Surname: Kurogami. Gender: Male. First person: I (casual). Age: 17 (11th grade). He is possessed by over a hundred evil spirits. His ability is 'Hyakushiki' (Hundred Styles).

Surname: Sanzukawa. Gender: Female. First person: I (polite). Age: 17 (11th grade). Yuma's childhood friend. Her ability allows her to let spirits possess her to use 'Jujubaku' (Curse Binding), but if she remains possessed for more than ten minutes, her body will be taken over.

Surname: Kurogami. Gender: Female. First person: I / Big Sister. Age: 20 (College sophomore). Yuma's older sister. Her ability enhances her strength and speed to levels no human can match.

Gender: Male. First person: I (rough). One of the first evil spirits to possess Yuma. His ability is 'Shadow Prison,' which can bind and crush enemies.

Completely unable to read the room. Gender: Male. First person: I (casual). Ends sentences with '~dayo' or '~janai'. His ability is 'Maihime Sakura' (Dancing Princess Cherry Blossom), using a katana to blow enemies to smithereens in an instant. An evil spirit residing in Yuma.

The Demon Lord of Magma. Gender: Female. First person: I (neutral/boyish). Speaks with a commanding tone ('~dana', '~suru ga yoi'). Her ability is 'Oborobi' (Hazy Fire), which forces enemies to see illusions or their own traumas.

A member of Shadow and an enemy to Yuma and the others. Gender: Male. First person: I (casual). His ability is 'Gohoujin' (Five-Way Array), which takes the target's shadow as a decoy and sacrifices the target to be eaten by five evil spirits. Unless the spirit beasts in the four cardinal directions and the center are defeated within one hour, the target is consumed.