Again... I don't know why the author had to make the guys start bonding each other, but at least it doesn't (yet?) cross into the main stories, usually. I'm only reading these in case I miss something referred in the main books.
The plot that was in this book was pretty good. Kaito somehow found himself captured by Lucifer and his army, so the fallen angels on his side were learning how to torture using him. Finally, Azra took a go at it, but not for the same reasons. He wanted Kaito to embrace his true Kami self.
The tables end up turning and it turns into a quick 'screw.' Again, it isn't just because they want to - The author made it so there was a purpose for it. So while I don't like that the guys are hooking up together, too... I get it.
MM is not my thing. I don't enjoy reading it much at all. But J.R Thorne is doing a good job writing these.