Published in the U.S. by Del Rey Manga
This book made me laugh. It was almost as funny as Samurai Champloo, in fact. Problem is, I don't think the writer intended it as a comedy.
Oh, and the publisher had to change the girl's assless chaps into jeans for the front cover. Because if you're flying through the air on magic rollerblades, assless chaps are exactly what you want for those rough landings.