Nightmare Phantom

"'The Demon that tortures the light.'"Nightmare Phantom was one of the minor antagonists, then soon, became a protagonist after a sudden recall of his past. He obtains the highest title "The Class L Demon" after slaying millions of people, and is often feared by humans, angels, & demons.

Appearance
He is a tall, muscular man with pale purple skin, long dark purple hair, with purple eyes. (There are also red lines present in the iris as well.) He wears an Obsidian-coated (its like, purple on the verge of being black) armored suit. (to give you an idea, it looks like a badass, Valkyrie style armored gown if you ask me)

His weapons of choice are a nefarious sword & cannon lance named "Demonic Bladed Claw"  & "Gehenna's Cannon Lance".