Dorami-chan: Arara shounen sanzoku-dan

Sewashi, who wants to learn more about his ancestors, sends Dorami in the past along with the cute little robot Arara. However, the robot cat will discover that both Nobihe (ancestor of Nobita) and his friends Shizukin (ancestor of Shizuka), Takesho (ancestor of Gian) and Sunemaru (ancestor of Suneo) tired of life in the village and poverty (Except in the case of Suneo, who was already living comfortably, decided to live new adventures becoming bandits.) Eventually, with the help of Dorami, they can help the people in their village and get them out of the misery they were in, and then return to stay with their families.