Episode 1
Morning of Separation
2004-04-03 • 25 min
Lucia bids Kaito farewell as he leaves for Hawaii, but peace is short-lived as a mysterious new villain emerges.
TV season
2004-04-03
Episode 1
2004-04-03 • 25 min
Lucia bids Kaito farewell as he leaves for Hawaii, but peace is short-lived as a mysterious new villain emerges.
Episode 2
2004-04-10 • 25 min
Shocking news hits as Kaito disappears in Hawaii. Lucia refuses to give up hope, embarking on a dangerous search while new enemies strike!
Episode 3
2004-04-17 • 25 min
Hanon faces a heartbreaking farewell as Taro leaves for Germany to pursue his music, but a new enemy attack disrupts his departure.
Episode 4
2004-04-24 • 25 min
Sparks fly when Rina meets Masahiro Hamasaki, but dark forces disrupt their meeting. Can the mermaid princesses stop the new threat?
Episode 5
2004-05-01 • 25 min
The girls enjoy a beautiful concert led by Rihito, but when the Black Beauty Sisters attack, the mermaid princesses must protect the music!
Episode 6
2004-05-08 • 25 min
Kaito returns from Hawaii, but joy turns to horror when she learns he has lost all his memories of her!
Episode 7
2004-05-15 • 25 min
Tragedy strikes as Michel absorbs Sierra's newborn soul! Holding only her orange pearl, Lucia vows to recover Sierra's lost heart pieces.
Episode 8
2004-05-22 • 25 min
Heartbroken over Kaito’s lost memories, Lucia tries to bury her lingering feelings and move on just as a new enemy strikes!
Episode 9
2004-05-29 • 25 min
Nagisa keeps trying to get closer to Hanon, leading to a chaotic "love lesson" while Hanon still misses Tarou.
Episode 10
2004-06-05 • 25 min
As Masahiro gets closer to Rina, she struggles with her past and fear of falling in love until enemy forces crash in!
Episode 11
2004-06-12 • 25 min
Rihito worries about his fragile sister Michal as she grows closer to Kaito. Lucia struggles with her own feelings while watching them.
Episode 12
2004-06-19 • 25 min
Coco leads Lucia and her friends to the Indian Ocean to search for Sarah's cursed object, hoping it holds the key to saving Sierra's spirit!
Episode 13
2004-06-26 • 25 min
Rina uncovers a surprising secret about Masahiro's family background, bringing them closer together as danger draws near!
Episode 14
2004-07-03 • 25 min
Kaito follows Rina in search of clues to his lost memories, uncovering painful truths while dark forces shadow their path!
Episode 15
2004-07-10 • 25 min
When a sacred glacier in the South Pole melts, catastrophic waves threaten the oceans. The princesses gather their song of hope!
Episode 16
2004-07-17 • 25 min
Lucia, Hanon, and Rina invite Karen, Coco, and Noel to the beach house to save Maki's store from closing down! Can the mermaids pull it off?
Episode 17
2004-07-24 • 25 min
Coco, Noel, and Karen play matchmaker to help open Hanon's guarded heart to Nagisa, who is head over heels for her!
Episode 18
2004-07-31 • 25 min
A magical world grants two wishes, giving Hippo a reunion with Yuri and Sierra a day of fun with Lucia!
Episode 19
2004-08-07 • 25 min
The mermaids head into battle to free Somegoro's people from the Black Beauty Sisters' dark magic.
Episode 20
2004-08-14 • 25 min
Determined to uncover why Masahiro loves Rina, Karen goes on a test date with him while Coco and Noel spy from the sidelines!
Episode 21
2004-08-21 • 25 min
Lucia's cleaning errand turns into an embarrassing surprise when Kaito walks in! Meanwhile, Amaya makes her dark debut.
Episode 22
2004-08-28 • 25 min
Chaos ensues at Pearl Piari when a mystery thief steals a precious box Rihito gave Lucia! Can she track it down?
Episode 23
2004-09-04 • 25 min
Michel's minions launch a massive attack on Rihito's concert, revealing Rihito's power! Aqua Regina grants the mermaids a new song.
Episode 24
2004-09-11 • 25 min
From karaoke chaos to a ride with Rihito, Lucia realizes her heart still belongs only to Kaito.
Episode 25
2004-09-18 • 25 min
Tricked by a fake fortune teller, Lucia tosses her prized ring into the sea and falls into Lady Bat's trap!
Episode 26
2004-09-25 • 25 min
New villain Amaya debuts as a pop star idol! Can the mermaid princesses defeat her at her own concert?
Episode 27
2004-10-02 • 25 min
After a fight with Sora, Miya runs away and unexpectedly stays with Lucia! Reenergized, she fights the mermaids alone until Sora risks it all to save her.
Episode 28
2004-10-09 • 25 min
During a class trip to a greenhouse, Kaito sits by Lucia and recalls her birthday! But as Michal grows jealous, Sierra's spirit warns of danger.
Episode 29
2004-10-16 • 25 min
Michel's servants team up to kidnap Hippo and use him as bait to trap the mermaid princesses! Can Hippo be saved in time?
Episode 30
2004-10-23 • 25 min
Struggling to reveal her secret mermaid identity, Rina hesitates to confess to Masahiro until he promises never to let her go, and they share a kiss!
Episode 31
2004-10-30 • 25 min
Hanon struggles with her feelings after Tarou writes to her, but a dangerous night with Nagisa leads to a romantic turning point!
Episode 32
2004-11-06 • 25 min
Kaito finally breaks through his amnesia and remembers his love for Lucia! Can he protect her from Michel’s dark magic?
Episode 33
2004-11-13 • 25 min
While Lucia celebrates her emotional reunion with Kaito, Miya realizes her human friends are actually the mermaids!
Episode 34
2004-11-20 • 25 min
As Kaito leaves her side, Michal gives in to despair and listens to an eerie call tempting her away.
Episode 35
2004-11-27 • 25 min
Desperate to end her pain, Michal merges with Michel! Aqua Regina grants the mermaids a new song as dark truths surface.
Episode 36
2004-12-04 • 25 min
Trapped in Michel's dimension, the mermaids are saved by Sierra's song as Michel turns on his own servants!
Episode 37
2004-12-11 • 25 min
As the final battle looms, Sierra asks Lucia to destroy Michel's statue body, uncovering shocking Pantharassa secrets.
Episode 38
2004-12-18 • 25 min
On Christmas Eve, Sierra is finally reborn! Uniting their voices with Aqua Regina, the mermaids save Michel and Michal.
Episode 39
2004-12-25 • 25 min
Peace returns to the ocean! All seven Mermaid Princesses host a massive reunion concert, and Lucia and Kaito share forever.