Karen Minazuki is a fictional character from the anime series 'Yes! PreCure 5'. She is a high school student and a member of the Pretty Cure team, where she transforms into Cure Aqua. Known for her intelligence, maturity, and elegance, Karen plays a vital role as the team's strategist. She initially appears reserved and distant but gradually opens up to her teammates, forming strong bonds. Her character development throughout the series highlights themes of friendship, responsibility, and personal growth, making her a key figure in the storyline.