Luin

Apparently, she used to be called by another name; Luin is just an alias that Rufus gave her. She was born under an unlucky star, fated to be betrayed by a friend. Until she met Rufus, she cut down countless friends with her own two hands. She has no recollection of her name or past, making her a loyal familiar who is single-mindedly devoted to Rufus. She doesn’t seem to get along well with Durandal, but she actually has total faith in him.