Nobita uses Doraemon's Dictator Switch gadget to get rid of Gian and Suneo, which causes everyone to not remember them. While suffering from a nightmare, he accidentally causes everyone to disappear with the gadget, including Doraemon. While Nobita enjoys his time alone at first, he starts to miss everyone and weeps for them. Doraemon then arrives and reveals that he gave the gadget to teach him a lesson about the importance of people.
