I'm not really sure what to think about this show, or what it's trying to be. The Demon Lord reincarnating and trying to figure out the world, plus the world building are pretty good so far. It seems like maybe his magic and the magic that exists now are not as dissimilar as he thought.

However, there appears to be a pretty decent amount of ecchi, which is unusual in my experience for a show with a good plot. Usually the ecchi is used to sort of spackle over a story that they feel like may not stand on its own, but here that doesn't seem to be an issue. It's just a bunch of shower scenes that don't really add anything. There also a whiff of shotacon that I'm not sure is intentional (or it could be the entire point) Don't get me wrong, I don't really mind that sort of thing at all, was just kind of surprised to see it. Maybe I'm wrong and the plot will fall apart, but I hope not.