Cosette

Summary
One of Liselotte's maids, she works for her as chamberlain and as her personal bodyguard, there's a draw between her and Natalie as the second strongest of Liselotte's maids, she already worked for Liselotte when Rio was framed since when exactly she has worked for them is unknown, famous between her coworkers as good at analizing people and at drawing advantageous conditions from the Rikka firm's customers she makes deals with.

After seeing Rio's battle at the end of volume 6 she would begin to try to shortening her distance with him and dating Rio would become her goal, but until now all of her attempts were fruitless and just for the sake of the comedy.

Personality
Sociable and cheerful, good at understanding the limits between men and women and at analyzing people.

Relationships
Liselotte Cretia : her employer.

Aria Governess : her coworker and leader.

Natalie : her coworker and friend/hater.

Chloe : her kouhai.

Amakawa Haruto : her crush.

Abilities
She possess combat training on par with knight, a halberd user well able of defeating one on one a revenant with relative ease.