The area this anime suffers the most is the animation... The CGI makes the characters look doll like and almost expressionless, which is unfortunate as there are some very emotional scenes that fall short of their potential because of it, the only scenes that are well animated are the flashback scenes of when the characters are kids. But what lacks on the outside is compensated by a good, if short and simple, story, even with a limited time to develope them the main characters, for better or worse, don't feel empty. An overall enjoyable 12 episodes which i wouldn't mind a sequel to, just improve the animation.