Elkaver

"Scourge the land! Burn the houses! Purge! Purge! PURGE! That is my life! War, blood, blades and battle! If you've been around my era, you would have been a fine soldier, but at your current state, you're even weaker than a poppy! But I...I will make you a true soldier!"

- Elkaver to Alvise Livyatan, deciding to train him Elkaver (エルカバー, Erukabā) is an ancient warrior of Bellum, having leaved over 300 years ago, battling in its greatest wars, becoming an infamous monster known as Great Warrior of Bellum (大戦士のベラム, Daisenshi no Beramu), the strongest fighter of her era, as well as Demon Woman (悪魔女, Akuma Onna), for her vicious nature. After dying, her spirit wandered in Bellum without rest, until her spirit was eventually sealed within Alvise Livyatan's body, after his misuse of Seith Magic's Human Possession, forcing the two to join, sharing a single body, with Alvise in control.