Character Bio

Lucia Nanami (七海 るちあ Nanami Ruchia) is the main protagonist of the anime and manga Mermaid Melody Pichi Pichi Pitch. She is the first mermaid princess introduced in the series and is the princess of the North Pacific kingdom.


Season 1

Lucia is the Mermaid Princess of the North Pacific Ocean, keeper of the Pink Pearl, and the main character of the story. Lucia goes up to land to search for a boy she saved seven years ago. She is unaware of the danger in the marine world and of her real mission until she is told of them by her "older sister" Nikora. She is characterized by her simplicity and naivete, but with having a strong will, typical traits of shōjo manga heroines.

Lucia soon falls in love with Kaito, whereas he is unaware of this and is in love with Lucia's mermaid form.

Later on, after Lucia meets Hanon and together they befriend Rina together, Rina gets suspicious of Kaito, seeing he had a strange power she couldn't recognize. Soon after, it is revealed in the anime that Kaito is a child belonging to the Panthalassa, which is why he had his powers. When the Princesses reached Gaito's castle and defeated him, Kaito was finally sure Lucia was the mermaid he longed for all his life, later achieving a romantic relationship with her.

Season 2

Kaito decides to leave Japan and move to Hawaii where he used to surf with his adoptive father and try to find himself, due to a letter his aunt had given him earlier on in the series. When exchanging their goodbyes, he informs Lucia of the necklace he still wore, which previously held Lucia's pearl, and how it reminds him that he'd always be by Lucia's side and vice versa. After Kaito's departure, Lucia leaves crying and bumps into Rihito who tries to comfort her and would later on try to befriend her.

Lucia soon finds out through a phone call that Kaito disappeared and tries to look for him. Sara informs her that he's still alive though a vision in her spirit form. When he returns to Japan, Kaito reveals that he has forgotten his memories of her, as well as Hanon and Rina, however remembered everyone else which suggested it wasn't a coincidence. Seira, a mermaid of the Indian Ocean and Sara's successor is about to be born as well, waiting to meet Lucia. When her time of birth finally came, Mikeru seized his chance and absorbed Seira into his body causing her birth to be delayed. Sara begged of Lucia to retrieve all the pieces of her heart contained in Mikeru's feathers.


The Anime is mostly loyal to the Manga. In the Manga, however, there were two chapters that weren't included in the anime. Lucia caught a cold and in the last chapter, shivering in her bed and fighting for her life which caused Kaito to worry and stay by her side. Memories of saving Kaito from the tsunami 7 years ago start hunting Lucia. She remembers that when she saved him, the waves were too strong and she couldn't keep up. Kaito ended up saving Lucia with his Panthalassa's powers and when they arrived at the shore she gave him her pearl due to his unconscious state. The moment Lucia was about to give Kaito her pearl, Aqua Regina appeared before her and asked if she's sure of her action, in which she answered affirmatively. In that moment Aqua Regina reveals Lucia's destiny, to be Aqua Regina's successor. The chapter ends with Lucia waking up as the new Aqua Regina and talks with Seira about love. By the end she shares an embrace with Kaito.


Lucia is known for having a very upbeat personality and being generally optimistic. She also has a hobby of making handmade jewelry. Within the first arc of the series, it is uncommon to see her without a bright smile on her face. She has a very loving and caring heart as well as a talent for seeing the good in everyone. However, she does have a slight jealous side that often comes out in relation to Kaito because she's far from the only girl who is interested in him.

In the second arc of the series however, she is much more depressed due to her struggle of having to deal with the pain and loneliness of being forgotten by a loved one. Overall however, no matter the situation, she never gives up hope.


Lucia has dirty blond hair in her human form and bright blonde hair in her mermaid and idol form. She also has brown eyes in her human form but blue eyes while as a mermaid or an idol. She usually wears a shell locket that contains her pearl.

In her every day outfit she seems to wear either a white and red shirt with a denim skirt and knee-high boots. Other she seems to wear is the same outfit with the only difference being her shirt, which instead has big black and pink stripes.

In her Idol form as well as her Princess form she wears different kinds of outfits which include fluffy pink skirts.

In the manga, her hair is brown in human form.

Forms and Aspects

As a mermaid, Lucia has to transform into a human in order to stay on land. When facing a sea demon, she transforms into her idol form, Pink Pearl Voice, and uses her voice as offensive attack. The Sea Demons and enemies are injured by the frequency of her voice as well as emotions the song contains, which generally have the subject of hope and love.

Lucia’s mermaid form is the same as every other mermaid princess, with a bracelet around one of her upper arm and double pearl bracelet around one of her wrists and her tail. Their all different colors. Lucia's mermaid princess form is first revealed in chapter 6 of the manga and episode 13 of the anime. Her hair is loose and barely in pigtails the tips of which have been loosely curled. There are also glittering pearls and flower petals strewn throughout her hair. She wears lacy elbow length gloves, and her dress has three bows in the center as well as three layers of cloth, all centered in the front. Lucia appeared two more times in this form, in chapter 14 and chapter 19 of the manga with minor differences, such as adding a choker of laces and changing the petal flowers into roses.

