To the person saying the characters were stereotyped... Uhhh, dont see it. Oh yeah, what do you mean by 'scare factor'? This wasnt a horror manga.
Anyways, Ive never read a manga that was this relatable on an emotional level. Of course the characters personal circumstances are far from most of what I have experienced in life, but the emotions these situations made them feel and how they affected their view on life was relatable to an almost scary degree. Its funny, I could actually see some of my friends in these characters. Sadly not all of them were as fleshed out as otheres. The only characters which were properly fleshed out were the ones that were needed to drive the story forward. Usually that would make sense, but in a manga about a mental battle between 10 people you would think they would go more into the psyche of all the participants. Anyways, I cant really give a proper review since this manga made me feel too many types of ways for me to give it an unbiased judgement.