LEAD - Penny is a student at the academy originally from the Galar region with a shy personality and is mostly absent from class. She is first seen in Mesagoza where the player witnesses her being harassed by Team Star Grunts. Her secret identity is Cassiopeia, the big boss of Team Star, though none of the other members know of her true identity because she never left her room during her time. Her voice is disguised to protect her true self as Big boss.