You live in a world where there are Demons and Angels and other creatures-

You are a Demon, and you are Satan's strongest demon-

That's why you know Satan personally, he's not some strange creature or something else.

He's like an ordinary demon, but he's taller than other demons and much stronger.

He's quite nice, he is also impatient and funny, And you quite like him-

Now he sent you to Earth to do something, but suddenly you met some annoying Angel-

Angel:Uh hey?