Doraemon: Nobita and the Iron Man Corps

Nobita, who used the arbitrary door to reach the North Pole, accidentally discovered the parts of the robot, but because the parts were too big, he and Doraemon took the parts to the mirror world, an uninhabited world, and assembled them. After the assembly was completed, Doraemon named him "Santa Samurai". While happily controlling Santa Claus, I accidentally discovered that he was actually equipped with devastating missiles... Nobita accidentally met Li Lulu, who claimed to be the owner of the robot, in the real world, and borrowed props that could enter the mirror world. But later, Nobita and Doraemon discovered that the Mirror World had established a base to attack the Earth! And the commander is Li Lulu. It turns out that she is a robot sent by the Mechanical Utopia to guide the Iron Man Corps to the earth. In order to save the earth from the crisis, the heroes decided to fight against the Iron Man Corps. Lilulu was injured and was rescued by Shizuka, and discussed with Lilulu that conquering the earth was a wrong move. The Iron Man Corps couldn't wait for Li Lulu's contact and had already arrived on Earth in large numbers, so Nobita and the others began to fight the Iron Man Corps in the mirror world. Li Lulu was also moved by Shizuka and seriously thought about the inappropriateness of their actions, so she and Shizuka went to more than 30,000 years ago to find the human doctor who created the ancestors of the Machine Utopia at that time, in an attempt to transform the ancestors of the Machine Utopia so that their descendant robots would not want to conquer the earth.