She is a high-energy teenage girl who dedicates herself aiming to be number one. Her catchphrases are including "Mia ga Ichiban!", "GA-GAAAAAN!" when she is shocked, and "Ki Do Ai Luck!" (Motivation Passion Love Luck). Although she seems quite dim-witted and straight-forwardly unintelligent, her straight-forwardness and simpleness are what keeps her going. Everyone in Prizmmy knows that Mia has a bad way of saying things, but she means no harm towards anyone. She never lies and always plays by the rules. Mia is always encouraging others and always keeping things positive.