The Push Door

Nobita forgets his math textbook at home when he goes to school in the morning. Nobita is scolded by the teacher for being late and is laughed at by his classmates. In order to solve the problem of Nobita always being late, Doraemon takes out the "Button Door" and lets Nobita go directly to the classroom. Nobita uses the gadget indiscriminately and goes to Shizuka's house to copy homework and Suneo's house. Because it is the "Anywhere Door", it opens from the wall of her house. Nobita disappears through the back door, and Shizuka is confused. Nobita then goes to the cinema, but there are too many people in the cinema, so Nobita plans to come back when there are fewer people. Later, Nobita goes to Gian's house to attack him. But after several sneak attacks, Gian is on guard, catches Nobita, and beats him up in Nobita's room. But when Gian is about to go back to his room, he presses the button that has "Classroom" written on it before, and continues to beat up Nobita. The teacher finds out and asks them if they have taken back the things they leave in the classroom. They say they have, so he tells them to go home immediately. After that, Gian continues to beat up Nobita, he also presses the button that has "Cinema" written on it before. At this time, the movie has just ended, and all the people who watch the movie rushes into Nobita's room.