Initially she is depicted as beautiful but stern and bent on revenge for the capture of her best friend, Noel. During school, she accidently wears the boys' uniform instead of the girls. Rina Toin ( 洞院リナ, Tōin Rina) Voiced by: Mayumi Asano Rina is the Mermaid Princess of the North Atlantic Ocean and keeper of the green pearl. Her idol form is Aqua Pearl Voice, although the first time that it is named in the manga, she is erroneously called Blue Pearl Voice. In the Pure season, she develops an interest in a boy, Nagisa. This worldliness is evidenced by many of her actions-especially by her romantic pursuit of her music teacher, Tarō Mitsuki. She is perky and feminine and a bit more worldly than Lucia, although she tends to be lazy in cleaning.

Unlike Lucia, Hanon goes up to land to escape water creatures. She is Lucia's best friend, but fights with her like any teenage girl. Hanon Hosho ( 宝生波音, Hōshō Hanon) Voiced by: Hitomi Terakado Hanon is the Mermaid Princess of the South Atlantic Ocean and keeper of the aquamarine (水色 mizu-iro 'water-color') pearl. When attempting to transliterate the kana back into Latin characters, some people, unaware of the Italian spelling of the name, tried using the English 'ch' to represent that consonant, resulting in the incorrect spelling 'Luchia'. That pronunciation is correctly represented in Japanese kana as るちあ. The Italian name, Lucia, follows Italian spelling rules, which say that 'c' is pronounced as a post-alveolar affricate (the same sound that is written as 'ch' in English) when it appears before a front vowel (in this case, 'i'). Some western fans spell her name with an 'h' due to a misunderstanding of the spelling systems of different languages. Of all the mermaids in the series, Lucia's mermaid form and human form contrast the most (Lucia has short dark blonde hair and brown eyes in the surface while having long lighter blonde hair and light blue eyes while at sea). Overall, no matter what the situation, she never gives up hope. Lucia now has the job of retrieving all the pieces of her heart contained in Michel's feathers. In the Pure season, Seira, is about to be born as well, waiting to meet Lucia. She is characterized by her simplicity and naïveté, but with having a strong will, typical traits of shōjo manga heroines. She is unaware of the danger in the marine world and of her real mission until she is told of them by her 'big sister', Nikora.

Later in the series, Lucia and Kaito become lovers. She goes up to land to search for her pearl which she used to save a boy named Kaito seven years ago. Lucia Nanami ( 七海るちあ, Nanami Ruchia) Voiced by: Asumi Nakada Lucia is the mermaid princess of the North Pacific Ocean and keeper of the pink pearl. Three DVD covers showing the three forms of the main characters Lucia Nanami (blonde), Hanon Hosho (blue), and Rina Toin (green): mermaid (left cover), human (center cover), idol (right cover).

Pichi pichi pitch hanon