* The Dark Lovers (ダーク・ラバーズ, The
Dark Lovers?) - Gakuto's four female followers who serve him in exchange for his love for
them. There are composed of the following:
Izuru (イズール, Izūru?) Voiced by: Sayori
Ishizuka - The most mature of the four, she has the power to control waves and marine
beasts and has the ability to create dragons from water. She is also the most obsessed
with winning the heart of Gakuto.
Eriru (エリル, Eriru?) Voiced by: Yuki Matsuoka - The one
with the multiple personality disorder. At one phase, she is cute, and acting as if she
were antsy (spinning around and never saying any normal speech). In another phase she can
speak correctly and is more observant of her surroundings. In her third phase, when
threatened (or when she spins around), she becomes scary, her eyes glow red, and she
changes her voice accordingly.
Maria (マリア, Maria?) Voiced by: Sanae Kobayashi - The one
closest to Gakuto in terms of love. She is also very cruel at times, and sometimes seems
to see Gakuto more as a boy-toy than a love prospect. She has the power to make and/or
manipulate ice and snow.
Yūri (ユーリ, Yūri?) Voiced by: Chieko Honda - the
youngest-looking of the four. She has the ability to control people and objects,
especially with the use of her music and, if any, a nearby piano. Although Yūri is
loyal to Gakuto, his continued treatment of her as a child leads her to a star-crossed
relationship with Hippo, i.e. his human form.
* Black Beauty Sisters
Black Beauty Sisters?) - composed of the red-wearing older sister Sheshe
(シスターシェシェ, Shisutā Sheshe?,
Voiced by: Miki Tsuchiya) and the blue-wearing younger sister Mimi
(シスターミミ, Shisutā Mimi?, Voiced by: Noriko
Shitaya). Gakuto hires them after the Dark Lovers' failed attempts to capture the Mermaid
Princesses. These two have the ability to sing tunes more powerful than the songs the
Mermaid Princesses themselves sing, although in the anime and the second arc of the manga,
the Princesses manage to get strong enough to overpower them. Their group name is usually
shortened by fans to BBS.
Many fans think that the name "Black Beauty Sisters" is just a stage name, as
Mimi and Sheshe seem to be in love, and sister can mean other things that would apply to
the two, such as sharing the same origin.
Michel (ミケル, Mikeru) - the angel who launched a personal vendetta
against the Mermaid Princesses after learning their relations with the human world.
Although he is strong enough to resist any song the Mermaid Princesses would dish out
against him until the finale, he is cursed with a weak body. He steals both Kaito's
memories and Seira's heart in order to keep himself alive.
Fuku (フクちゃん, Fuku-chan) - a super deformed angel
with the head of a boy and the body of a bird. He's Michel's "right hand man," as well as
his messenger to his servants, but at times orders around even Michel. He turns out to
have a larger role later in the story.
Lady Bat (レディバット, Rēdī-batto) -
Calls himself "The wings of love and pleasure." Michel's vampire-like servant. His song
hypnotizes the listeners into his spell so he could "bite" the person while they are
asleep. There is certain controversy about his real gender, especially among fans in the
West; in the manga, Lady Bat is actually a man wearing women's clothes. He is also strong
enough to bring the Idol-formed Princesses back into Mermaid-form.
Lanhua (蘭花; pronunciation not to be confused with that of Galaxy Angel's
Ranpha Franboise) - Calls herself "The wings of desire and contentment." Michel's
butterfly-like servant. She can divide into a dozen smaller versions of herself (which
really do not look harmful or dangerous; in fact, very cute) to play a tune that makes the
listeners dance until they die. She is called Ranfa and Lang Fa in some merchandise, but
the translators for the manga followed the Mandarin Chinese pronunciation of her name and
called her Lanhua.
Alala (あらら, Arara) - Calls herself "The wings of dreams and
decadence." Michel's fairy-like servant. She sings two songs in the anime; a peppy song
that shoots stars at the Princesses and a sugary sweet song that makes men cheer for her.
In the manga, she can make people (or at least a Mermaid Princess) dream about anything
she wishes, including nightmares. Her name seems to come from the Spanish words La ala,
when switched would be "Ala la", together making Alala. La ala means the wing.