He Couldn't Take It Anymore

First the cold, and than a vengeful demon. How will Masahiro and Guren survive? Will they save each other? Or, perhaps, will their world come tumbling down? A villain who steals Guren's flames, a new power awakened inside of Masahiro, and a torture that is the same, yet different, for them both. Yes, this is a good story you should read and review. Masahiro x Guren hinting