Onemamac was a briefly seen minor antagonist from the second OVA, The Demon Bird.


Divergeing greatly from his origonal appearance, Onemamac was a tall thin demon with yellow skin, on each hand was a large scythe like claw, he had a small face  on his crotch and two more heads on long necks, the left head resembled a bird with a blue furred mane going down its neck, and the right had a large singular eye.

Powers and AbilitiesEdit

Onemamac was able to cut at his foes with his large claws.


After Sirene was badly hurt in a lengthy battle with Akira Fudo she calls upon Lord Zennon to send help. He does so and sends out a group of demons to assist her, among them was Onemamac. however he proved to be of little threat to Akira who picked him up and threw him onto a broken tree, impaling him through the chest.