This mc sure is retarded, but it's in a funny way, it's not that the author can't write a character, he just made him an idiot since this is a comedy manga. It's easy to notice that. However, I do think his hyperactive personality will get boring after a while and how he just relies on luck all the time always gets old. I mean, he has done pretty much nothing by himself. All is about luck. Lucky the monkey dropped that seed, lucky the monkeys left, lucky the monkey attacked him and triggered his evolution while dying from his smell... Luck without anything regarding the brains or effort department.
I also feel deeply jealous because he's getting all of this deserving none of it, I also want to become super fit instantly and get incredible powers while doing nothing of note. Well, I do want to read more, at least a dozen or two dozen chapters would be nice. I don't think the novel is worthy of reading though.