Shueisha, one of the largest publishers in Japan, went into the red last fiscal year, a first for the company, but its manga division wasn't to blame. The publisher took hits on ad revenues and real estate holdings, as well as slipping book sales in several categories, including literature, which went down 2.8%. Manga, on the other hand, did pretty well; sales of Weekly Shonen Jump, their flagship magazine (which includes the insanely popular One Piece) and individual volumes of manga were both up in the past year.