Anthea

Bio
A Demon King which was sealed inside the Carlet Oldtown. Her brutal personality became even more twisted and crazed after being sealed for a long time. When she was sealed, she kept on planning her escape and used her voice to captivate those who went into the Oldtown. As a result, her seal was broken and she escaped.

Anthea is good at swinging huge swords. She is also stealthy such that her opponents can't really grasp her whereabouts.