エルヴィール

A Suima noble who knows Klaus and Helmina. She derives personal satisfaction from the thrill of battle and spends all of her time training for battle if she's not involved in one. Her lust for battle is so strong she will happily fight her own kind if there is no suitable opposition around and she's in the mood for combat.

 She knew Klaus and Helmina well before the story starts and is well aware of Klaus's current state. Both of them in turn are fully aware she's obsessed with fighting and prefer to be as far away as possible from her since Elvire is almost impossible to stop when the mood takes her. Interestingly enough, neither Klaus nor Helmina knew they had a mutual acquaintance in Elvire until they encountered her. 

Her insatiable lust for battle put her at odds with Klaus, yet she rates his ability to think his way through any battle despite his current frailty highly. 

If captured in battle, she will help Klaus in his quest as one of his soldiers. As a Suima noble herself, the only thing that keeps her under Klaus's command is losing to him in battle and the interesting battles she will enjoy while serving under him. /