Species: Human Age: 17 Gender: Female Appearance: School uniform, black hair, black eyes, half-up hair with a black ribbon. Traits: Boy-crazy, hates other girls and looks for chances to kill them, thinks she is pretty even though she is ugly. Personal Color: Black

Species: Grim Reaper Age: 1870 (Appears 17) Gender: Male Appearance: Navy hair, navy eyes, navy reaper robes, navy register of the dead. Traits: One of the Yokai School's Big Four, best friends with Sireu, has been in the same school and class as Guest since elementary through high school, arch-enemies with Guest, partner with Sireu, incredibly handsome. Personal Color: Navy

Species: Vampire Age: 1870 (Appears 17) Gender: Male Appearance: Black hair, red eyes, vampire attire. Traits: One of the Yokai School's Big Four, best friends with Reneu, does not drink human blood, partner with Reneu, incredibly handsome. Personal Color: Red

Species: Gumiho (Nine-tailed Fox) Age: 1870 (Appears 17) Gender: Female Appearance: Sky-blue hair, sky-blue fox ears, sky-blue flower ornament, sky-blue clothes, sky-blue eyes. Traits: Usually has only one tail visible, best friends with Guest, partner with Guest, one of the Yokai School's Big Four, gorgeous. Personal Color: Sky Blue