Karen Minazuki is always sweet and kind. She is a third-year student at L'École des Cinq Lumières, and is also the student council president. Her alter ego is Cure Aqua, which is known as the Precure of Intelligence. She is 18 years old and plays the violin, maybe other instruments too. Karen has dark blue eyes with thick eyebrows. Her matching colored hair is loose with some strands over the left shoulder and her bangs brushed to the left. She is a mature young woman and is enthusiastic.