is a 2020 Japanese 3D computer-animated science fiction comedy film based on the Doraemon manga series and a sequel to the previous movie, the 2014 film Stand by Me Doraemon. Directed by Ryūichi Yagi and Takashi Yamazaki, it is primarily inspired by Doraemon's 2000 short film Doraemon: A Grandmother's Recollections and Doraemon's 2002 short film The Day When I Was Born.

Plot

Nobita - following his previous movie adventure - has managed to change his future for the better, making Shizuka marry him. Taken by despair, however, he decides to return to the past to re-meet his beloved grandmother, who died when he was still in kindergarten and whom he was really fond of. The grandmother is happy that Nobita came back in time to be with her, and confides in him a great desire: to meet his future bride. Meanwhile, the Nobita of the future, who is about to marry Shizuka and crown his "dream of happiness", is seized by a panic attack and flees into the past to see Doraemon again, fearing that he is not the right person for Shizuka.