- JM Animation, director Lee Seung-Gyu
- JM Animation, director Kim Sang-Jin
- Dongwoo Animation, director Nam Jong-Sik
- Film Roman, director Victor Cook
- Production I.G, director Yasoumi Umetsu
- Manglobe, director Shukou Murase
Hmm, which one would you buy? I kinda like the come-hither look of Manglobe's, but it's hard to go wrong with Production I.G...
(Source: Most of these came via Kotaku, but for some reason their copy of the Dongwoo cover didn't work, so I snatched one up from IGN.)
Oh hey, and we have a trailer for this!