第112話: ノビタはドラえもんの一時戻しガジェットでアイテムの起源を勉強する

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Nobita is doing his schoolwork for once in his life. The project calls for him to learn about the origin of items around his house. Doraemon happy that Nobita is doing his work, willingly pulls out a gadget that reverse items to their origin for 15 minutes. (Source: Wikipedia)