One day Nobita Nobi found a old stuffed bear which his grandmother gave it to him. Nobita decided to go back in time to meet his grandmother. Grandma accepts Nobita's belief that he is a young child who has suddenly arrived. Nobita' s grandmother said "I want to see your bride once." And from this one sentence of grandma Doraemon and Nobita's big blasphemy begins. Nobita and Doraemon were trying to show their grandmother a marriage ceremony, but Adult Nobita escaped on the day of his marriage ceremony. Adult Gian and Suneo looking for Nobita. Shizuka who keeps waiting with confidence. Nobita and Doraemon take the time to fulfill the wishes of grandma, to meet the wishes of her family, friends and Shizuka Minamoto, who she likes very much.