The Soul Eater manga and anime series features an extensive cast of fictional characters created by Atsushi Okubo. It is set in a fictional universe inhabited by various characters capable of using supernatural powers by channeling the wavelengths of their souls. Most of the characters in the series, including the main protagonists, are classified into two groups: humans who are born with the power to turn into weapons, called demon weapons, and the wielders of these weapons, called meisters. The main protagonists attend a school called Death Weapon Meister Academy—DWMA for short—located in the fictional Death City in Nevada, United States. DWMA is run by Lord Death, the Grim Reaper, as a training facility for weapons and meisters to hone their powers, as well as an organization to preserve world order against anyone who threatens it, including witches, monsters and evil demon gods called kishin.