Adelheid Krueger

Background
Adelheid is one of the main Antagonist of Volume 6 not much is known about her currently.

She self proclaimed herself as the Grey Savior of Grace. She had destroyed the nation of Toris in order to fulfill the prophecy. We are currently not sure why exactly she is so fixated on the prophecy of the prince that will slay the Demon King.

Abilities
She could summon a white beam that envelops an area and utterly destroy it.