Update:
This whole thing isn't a spoiler, anything specifically mentioned or revealed here happens by chapter 5, with most of it happening in the prologue or first chapter.
Original:
The MC is effectively a living god, like, first chapter he murders 3 trained soldiers in full plate mail with a hostage by using the bare fists of a 13 year old elf that's presumably malnourished to some degree.
(very minor spoiler)
He then goes to a fort, changes his form into what is essentially a soul-devouring invulnerable being, massacres the garrison of troops, and stores several metric tons of supplies in a dimensional pocket, something that is apparently unheard of in that particular world.
You might be asking: "How is he able to do all of this"; well, the answer is 'magic', and not 'magic' in the sense that he's some sort of wizard (though he is), i'm talking the magic of vague, barely explained parts of the story's universe that work like they do because the author said so.
Don't worry though, in case you think all there is in this story is vague, deus ex machina crap, you'll also get to enjoy significant portions of chapters explaining things such as: how and why the MC cooked deer liver the way he did, how much the MC just looooooves some elf girl that the reader seems to be expected to care about, the MC's theories based on nothing but assumptions and intuition, and much much more.
I understand that some people enjoy stories that are basically just OP protagonists wailing on bad guys and building harems, and I can even tolerate that as long as it's a good story, but this is just neither. It's a power trip that leaves you unfulfilled, and the writing does its utmost to kill any engagement you have in the story with giant blocks of text full of trivial crap. I do not want to be told how great an MC is, what he does, and how he does it; I want to be shown an entertaining story about a cast of characters that I am made to care about. Maybe it gets better later on, maybe the author figures out that I don't care about how to deal with the bile in a deer liver when cooking it, but I just can't bring myself to slog through it and find out.