I really don't feel like the previous reviews are giving this a fair shot. I've read a lot of manga, I've read a lot of trash, I've read a lot of isekai. With the last part of that, this is one of the better ones I've read. The world building in this is pretty thorough compared to many others, where the author does a good job at making the world feel alive and moving outside of our main party. The story is fairly simple overall, but again, the world building and plot within the story does a good job at fleshing out that simplicity. Atthe end of the day though, it is a tower building manga. Again, pretty simple.

Now, as a direct response to people saying the MC is just wish fulfillment power fantasy, eh, I can see where they are coming from. A lot of what happens in this manga are because of the people he surrounds himself with and their power levels while he just stands there. However, it's not like he's completely useless. He's more of the "brains" of the group, which is where I sorta disagree with the "power fantasy" part of it. He's not powerful in the sense of many other isekai MCs, he's just extremely methodological. Again, tower building, so when it comes to his power, well, do you get mad whenever you play a Civ game and level up when you conquer a territory? I can't really discredit the "wish fulfillment" part of the criticism however.

Overall though, without going into spoilers, I ranked this one so high and say it's one of the better ones because the world building is top notch. I do wish the author put more into the characters, but with what we're given, I think they are serviceable. They're not too much of a blank slate to be boring, and there are enough elements in there that show the characters having their own personalities. Again, serviceable.

That's it though. I can see why people don't like it, but there's enough there to make it a good story.