Rina TOIN

Rina Toin is a 16-year-old high school student who lives in the fictional town of Fuuto. She is a mermaid who has the ability to transform into a magical girl by using her "Melody Key". Rina is one of the seven guardians of the ocean, and she is tasked with protecting the world from the evil forces of the Sea Witch, Queen Otohime. Rina is a kind and compassionate person, and she is always willing to help those in need. She is also a talented singer, and she uses her music to help others. Rina is a strong and powerful magical girl, and she is determined to protect the world from evil.