Akuba (悪罵, Curse) is a small, doll-like entity that has bound itself to Rei Mokuzai , serving as his familiar. Little is known about the creature, even by its master.
Akuba takes a form not unlike a doll. Her head and body are bright pink, with her head shaped like a piece of wrapped candy. She has a white mask-like face, blank and expressionless. Her eyes appear black in their entirety, although if one were to look closely the right eye has a red pupil and the left has blue. Under her eyes are yellow blush stickers.
She wears a long-sleeved garment, and the sleeves are easily one-and-a-half times the length of her body. Over that, she wears a blood-red cape with a ruffled black collar that has red spots.
For a demonic familiar, Akuba is rather child-like and playful. She causes mischief in her wake, although not maliciously. To her, the havoc she brings is simply her playing a game, while being blissfully unaware of the ramifications of her actions, seeing them as harmless despite the damage done.
As Rei’s familiar, she obeys his commands without argument. She’s very shy around people save her master, but quickly warms up to those that the man trusts, and will often latch onto them playfully. She doesn't like when females that she doesn't approve of get anywhere near Rei, showing a violently possessive side to herself, not at all unlike children who seek monopolize their parents' attentions for themselves, although she might be acting out in his defense rather than a selfish desire.
Magic and Abilities
Enhanced Strength: Despite her small size, Akuba has physical strength that rivals fully grown humans, allowing her to lift and throw things many times her size without any visable effort on her part.
Enhanced Speed: Transformation Magic(変身魔法 Henshin Mahō): Akuba has the ability to transform herself into an enormous black worm-like creature with a painted face resembling a clown. Purple spots dot are arranged all over the transformed familiar’s body. While transformed, Akuba can carry Rei and those that she herself approves of through the skies.
Teleportation Magic (瞬間移動の魔法, Shunkanidō no Mahō): Akuba, should she be separated from her master, can use a minor variant of teleportation that allows her to return to his side at any moment unless barred by a barrier of any sort. Unlike normal teleportation, this only works because of her link with Rei and cannot be used for any other purposes.
Levitation: While in doll form, Akuba can levitate around, allowing her to reach objects that otherwise could not be reached.