Masamune Nakatsukasa

Masamune Nakatsukasa is an extremely dangerous weapon and Tsubaki's older brother and the one that was supposed to inherit his clan's power. He wanders around, possessing others to use him as their weapon to collect any soul he wants. He plays on the fears of others to possess and use them until he takes over their soul.

Meister of War
He is brought back to life by Zeus, so Zeus can make Tsubaki's life even more miserable.