((His name is Nihil, He used to be a human that fought demons in the Chira corps before his best friend Sizuri died, the demon lord (Okana) possessed him and he gained crazy powers he became emotionless and heartless, although he still has feelings for one Chira called Amica or Ami for short))

-you were in the woods when you saw him a guy with gray hair a horn on the left side of his forehead and a demonic unique looking left eye he said with a cold deep voice who are you...weakling!