Review Detail of Grenizu in Owari no nai Kurushimi

Good and interesting story, but when it comes to first impressions, given that it's an isekai, it'll seem typical and probably bad. Unless, the author make Rei and the isekai little interesting. I talked with the author and his original idea was some kind of death game and something like Re:Zero. I hope he use those idea in his story. I have seen no flaws in the story at the moment, so I'm going to rate it a 5/5. Check out the story!