It has what looks to me like a good cast: Ono Daisuke, Mizuki Nana, Chihara Minori, Gotou Yuuko, Sawashiro Miyuki.... But the only thing the
director is said in ANN to have directed is
Transformers:Cybertron. He directed and storyboarded episodes of
Mai-HiME and storyboarded one ep of
FMP.
It appears to be original, since
Maekawa Jun is credited (in a post below translating the home page) with the "original concept." He wrote
Prince of Tennis and the new
Sisters of Wellber, among other things. But the home page doesn't yet have a "story" section. I believe the tag line is: "At that time I thought: I am not alone...." If I were to hazard a guess, it would be that this is a romantic fantasy adventure with a mixture of
shounen and
shoujo elements.