Mermaid melody Wiki
Mermaid melody Wiki
Character Bio

As long as I'm with you, I don't care if we get thrown back into the dark depths of the ocean.

–Sheshe to Mimi, Episode 79

Sheshe ( シスター シェシェ Shisutā Sheshe) is an antagonist in the Mermaid Melody series.

Sheshe and Mimi are lovers, Sheshe is the older sister of Mimi, the two of them are the Black Beauty Sisters. There has been a common misconception among fans that Sheshe and Mimi were lovers in the manga and were censored to be sisters in the anime, when in fact, they still referred to themselves as sisters even in the manga.


Sheshe and her younger sister first appeared in Episode 27, they almost succeeded in capturing the mermaid princesses as they were immune to their songs before. The first and only mermaid that they had captured was Caren, until Lucia, Hanon and Rina rescued her by singing their newest song Kizuna.

After Episode 28, Sheshe and her sister continued to work for Gaito,they were not worried about getting replaced or punished as Gaito always trusts them. Until Episode 48, Mimi had insulted Gaito by saying something mean about Sara and he slapped Mimi. Sheshe suggested that they steal Noel and Coco's pearls and act on their own. They also hypnotized the Dark Lovers to help them capture the mermaid princesses. They almost succeeded until Aqua Regina gave the four the new song Kodou .They asked Gaito for help but he was very angry at them so he turned them back into anglerfish.

Fortunately, they were turned back into water demons in Episode 54 by their new boss Mikeru. Mikeru also gave them a new song Yami No Baroque, even more powerful than their former song. Sheshe and her sister were not as carefree and arrogant as before.

In Episode 79, after messing up their latest plan to capture the mermaids.Sheshe scolds Mimi for their failure and her clumsiness. They got into a fight and Mimi ran away after Sheshe said she wish she never had a sister like Mimi. Sheshe pretends that she doesn't care about Mimi when she was questioned about it by Fuku. But in fact,she was very worried about Mimi.

Later when Sheshe and Fuku are watching Mimi fighting the mermaids nearby, she scoffs that Mimi will just give up since she can't do anything without her. Until she saw Mimi unleash another attack on the mermaids and was using up most of her energy, Sheshe felt more concerned and worried about her.

Eventually, Mimi couldn't stand the mermaids' songs anymore and floated away after getting attacked with the mermaid's Love Shower Pitch. Sheshe immediately came to her rescue.She held Mimi and told her that she was her very important sister. She was very angry at the mermaid princesses for hurting Mimi and used the ball of light to create water tornados to attack them. But Mimi soon fainted, Sheshe was very worried and left to heal her. She took Mimi to the bottom of the ocean and used the ball of light to heal Mimi. Knowing this would get her punished by Mikeru, Mimi told Sheshe to not heal her. But Sheshe did not care whether they get punished as long as they are with each other. At the end Mimi hugged Sheshe while crying.

Mimi hugging Sheshe

In Episode 85, when Mimi started to realise that her friends were the mermaid princesses, Sheshe had noticed Mimi spacing out when they were discussing their plans, she felt suspicious but decided to shrug it off. Until Mimi started crying when she saw the mermaid princesses turn into their human forms, Sheshe was confused about why Mimi was upset. Mimi quickly left out of guilt and sadness, leaving Sheshe confused and startled.

Sheshe later found Mimi sitting by herself and asking her what happened. Mimi just told her that she can't fight them anymore. Unfortunately, Fuku interrupted them before Mimi could explain to her sister what happened. Fuku taunted and explained to them that he had never trusted them from the start,and they were only intended as sacrifices all along.

Before they were about to be confronted by Mikeru, Mimi begged him to only "punish" her and spare Sheshe, since she is the one at fault, Sheshe felt sad and guilty as well. Sheshe comforted Mimi and told her that even though they aren't going to win, they will show him the power of the Black Beauty Sisters. The two of them sang Kuro no Kyōsōkyoku at Mikeru for the last time, he couldn't handle his song anymore and unleashed his wings at Sheshe and Mimi.

