みい

Mii is the youngest sister. She has light purple hair which is often tied in double buns on her head, except when she cosplays "Magical Girl Mii"; she then wears it in twintails. Mii goes to the same school as Mai. Mii is the most energetic, perverted and naive of the three. She goes around asking Chris to play with her almost anytime she sees him and loves to cosplay as a magical girl, "Magical Girl Mii", trying to help others out around town, though the results often vary. [From Wikipedia.]