This is one totally underrated piece. I watch low rated films with my finger on the "skip" button, just to make sure that I'm not missing out. This time I didn't use it even once. Story: One of the rarest occasions when you watch fantasy/Sci-Fi/supernatural and in the end everything make sense. The plot is not too twisted, but well thought through. No Deus ex Machina, no "figure it out for your self" parts. The story flows smoothly and the ending is not trivial, but conclusive. Art: The style is a bit old, yet thoroughly done, nothing extraordinary, except for the fight scene, that was pretty intense and visual (bloodand guts all over).

Characters:
Yea, that is the best part. Usually I'm not just picky, I'm fastidious. But in this anime every one was in his rightful place: the villain, the victim, the defender and the protagonist caught in between. The movie is short, so don't expect tonns of inner-world revelations, but on the other hand you won't see flat "fill the space" characters.

Overall:
I've enjoyed it big time. Probably will rewatch it some day. Very simple, yet respectable quality action-anime, with Sci-Fi twist and a bit of romance. Btw, shonen-ai in this movie exists only for those who reeeally wonna see shonen-ai and will find it anywhere, for the rest its just romance.