TL;DR Whimsy refreshing fantasy/comedy/calm/parody manga.
Some comments
Whimsy manga that somehow feels fresh because of the premise and whimsiness of it. I say whimsy because the mood switches very often abruptly. Personally I think that's my expectation of the manga but those that come expecting a stable mood or feel going through it kinda like the sadness of Oyasumi Punpun or the rom-com isekai feel of Konosuba might be surprised.
It doesn't have power-trip service like many other fantasy manga do. In that sense, it's a clean refreshing manga I can read when so many other bore me.
Aspect by aspect comments
Story 8
All over the place in a whimsy fashion
Art 9
Clean and cool
Character 8
Main cast is cool. No overly exaggerated trait that made any one of them dislikeable
Enjoyment 10
Captivated my attention because of the uniqueness