It is a fairly mediocre isekai manga that bears strong resemblance to "Isekai wa Smartphone to Tomo ni" (In Another World With My Smartphone).
What does it mean?
Well, we have RIDICULOUSLY overpowered protagonist, with typical righteous shounen behavior, who was reborn in a fantasy world....
What does set this particular "isekai" apart?
Well, protagonist is a kid. That means there are some cutesy visuals, but not on the level of, say.... "Tensei Shitara dai Nana Ouji dattanode"
It is also not really fanservice oriented, as far as I remember. There are hints of future harem, but it is still sort of adventure in the end.
The main character doesn't really
become immediately overpowered at chapter one (like Mochizuki Touya), and there's still some growth along the way.
There's some comedy based around protagonist's lack of common sense. This theme isn't really used well, in "Smartphone" and other similar works.
The art is ... decent, it is clean, but fairly typical, the story is silly, the characters are cutouts with predictive behavior.
It can be used to kill some time, but it isn't a masterpiece. I kept following it for a long time, and it didn't produce an occasional smile for me, but that's about it.
4/10 story, 5/10 art, 4/10 character, 4/10 enjoyment, 5/10 overall.