Hanon is the Mermaid Princess of the South Atlantic Ocean and keeper of the aqua pearl. Unlike Luchia, Hanon goes up to land to escape water creatures. She is perky and feminine, yet a bit more worldly than her friend Luchia. This worldliness is evidenced by many of her actions—especially by her romantic pursuit of her music teacher, Tarō Mitsuki. Her idol form is Mizuiro (Aqua) Pearl Voice, although the first time that it is named in the manga, she is erroneously called Blue Pearl Voice.