Mimi managed to confessed about how she feels the happiest when she is singing with Sheshe. Sheshe said that she had felt the same way also. They shared one last hug as their life energy was getting absorbed into Mikeru.

Sheshe and Mimi's death

Mimi told Sheshe that if they were ever reborn, she wants to introduce some friends to her, Sheshe joked about when Mimi had made friends like that. Mimi added that if she had met her friends, she would be shocked. Sheshe simply replied that she would want to meet them too. Those were their last words after Mikeru absorbed them.

Sheshe and Mimi made one last appearence in Episode 91 and they sang Legend Of Merrmaid with the rest of the entire cast. But it is still unknown whether they were revived by Aqua Regina after Mikeru returned to The Ancients, or were still dead.


As Sheshe is a villian she acts in evil ways in order to capture the mermaids. She will get angry if someone hurts her and Mimi. She has a "dominant" personality,as she often likes to tease and initiates intimate contact with her sister.

Sheshe teasing Mimi

She is more arrogant and snobbish compared to her sister. However, she has a nice and caring personality towards Mimi and they barely ever fight (except in Episode 79), she cares about her sister a lot and will do anything to protect her.


Sheshe's main villain outfit is her red leotard, she wears two arm warmers with X‘s on them. Her outfit comes with gray tights and dark gray knee-high front-facing slanted-cuff boots. Her hair is usually tied in a high ponytail that reaches to her waist. Her tail is a long black wire and the end of it is her microphone.

In the manga, her outfit is almost the same, except she wears fishnet tights and the end of her tail is not a microphone. Sheshe wears a red dress and has normal ears in her human form (shown in Episode 68)



Throughout the series, Sheshe and Mimi are shown to have an extremely close incestuous relationship. Sheshe has a habit of suddenly pulling Mimi's chin close to her face as if they were about to kiss, Mimi would blush in return to Sheshe's actions. They're constantly seen holding onto each other tightly even when walking or singing. In Episode 48, after Mimi was slapped by Gaito, Sheshe immediately went to comfort her, suggesting that they should act on their own and leave him, all the while she was caressing Mimi's slapped cheek tenderly.

In Season 2, Sheshe still continues to act amorously with Mimi, always trying to keep her happy by coming up with battle plans and reassuring her that they'll be alright.

Mermaid Princesses

When Sheshe and Mimi first became water demons, they were ordered to capture the mermaid princesses by Gaito, the two of them saw the mermaids as powerless and pathetic, until they were defeated in Episode 28, they disliked the mermaids for causing them pain. As the series progressed, Sheshe and Mimi's detest for them gradually increased.


Sheshe is a mercenary of Gaito, not in love with Gaito like the Dark Lovers, but only willing to cooperate with Gaito for personal gain (more specifically, a piece of the 7 oceans). The reason the Black Beauty Sisters must align with Gaito is because they, like the Dark Lovers, are also transformed by Gaito's spell. Sheshe's true form is that of a demon anglerfish.



Besides using their songs as an attack towards the mermaid princesses, Sheshe and Mimi both have a lot of powers, Sheshe is shown to have more powers than Mimi.

List of Sheshe's powers:


Sheshe's gallery: Sheshe/Gallery

Voice Actress

Sheshe's voice actress is Miki Tsuchiya(土屋実紀)

In 2007, Miki Tsuchiya along with some other voice actresses from Mermaid Melody (Noriko Shitaya/下屋則子, Mimi's voice actress, Megumi Kojima/小島めぐみ, Lanhua's voice actress and Sayori Ishizuka/石塚さより, Izuru's voice actress) formed a band called "Cri☆siS".


  • Unlike her sister, she never sang any of her image song in solo.
  • Sheshe has one horn on her head instead of having two horns like Mimi.
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 MotherMakiMinkeMomoPipiKura-chanRichardRyoSakiyaSomegorōSubaruYukieYuya Ishibashi