Which Yuzu versions are you using?
Tyrant Belial: One of the 72 demons of the Lesser Key of Solomon. He is a great king who leads 50 armies. He was originally a Seraphim, a high-ranking angel, but lost in a political dispute of Heaven and fell from grace.
Lady Ishtar: An Akkadian goddess of lust and war. In the "Epic of Gilgamesh," she made lovers out of many heroes, but after a while she would kill them or change them into animals.