Lucia’s mermaid form and her human form contrast the most out of all the mermaid princesses. She has shoulder length dark blonde hair and brown eyes while on land and long lighter blonde hair in pigtails and light blue eyes as a mermaid. She's mostly seen wearing a pink and red sailor style school uniform (short sleeves for summer and long sleeves for winter). in the magna her hair is a darker than it is the anime

When facing the enemies, Lucia transforms into her idol form, Pink Pearl Voice. In her idol form, she sings with the rest of the mermaid princesses to defeat the enemies by singing songs that convey their true emotions. Her first outfit is complete with a pink dress with short skirt, lacy pink gloves, and boots. Lucia, along with Hanon and Rina, gains her second outfit in episode 28. The trio was upgraded by the sea goddess, Aqua Regina. Her second outfit is very noticeably different from her first one. Her dress now is complete with a double layer and a long pink bow on the back. Her gloves and her boots now have a second layer. She also gained accessories such as a jeweled headpiece, a more intricate bracelet, and pink accents alongside the top part of her dress. Lucia and Hanon have a similar with slight changes to the design. It should be noted that their transformations are based off of the general format of their school uniform. As it is true with all the mermaid princesses, Lucia’s second transformation is more powerful than the first one and enables her to defeat the Black Beauty Sisters with her new songs.


Like the rest of the mermaid princesses, Lucia needs her pearl in order to transform into her idol form. Her pearl is also needed in order to summon Aqua Regina. When in her idol form, her voice was transmitted by a microphone like object called the E-pitch, in order to defeat the enemies. Her voice is shown to be very powerful. She is also shown wearing Aqua Regina's outfit in the last volume of the manga. Her hair is loose. She also holds Aqua Regina's staff. Legend of Mermaid was a song that she would sing as child, so this is one of her image songs.

Her character songs are 'Splash Dream, 'Legend of Mermaid and 'Koi wa Nandarou'. She ends attack songs with the phrase 'Love Shower Pitch' in both the anime and manga followed by 'Encore wa ika ga' which can be translated as 'How about an encore'?

List of songs sung by Lucia


Lucia calls out "Pink Pearl Voice" indicating the initiation of the transformation. Her pearl begins to glows and it comes out of her pendant, turning into her microphone. Then Lucia's pink boots and gloves appear. She takes her microphone in her right hand and twirls around and strikes a pose. After Aqua Regina gives Lucia, Hanon, and Rina the upgrade in outfits, Lucia can transform into her second idol form. Her new top appears then her skirt, each with an extra layer. Her boots and gloves appear, also with a new layer. A notable new accessory is her long, dark pink bow tied at her waist and her headpiece.


Find more images here: Lucia Nanami/Gallery.


  • Like all North Pacific mermaids, Lucia was born on a Monday.
  • Unlike other mermaids, North Pacific mermaids do not have matching hair and tails, and rather have blonde or brown hair.
  • Lucia and Caren share the same image song in the Italian dub.
  • While never directly acknowledged on screen, it is likely that Lucia had her 14th birthday around Episode 14 and her fifteenth around Episode 66, as the series largely aired in pseudo real time, with the episode air dates roughly corresponding to the date the episode takes place on.
  • Lucia, along with Hanon, are the only of the 2 characters to appear in all the 91 episodes.
  • Although her name is spelt as Lucia it is pronounced as "Luchia" (Though this caused the English, Portuguese and Thai dub to pronounce her name as LuCia. The French version even goes as far as completely changing it to "Lucie", a common name in said language.)
Mermaid Princesses Lucia NanamiHanon HoshoRina ToinCarenNoelCocoSeiraSara
Supporting Characters Aqua ReginaKaito DomotoHippoNikora NanamiMadame Taki
Tarō MitsukiRihito AmagiMichal AmagiNagisa ShiraiMasahiro Hamasaki
Season 1 Villains GaitoIzuruEriruYuriMariaShesheMimi
Season 2 Villains MikeruShesheMimiLady BatLanhuaAlalaFukuThe Great One
Minor Villains Beyrich's Slit ShellBubble CrabGaleosGiant JellyfishIce Fairy
LionfishMehikariNapoleon FishSardines
Sea CucumberSea SnakeTachi BrothersTropical FishWater Dragons
Minor Characters AuriAyakaBāyaCoral SpiritFujin AmagiJennifer Houston
KashiwagiMakotoMamiMeruMeru's MotherMakiMinkeMomoPipiPurachanRichardRyoSakiyaSomegorōSubaruYukieYuya Ishibashi
  1. The anime episode air dates roughly match their in series date, so we can assume that her 14th Birthday happens around Episode 14, and her 15th Birthday happens around Episode 66. This implies that Lucia would be 14 by the end of the first arc and 15 by the end of the second.
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