Talk:Demon/@comment-26911558-20150827155947/@comment-25035274-20150827160812

Technically, the Demon Lord's title in Japanese is "Maou", which can be equally translated to Demon Lord or Monster Lord, as Japanese doesn't have seperate words for the two concepts (Demon and Monster, I mean).

That said, the Devil is a Devil, the Demon is a Demon. KC chose those specific English names, so it's what we go with.