In real life, Nobita (voiced by Ohara Pear) is often scolded by his teacher and mother, and is often bullied by his husband (Gan Fu and Tai dubbing) and Fatty Tiger (Libi and also dubbing). He dreams of becoming a daring and powerful superhero all the time. In order to help the depressed Nobita realize his heroic dream, Doraemon (dubbed by Dashan Yoshimeng) took out the dream machine. After some selection, Nobita chose the plot of "Dream three Swordsmen". Under the guidance of the elf Siluko (voiced by Daozi Yamamoto), Nobita came to the dream kingdom of Amiruman. Here, he is known as the Silver Swordsman Nobinia, who is destined to overthrow the rule of the demon Emperor Otrom over the Amiruman kingdom, and he also meets the husband and fat tiger-like swordsmen such as Snemis and Jatos. They join hands to attack the legions of demons, and in the process, the boundaries between reality and dreams are gradually confused.