Overall promising, but very slow moving plot.
Since this is the Adaption of a Light novel it will be treated as an unwanted step child, like every Manga version for Light novels. If you don't like waiting 3-4 Months for Updates that might never come you shouldn't read this.
But what is it about?
The son of an Restaurant owner dies in the stupidest way possible since Kazuma. He ran into a burning building to save a knife.
But that's actually not so bad, since he now has a knife in the isekai world. Getting saved by an absolutely stunning Woman, he quickly learns that her society hasn't
evolved much from cavemen. They have fire and tools, there is a town nearby, but they somehow don't even know the basics about disecting Animals. They don't know about bloodletting and they only eat small parts of the "Giba" (Somewhat bigger and stronger boars) while throwing the rest away.
They don't know how to cook and our chef to be is going to educate them.
As for the Art, it's clearly above average.
The characters have as much depth as you would guess from a hunter and gatherer society. But it's fine.
I give it a 7/10 because of the art and the rather unusual story.
1 Bonuspoint for having an Isekai without game interface for the protagonist only.