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Doraemon: Nobita's Great Battle of the Mermaid King (ドラえもん のび太の人魚大海戦 Doraemon: Nobita no Ningyo Daikaisen) is the thirtieth installment of the Doraemon feature films.

Plot

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After the Underwater Pump Stimulator, complete with Seawater Survival Gas went off, along with Nobita and Doraemon taking off their water goggles off, a mermaid inadvertently landed in Nobita's backyard, her name was Sophia, who turned out to be the Princess of the Aquarians. When Nobita and Doraemon first saw her, they thought that she was cute. After drinking juice, She speaks Aquarian language, a fictional language spoken on the planet, Aqua. Doraemon and Nobita couldn't understand her own language, so they used the Translation Tool to understand her their language. After that, she mistook Doraemon for a puffer fish. And then she introduced herself as Sophia. And so, Nobita and Doraemon, Suneo, Shizuka, Gian went on a mission to find the mysterious weapon called "The Mermaid Sword" ( from Sophia's tiara) in order restore peace to the sea.

Suneo is showing off again, this time about how he’s been going scuba diving and swimming with ocean life. Of course, Nobita is jealous as usual and asks Doraemon for help. Doraemon pulls out an ocean simulator that lets anyone wearing the goggles to actually simulate diving. They leave the machine pumping water for the night and then go around town scattering some fish food, ready to invite some real ocean life to take pictures with and brag about.

After a fun night out, the next morning they find a girl who turns out to be Princess Sofia of the Aquarians. She got lost through one of the portals Doraemon had set up but was amazed at the surface world. After a tour and meeting Nobita’s friends, she explains that her people migrated from Planet Aqua to Earth 5000 years ago – about the time when stories about mermaids first emerged on Earth. Now they live quietly in the deep seas. When she decides to return to the palace, Nobita and his friends join her with some help of Doraemon’s gadgets. On their way back, they are attacked and are mistaken as kidnappers. Shizuka manages to hide but she is abducted by the Aquarian’s enemy, the Kaiges who managed to track them down, determined to get their hands on the legendary sword. After Sofia clears up the misunderstanding, they have an audience with the queen Ordeen who tells them how their fight with the Kaige had made their Planet Aqua uninhabitable. A message arrives from the Kaige demanding they hand over the sword in exchange for Shizuka who was being held hostage. Unable to decipher the clue they had found, they didn’t know the whereabouts of the real sword so they decide to create a decoy. There was little time left before the effects of the underwater gun was going to expire. They rescue her just in time and a fight breaks out. As Sofia prays for help, the sword reveals itself and the Kaige’s leader Buikin obtains the power, making quick work of Sofia’s army.

After luring him out of the water, Sofia and the others manage to trap Buikin using Doraemon’s simulator. In the process, they find out the sword helps clear up polluted water and Sofia is happy they can return home to use it on their home planet. The heroes are welcomed back with cheers in the kingdom but they Nobita and his friends realize they’ve away for too long.

With that, they say farewell and take the time machine back to before they met Sofia, ready to return to their everyday lives and wondering if they will ever meet again.

Characters

Gadgets used

Cast

Character Japanese version
Nobita Megumi Ohara
Doraemon Wasabi Mizuta
Shizuka Yumi Kakazu
Gian Subaru Kimura
Suneo Tomokazu Seki
Dorami Chiaki
Nobita's Mom Kotono Mitsuishi
Nobita's Dad Yasunori Matsumoto
Sophia Rie Tanaka
Haribō Mayumi Iizuka
Dr. Mejina Iemasa Kayumi
Sakkana Michiko Neya
Tragis Katsuhisa Hoki

Music

Theme songs
Opening
Yume wo Kanaete Doraemon
Ending
Kaeru Basho

Names in other languages

Language Name Meaning
Chinese大雄的人魚大海戰
Dàxióng de Rényú Dà Hǎizhàn
Nobita's Great Battle of the Mermaid
Korean도라에몽 : 진구의 인어대해전
Dola-emong: Jinguui in-eodae Haejeon
SpanishDoraemon: La leyenda de las sirenasDoraemon: The Legend of the Mermaids

Trivia

  • A manga version based on the film was released in Japan.
  • The scene where Doraemon and Nobita swim around the hometown using the Underwater Pump Simulator and the Diving Mask Simulator is based off the volume 41 chapter, Our Town is Underwater Late at Night (深夜の町は海の底).

Gallery

Navigation

Doraemon: Nobita's Great Battle of the Mermaid King | Manga
The Merpeople

SophiaHariboQueen UndineDr. Mejina
Sophia's MotherSophia's FatherSophia's GrandfatherManatia
The Demon Fish Tribe
BulkinTragisThe Demon Fish
Settings
Deep OceanKingdom of the MerpeopleBulkin's lairAqua Star
Major Events
Invasion of the Demon Fish

Doraemon: Nobita's DinosaurDoraemon: The Records of Nobita, SpaceblazerDoraemon: Nobita and the Haunts of EvilDoraemon: Nobita's Monstrous Underwater CastleDoraemon: Nobita's Great Adventure into the UnderworldDoraemon: Nobita's Little Star WarsDoraemon: Nobita and the Steel TroopsDoraemon: Nobita and the Knights on DinosaursDoraemon: The Record of Nobita's Parallel Visit to the WestDoraemon: Nobita and the Birth of JapanDoraemon: Nobita and the Animal PlanetDoraemon: Nobita's Dorabian NightsDoraemon: Nobita and the Kingdom of CloudsDoraemon: Nobita and the Tin LabyrinthDoraemon: Nobita's Three Visionary SwordsmenDoraemon: Nobita's Diary on the Creation of the WorldDoraemon: Nobita and the Galaxy Super-expressDoraemon: Nobita and the Spiral CityDoraemon: Nobita's Great Adventure in the South SeasDoraemon: Nobita Drifts in the UniverseDoraemon: Nobita and the Legend of the Sun KingDoraemon: Nobita and the Winged BravesDoraemon: Nobita in the Robot KingdomDoraemon: Nobita and the WindmastersDoraemon: Nobita in the Wan-Nyan Spacetime Odyssey
Doraemon: Nobita's Dinosaur 2006Doraemon: Nobita's New Great Adventure into the Underworld ~The 7 Magic Users~Doraemon: Nobita and the Green Giant LegendDoraemon: The Record of Nobita's SpaceblazerDoraemon: Nobita's Great Battle of the Mermaid KingDoraemon: Nobita and the New Steel Troops ~Winged Angels~Doraemon: Nobita and the Island of Miracles ~Animal Adventure~Doraemon: Nobita's Secret Gadget Museum (Museum)Doraemon: New Nobita's Great Demon ~Peko and the Exploration Party of 5~Stand by Me DoraemonDoraemon: Nobita's Space HeroesDoraemon: Nobita and the Birth of Japan 2016Doraemon: Nobita's Great Adventure in the Antarctic Kachi Kochi

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