Sea Princesses (anime)

Sea Princesses (海の王女, Ojo no Umi) is an anime television series produced by Toei Animation and Related Money, Inc. It is based on the book series and 2007 cartoon of the same name.

Plot
The series takes place in a hidden kingdom under the sea called Suichu (Salacia in English), which is full of princes and princesses from different animal species. Some of them are interested in the land above the surface, and want to see what it's like, but the kings and queens of the sea are unsure about their daughters and sons contacting with the surface people who are completely unaware of the existence of Salacia, so the princes and princesses who travel to the human world (Dryland/Kansochi as the Salacians call it) have to disguise themselves as civilans of the human world. Three princesses, the show's protagonists, Polvina, the Octopus Kingdom princess; Tubarina, the Shark Kingdom princess and Ester, the Starfish Kingdom princess, are good friends who live together and unravel the mysteries of Salacia.

Characters

 * Polvina/Tako Ojo -  The Princess of the Octopuses. Polvina is a quiet and peaceful girl, timid as octopuses. Her best friends are Esther and Tubarina, who always have great adventures. Her civilian name is Poppy Valance/Aiko Nissho. She is voiced by Asumi Nakata in Japanese and Cindy Robinson in English.
 * Ester/Hitode Ojo -  The Princess of the Starfish, and best friend of Polvina. She usually attends the Palace of the Octopus from time to time, especially after school and on weekends. Esther is a very curious girl, loves to read and watch documentaries on television. She dreams to know the Mainland and also the Star-heaven. Her civilian name is Esther Stanford/Miho Hoshizora. She is voiced by Hitomi Terakado in Japanese and Stephanie Sheh in English.
 * Tubarina/Same Ojo -  The Princess of the Sharks, and daughter of one of the most powerful men in Salacia, King Shark. Tubarina is very ingenious, and disagrees with the common stereotype that sharks are evil. Her civilian name is Tina Shaw/Rina Yamamoto. She is voiced by Mayumi Asano in Japanese and Colleen Villard in English.
 * Marcelo/Shumokuzame Oji -  The Prince of Hammerhead Sharks, and cousin to Tubarina. He moved to the Shark Castle while her parents, the King and Queen Hammerhead, make an important trip. Marcelo likes to tease girls and is always the first in sports competitions. Occasionally, he fights with Tubarina, but deep down they are like siblings. His civilian name is Marshall Harris/Hideaki Minami.
 * Bea/Shin'en Ojo -  The princess of the Abyssal Kingdom, responsible for maintaining order in Beyondness sea and take care of the throne while her parents are travel throughout the kingdom. She carries a scepter of light and unlike the other princesses only study the night school of the sea. She is very fond of Polvina, Esther and Tubarina. Her civilian name is Bea Abbott/Kumiko Abe.
 * Hugo/Kame Oji -  The Prince of Turtles, heir to the throne with his twin sister, Tata. Like Tata, Hugo loves sports, especially the radicals. He is the best friend of Marcelo's cousin Tubarina, which always leads to their confusion. His civilian name is Hugo Turner/Rokuro Nakahara.

Soundtrack
The music for the anime is produced by famous singer and illustrator Ado Mizumori, karaoke singer SeSe-chan, Japanese girl group the E-girls, Korean hip-hop boy band BTS and jazz pianist Yuji Ohno.

Theme Song
The theme song in the Japanese version is Odoru PonPocoPon! by Japanese girl group E-Girls.