Mimi has a cheerful, innocent personality. She does things at her own pace and can be selfish, but she's fundamentally a kind girl whom everyone likes. She likes singing and is good at it, but she has peculiar tastes in music, due in part to influence from her parents. Mimi was living in America because of her parents' jobs, but now she's returned to Japan. Living abroad for a long time has taken the edge off her naïve nature.