Oni

Oni is a category of Demon, which splits in many other demon.

Characteristics
Oni tend to be powerful and intelligent, selling their services as masterful mercenaries or guards. Typically Oni are human like of different size, with horns.

High ranking Oni can wear armor or noh (Shite) masks, that suppress or influence their emotions. Acting rather calm having no real personal grudges they also prefer more traditional weapons. While low ranking Oni can almost be animalistic. The more powerful Oni can have powers even beyond that of a normal Taimanin and perform magic.

Oni (Types)
They fall into multiple groups from rather low ranking Goblin and Ogre to the high ranking Rakshasa.

Appearance
Oni look mostly human but have key differences, they have naturally muscular build, long ears, upstanding hair and long fingernails. Glowing eyes, pointy ears and two horns. Both their hair and body share (sometimes) a simular color.

Goblins are considerably smaller, while Ogres are larger.

Powers/Abilities

 * Tool Use: Use their Noh mask they can control their emotions, weapons or armor.
 * Enhanced physical abilities: They are exceptionally strong beings, theoretically capable of capturing Taimanin. Their strength is compared with Asuka's mechanized strength.
 * Berserk Mode: Higher ranking Oni are able to enter a Berserk mode multiplying their abilities beyond the limit, this can lead to the death of an Oni even if he wins the battle itself.
 * varies with type

Examples of Oni

 * Red and Blue Oni
 * Reiga
 * Kureha
 * Kycilia Oswald
 * Lark Shasha
 * Onisaki Kirara (half oni)