Nobita changes beyond recognition when he comes back to Tokyo after two years staying away. He's now the opposite of what he used to be.

Summary: Another hot summer day from Nobita's family. Nobita's parents wants to go somewhere that is cooler than the snowy mountain. Nobita has an idea and calls Doraemon and wants to revisit the Parallel World again like last time. However, things go crazy after Nobita's parents comes along with them, as they head towards the Parallel World for the first time. Will things turns out really well? Or things might get out of hand?