Luccen

Luccen, Lord of Twigh nlet used to rule the shadow world but when Justin turned 18 he vanished. He is now somewhere on Earth and the only proof is Gladio who is a body manipulating swordsman who was taught by Luccen himself.

Lord of Blood
Luccen is the only known being to compare to Lou. In fact it is known that they where freinds as kids, both constantly training to become better than one another but they both always were equal, fighting ohours and hours only to decide a draw every time. Then they had kids and split ways to raise their kids with no distractions. For whenever they were with each other they would train and train and train.