Nobita Spends 3000 Days on a Deserted Island

Nobita gets home late playing and gets scolded by his parents, so he decides to run away from home! He knocks out Doraemon with a toy mouse, then he takes some random gadgets from his fourth-dimensional pocket and sneaks out of the house. A policeman calls out to Nobita, so he takes his Takecopter to the sea. He falls asleep right there on the ocean... The next morning, Nobita discovers a small island and decides to live there, where no one lives. He immediately tries to use his gadgets to get something edible, but the tools he brought with him are all useless. He tries to dig a hole using his mole gloves to get some water, but what comes out from underground is seawater, which is not drinkable... "If I stay here I'll die. I better hurry up and get home!" Nobita thought, giving up on running away from home, but then an accident occurred in which the Takecopter flew off on its own! With no way to get home, Nobita...!?