I just finished reading all the scanlated chapters, and WOW, there's so much to talk about that I don't know where to begin. Kokou no Hito is a manga that's definitely in a league of it's own. The art is breathtaking and the storyline intense, as it focuses not only on the physical difficulties that Mori encounters when he climbs, but also the psychological horrors.
I did have my doubts at first, as the story does start off as a seemingly typical shonen sports manga, but was pleasantly surprised by the maturity and depth that soon developed. And then when it began to progress into more darker themes and Mori began to sink into his loner depression, I thought that it might end up as one of those stories where the protagonist goes mental and psychotic and the manga ends up as one big overwhelming mess of insanity. However, it did eventually take a turn for the better when it settled down and established a lighter tone in the story.
All I can really say, I guess, is that this manga is truly one of a kind. Even though I found myself horrified and disturbed by a lot of what happens in the middle of the story and really just wanted to put the manga down, I was simply unable to stop myself from reading. I got hooked and couldn't let go.
I think the best part of the manga is that the mangaka does a great job in making this much more then a typical sports manga, by accurately portraying the consequences of what happens when humans are pushed into life-and-death situations (where your survival is literally dependent on your teammates' deaths) as well as the insanity that can also happen as a result. I would definitely recommend this to people that enjoy realistic, action-packed, and intense stories.