Meh, it was okay. I only got it since I liked the author's 死神姫 series.
What really bothered me was how annoying the female character was. Does she really have to scream like that every time something remotely shocking happens? Ugh...
And I guess it's going to be a series now? Well... I guess I would get the next book, but only because the ending to this one fell flat. Maybe it will get better? One can only hope.