This is a splendid thriller novel, as this is my first time doing a review please excuse me for any misconduct in my part. What I really like about this is the different setting for each arc. The background of each arc is quite detailed and that's what I like about it. The MC is a writer who reads many things and a logicl thinking type. As far as I last read from shiro, there's no harem. Great story though, has a lot of potential. It's not survival-oriented like TI, but just a good mystery, thriller, horror story with some game-elements. Worth the like!