Story: Nobita Nobi is an elementary school student who struggles with his studies, is inept at sports, and tackles everything half-heartedly. His lack of success and pervasive bad luck make him a constant disappointment, which has repercussions even for his descendants. To address this, his great-great-grandchild, Sewashi, travels back from the 22nd century to the 20th century. Sewashi introduces Nobita to Doraemon, a blue robotic cat who emerges from a drawer. Doraemon reveals that he has been sent by Sewashi to help Nobita find happiness.

Initially disheartened by Nobita’s lack of motivation and future prospects, Doraemon considers returning to the future. However, Sewashi has activated a program within Doraemon that prevents him from leaving. Now bound to stay, Doraemon uses his futuristic gadgets, stored in his four-dimensional pocket, to assist Nobita. Together, they embark on a journey to transform Nobita’s life for the better. Will Doraemon succeed in bringing joy to Nobita and find a way back to his own time?