The "Rave Master" manga and anime series features an extensive cast of characters created by Hiro Mashima. The series takes place in a fictional universe that exists as a parallel world where vast numbers of humans as well as species known as sentenoids and demonoids fight using weapons, magic and evil artifacts known as Dark Bring (Shadow Stone in the anime's English dub). One of the most primary users of the artifact known as Dark Bring is an evil terrorist organization known as Demon Card (Shadow Guard in the anime's English dub) which plans to use it to take over the world and bring it into darkness.