Rave Master, titled Rave (レイヴ Reivu?, romanized as RAVE) in Japan and also known there as The Groove Adventure Rave, is a Japanese manga series written and illustrated by Hiro Mashima. The series follows Haru Glory, a teenager in a quest to find the five pieces of the sacred stone Rave in order to bring peace to the world by defeating the criminal group Demon Card. Mashima created this series with the idea of travelling around the world and was presented with difficulties in its serialization due to its considerable length.