Well, I wasn’t expecting Rentarou to bawl like a baby in the final scene. That was kind of a strange way to end the series. I was more expecting Kagetane to be the sacrificial pawn in the battle against Aldebaran, but Shoma made more sense given the nature of the task that needed to be fulfilled. It did make the scene where Rentarou knocks Enju out pretty pointless though.
I’m not entirely sure what to make of the scene with Kisara near the end. The timing made the whole deal with Kisara’s revenge seem like an afterthought, almost like “Oh, by the way…this is the real culprit”. Probably could have handled that better. Anyway, unresolved endings as usual…