Kanon Mizushiro
Ruby's classmate and the main heroine of the series. She comes from the human world to study at the Sunshine Academy to achieve her dream. She can be very posh, mean, and nasty. Having a rather warped friendship with Ruby, she sometimes gets into serious arguments with her, to the point of trying to rip each other apart on one occasion. But in the end, both she and the Jewelpet reconcile with each other and sometimes even cooperate with each other in the worst situations thrown at them. She has a habit of writing love letters and has a crush on Mikage.