Umi Ryuuzaki is a fictional character from the anime and manga series Magic Knight Rayearth, created by CLAMP. She is one of the three main protagonists, known for her strong-willed personality and her ability to control water. Umi is depicted as a high school student who is transported to the magical world of Cephiro along with her friends, Hikaru Shidou and Fuu Hououji. In the series, Umi wields a sword and uses her water-based magic to fight against various enemies. Her character is often portrayed as elegant and confident, but she also struggles with her emotions and relationships, particularly with her friends and the prince, Ascot. Umi's journey involves personal growth and the importance of friendship.