Umino Kara

Umino Kara (海の殻 Umino Kara) is one of the main Cure in Royal Rainbow Pretty cure. She is the princess of Blue Kingdom. She is 16-year-old girl who is energetic and always happy. Kara's alter ego is '''Cure Blue. '(キュアブルーKyua Burū''). Her catchphrase is "it's party" (それはパーティー Sore wa pātī).

Personality
In the beginning, she was serious and noble. She is the president of the student council at -. As she is the blue princess of wisdom, her family have always obliged her to work against her will. But thanks to Rosa, she became the Cure of happiness instead of the Cure of wisdom. So, she become cheerful and optimistic