Well, I must say it’s an interesting way for a seinen-targeted Mahou Shoujo series. Gen Urobuchi delivers, I guess.
But yeah, I didn’t expect it. In fact, I didn’t (and don’t) expect anything story-wise since he (Urobuchi) is a bit of mystery (or more like, random) box. On one side, being in Nitro+ and one of the person respected by Kinoko Nasu must mean something but on other side, being the writer of Blassreiter (with it’s lol-inducing storyline and not helped by QUALITY animation) and Phantom (well, rather normal – nothing too exciting apart from the fact that there’s slight discrepancy in term of GROWTH) means, um, something else (in bad way, yes).
We’ll see how the events unfold. I don’t know whether it’ll be a singe cour or multiple cour. Someone guessed a single cour and one of the catalog site also mentions 12 episodes (albeit with missing titles) while somewhere else there’s no mention of number of episodes.