Mephisto

"They call me the one horned Devil, but they really don't know how the real Devil looks like..."

Mephisto is a feared Halfdemon, who walks in the shadows and often fights against Demons, but claims not to be a Devil Hunter.

As "The One Horned Devil", many Devil Hunters try to challenge him, since he is rumoured to be one of the strongest demons. Only Dante (Canon Character) managed to defeat him so far.

He is a rival of Nero (Canon Character)