Grandeek

The Straw Hats visits an island, known as Mecha Island, where a fisherman sings an old folk song about a Golden Crown. Searching for that mysterious treasure, they find a hidden entrance into the island. The island's leader, Ratchet, impressed with the find and in search of the Golden Crown himself, invites the crew to join him in his search and the crew along with Ratchet and his henchmen enter the cave. As it turns out, the islands true form, is that of a giant turtle. Ratchet, who had known this all along, uses his mechanical castle to take control of the turtle, in order to use it, to take over the world. Now the Straw Hats have to stop not only Ratchet, but also the helpless turtle, from crashing into a nearby island.

The villainous Nekron and his mother, Queen Juliana, plot against the human race from their frigid fortress. Creating mass destruction with huge glaciers, mother and son incur the wrath of Larn, a warrior whose entire village was destroyed by ice. When Nekron's underlings kidnap the beautiful Princess Teegra, Larn sets out to rescue her, assisted by the fierce and enigmatic Darkwolf.

Nobita travels to the future to show his beloved grandma his bride, but adult Nobita has fled his own wedding.

Upon hearing about the story of Treasure Island, Nobita dreams of discovering and exploring his own treasure island, despite the fact all of the Earth has been mapped already.

It is 300 years into the future. Earth's environment had been devastated by mankind's own foolish plans and humankind is beleaguered by the sentient forests which they have awoken. The world balance is tipped when a young boy named Agito stumbles across a machine that glowed in a strange blue hue inside a forbidden sanctuary.

Sewashi and Doraemon find themselves way back in time and meet Nobita. It is up to Doraemon to take care of Nobita or else he will not return to the present.

A brave young animal explorer teams up with two trusty friends to find a powerful artifact before his greedy uncle can get his paws on it.

Iroha's life gets knocked off its orbit when Kaguya, a carefree runaway from the Moon, moves in and convinces her to perform in a virtual world together.

A girl named Olga is pursued by both the World Government and a man named Mad Treasure, as she is the only one who knows the location of the Pure Gold, a substance that can buy the entire world. Olga ends up sailing with the Straw Hat Pirates, and they journey to find the Pure Gold on the lost island of Alchemi, which is located inside the stomach of a large angler fish named Bonbori.

Shizuka ends up in the fantasy world of the 'Arabian Nights' story. However, Doraemon, Nobita, Suneo, and Jyaian must find her from the imaginary Middle East and bring her back to the real life.

Doraemon and Nobita discover a mysterious golden ring far beneath the ice in Antarctica, leading them to uncover an ancient, ruined city.

The Noharas get caught between two rival clans when Himawari swallows a pretty bead that turns out to be a mysterious ball with hidden powers.