Mireille is very caring towards people, particularly towards The Mayor, Saxon, which she's the Maid of. She seems to put quite a lot of her time into her job although she seems to fret too much over small things. She seems to be quite attached for people and seemingly has issues and fears of being abandoned, as In one of the random events after in the first few days, she seems to be nice out of the idea that someone that could leave her. She also seems much more nervous than most of the people in community, as she doesn't seem to go away from people, she is usually seen either in the Mayor's house or out thinking about the Mayor.

She seems to also have a tendency be somewhat obsessive over things, usually wondering over if the Mayor's okay or if the Mayor actually likes her or not. Although she seems to be quiet about her quite obvious crush on Saxon, everyone seems to know which could suggest she's not good at hiding things about herself, particularly about the things she is interested in.