a ruler IRL are important in the game. It's set in such a way where what matters seems to be how much you care about your subjects. The Celestials and all other empires are capable of running themselves without their kings. We've seen Luhark handling a bunch of paperwork but MC never seems to have to do any work. We've seen how other kings of other empires are absent while their grand dukes take care of everything. So the game seems to not care about kings being politically competent. Being a good king in the game apparently has different criteria to what being a good king generally requires outside of the game.
The story is good in theory but the MC is incredibly dense and honestly unlikeable. His empire is ranked first so he's constantly surrounded by big dogs but in terms of power, intelligence, and political contribution...he's lacking. The only reason we're given as to how the empire ranked first is because of...trust? Seriously? It's giving mary sue. Apart from his "likeable personality" he doesn't have any redeeming qualities. He's weak as hell and constantly needs saving, and blindly trusts anyone.
Frankly, I can't wait to see what damage the cousin is gonna do to his empire because he wanted to trust a celestial that's still bound to the nature empire through contract. Not to mention the ML - wtf is he even upset with? The fact that MC disappeared? Because he had to live and exist in the real world? The concept is cool but the execution is ridiculous. At least the art is pretty and the smut is good.