This manga was all sorts of crazy. The premise at its core is of a guy who is pretty much normal but wants to be part of something exciting, getting his wish by being thrown into what he wanted and discovering that it's nothing like what he wanted, but rather something terrifying and somewhere he doesn't belong at all, after which he somehow manages to pull himself together to pull off being more than simply pathetic. This premise was quite interesting. However, the implementation of such felt all over the place. First off, the setup, which is pretty much all just one event, takes up the whole manga. It adds too many characters that don't seem to have much point at all, furthermore spending a good amount of time on each one, which ends up making things overtly complicated without any payoff. It felt like it was going for the point when it was finally revealed what was going on to be shocking or a twist, but at that point you're not really invested in any of what's going on since its been changing so rapidly so it didn't really hit that beat at all. And just as we move past the prologue, and it seems we are finally seeing the beginning of the main plot the manga just suddenly ends, though with a really awesome ending shot. Really, a lot of the manga was quite cool, though a lot more brutal than I expected, with Tokage managing to seem quite cool when he wanted to, and Sugamo also being interesting in that I like crazy characters like her. But as the plot just fell apart as soon as it started going somewhere, that's all it has going for it. The art was pretty good. 

tl;dr: A manga that’s incredibly messy that ends right before the plot starts moving, though it still manages to be pretty cool.