Catenamira

Catenamira (カテナアミラ, Katenaamira) is the God of the Heavenly Gate.

Appearance
Catenamira takes the appearance of a majestic gate with limbs attached to it and a creepy face on it.

Demon King's Father Arc
Kasim invoked him in attempt to trap Lay and Misa, as they couldn't follow him via  due to the effects of Holy Barrier Sealing Area , while Catenamira's order would allow him to bypass it. However, Catenamira's power was nullified by Misa's Dark Area , which forced Kasim to same area he left. Kasim would later allow Catenamira to possess him in attempt to increase his own power via  in order to gain an upper hand in his battle against Lay.

Abilities

 * Immense Magic Power: As a god, he possesses immense magic power, having a near bottomless magic pool that can only be used up when doing something of extraordinary magnitude.
 * Authority of the Heavenly Gate: As the God of the Heavenly Gate, he possesses the ability to create Heavenly Gates, which can be used to travel to any location he chooses; even those that are sealed off by barrier magic which negates Teleportation , as well as amplifying the power of magic that passes through the gate.
 * Conceptual Existence: Gods maintain and embody the order and laws of the world.

Kasim
His chosen Selected for the Selection Judgement, whom he made a pact with.