Fourth-grader Nobita Nobi's life is turn upside down when his great-great-grandson Sewashi from the 22nd century sends him a robotic cat named Doraemon to help him change his future. Otherwise, he will marry Gian's sister Jaiko, have his private company burned down and be left with great debt. Despite initial hesitance, Doraemon introduces gadgets to help Nobita who uses them to woo his crush Shizuka Minamoto. However, he fails and decides to let go of Shizuka, who eventually realizes Nobita's true intentions and starts to worry about him. After a series of events, including Nobita disguising himself as his older self to help Shizuka during a blizzard and Gian forfeiting their fight, Doraemon finally returns home. But, to Nobita's surprise, Doraemon returns due to the effects of the opposite solution that Nobita drunk, making it a truth that Doraemon will never return.

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Some movies that have similar genres and were produced around the same time as Stand by Me Doraemon include Digimon Adventure tri.: Future, Pokémon the Movie: Kyurem vs. the Sword of Justice, Winx Club: Magical Adventure, Fantastica: A Boonie Bears Adventure, Pokémon the Movie: Kyurem vs. The Sword of Justic e, Pokémon: Lucario and the Mystery of Mew.

Stand by Me Doraemon was released in theaters on December 31, 2014.

Stand by Me Doraemon was released for streaming on December 24, 2021.