Synopsis

"Finish your homework before you go out," Tamako instructed Nobita. Doraemon assisted Nobita with his latest Echo Mountain gadget, but the boy, distracted by the promise of playtime, used it unwisely on his sleeping mother. Then, eager to test its capabilities, he aimed it at Gian, who had a reputation for breaking promises. Upon their return home, however, Tamako erupted in a scolding, insisting Nobita complete his unfinished work.