Teacher! One of Lydia's Mentors! Yay! Oh, forgot to add (hence the edit) Olivier might have trouble with Lydia out in the field, in terms of teaching HER to fight monsters. Mostly b/c with all of Lydia's friends in the Neitherworld, those who often look like 'monsters' are also often times her FRIENDS.

So...fighting in any thing but self-defense? 's gonna be tricky. Fortunately, she's starting to teach her from scratch.