Nobita wants to read a new book together with Shizuka. Shizuka has other plans which was to go to a muesum with Dekisugi. Although Dekisugi invites Nobita to come along, he sulkily denies (idk he has an attitude). Then, Gian snatches his new book away from Nobita, who rushes home crying (ok I'm kind of done with him). Nobita comes home to see a doriyaki on a plate. Without asking anybody, he tries to eat it but the doriyaki kept bouncing away from him, and later into Doraemon's mouth. Doraemon then said that he sprayed the "Monopoly Gas （私有物气体) " on it. The gas works in a way that only the person that sprayed the gas on the thing will only interact with that the former. Of course Nobita being the entitled kid, sprayed the gas on Shizuka. Shizuka immediately ditches Dekisugi, and rushes to Nobita's house. Nobita then tried to get his comic book back from Gian. At Nobita's house, Doraemon tried to talk and play a board game with Shizuka, but she declines and said that she only wants to play with Nobita. Outside, Nobita tries to help a girl to spray the gadget on her lost monkey, but he accidentally sprays it on sensei. Thus, sensei pulls Nobita back to his house to practice math problems for the entire night.
