In this installment, we find the beloved characters from Doraemon all grown up, with families of their own in the distant future. However, an unexpected visitor arrives in the form of Minidora, a miniature version of Doraemon, who is accidentally delivered to Nobita's future home. His sons, along with Jyaiyan and Suneo, enjoy playing with Minidora and the fascinating gadgets that he pulls out of his pocket. However, things take a turn when they find themselves on the run from Dorami, who has arrived to reclaim Minidora.