MC was a stupid guy from chapter 1. Nothing surprising to see here.
Man, it's so annoying seeing a good foundation of a story to be butchered by the authors who don't know what to with it.
And thank god for that. Good stories don't need endless padding.
I dunno if this particular one qualifies as "good" because that's fairly subjective for the reader, but I respect an author who knows how and when to write an ending.