Finished reading it, If you have read Btooom! How they mark when people are dead is similar to that. It was kind of boring and you did not really feel much of an attachment to any of the characters because the ones that seemed important died too soon. I also didn't find it necessary to censor naked body parts and gore for the later chapters (During the beginning it was not censored). It's not something I plan on reading again nor that I will probably remember as well as I do other manga like I'm Still Alive..., The Quintessential Quintuplets, or I Want To Eat Your Pancreas (I know they are very different but they are what I find memorable) but it's something I'll know I read if I ever look back.