Sasha



Sasha was one of Brimir's familiars she made a pact with Brimir to allow him to experiment on her but he made her his familiar, something Sasha was not pleased about. In his defence, Brimir meant no harm to come to Sasha when he made her his familiar.

Sasha killed Brimir by stabbing Derflinger into his heart while he tried to kill off the elves for reasons not yet revealed as of the 19th Light Novel.

Trivia

 * Despite already being a Gandalfr Sasha was also The Heart of God as well, similar to Saito Hiraga 6000 years later.
 * She was the person who made Derflinger as well as the first person to use it.