The Unnamed Oni-Like Demon was amongst the many to attack Japan while Devilman was in space.
The Oni-Like demon as the name suggests vaguely resembles a Japanese Oni of old tales. He had blue skin and short messy blond hair and a large brown horn. He had large goofy teeth and tired eyes.
As Devilman hunted for Dremoon in the depths of space, Zennon called forth a large group of demons to go out and attack the human world. The Oni-Like Demon was amongst the group who traveled to Tokyo and began to tear up the streets.