Hii-chan

Driven by a pure and innocent spirit, this adorable mermaid communicates using a charming Hakata dialect. She shares a deep, affectionate bond with Muromi, whom she affectionately addresses as "Onee-tan." Beyond her sweet personality, she harbors an intense passion for dolphins, making her one of the most endearing characters in the series. Her bubbly nature and unique way of speaking bring a special warmth to every undersea adventure.