When Nobita feels like diving in his hometown, ドラえもん uses Underwater ポンプ Simulator (架空水面シミュレーター・ポンプ?) to ポンプ all the water to fill up water. That night, ドラえもん and Nobita use a Diving Mask Simulator to dive underwater. Later on, lots of fish, and a 鮫, サメ attack ドラえもん and his friends. So, ドラえもん puts a stop on the Underwater ポンプ Simulator, but there is a girl named Sophia, lay down on the bushes in his town.
