The first episode introduces the characters, their personalities, and motivations in a lightning-quick pace. Considering that it has only three episodes, that's totally understandable. Still, there are a lot of indications that production was done in a rather lackadaisical manner; animations were stiff and character designs are a bit generic. This is balanced out, however, with the backstory of the main cast, which looks rather promising. I'd like to check out the series more to provide rightful verdict, but for now it was a nice attempt. Hope it improves as it goes.