In 1998, Hiro Mashima created Rave, his first professional manga. The man was just 21 when Rave ran in Weekly Shonen Magazine. In four years, the series grew into 18 volumes. This started the phenomenon and caused the series to be made into an Anime and several other forms of multimedia. In February, U.S. Publisher, Tokyopop released the manga as "Rave Master" in the U.S.