As the heir to the Miload Family, Annerose is mentally mature for her age. She is used to having Demi Humans around as she lives in an environment where many of them work. She has good relations with Emilia, who she refers to as Emily, though if the two of are compared Annerose seems like she is older than her. Due to her excessive expressions of love to Emilia, Subaru considers her a rival in love.