Minamin

Referred to as the "Academy's Princess," Minami who is a fourteen-year-old sophomore at Noble Academy as well as the student council president. She has a strong sense of responsibility, cares for others like a gentle sister, but can sometimes feel lonely. Her dream is to become a respectable person that can be useful to others. After meeting Pafu and Aroma, Minami became Cure Mermaid, the Princess of the Sea whose theme color is blue.

(Source: Pretty Cure Wikia)