Seven years ago, Lopplc and Morina were playing at the park. Then suddenly they felt an earthquake on the Koya Koya Planet. The quake was so massive, that the planet had been destroyed completely. Everyone on the planet had to escape using a big spaceship as they saw the planet's destruction. A sudden bolt of lightning damaged the big spaceship, causing a power failure. The Professor (who was Morina's father) wanted to fix the spaceship, but another lightning strike hit the red hose and the Professor was killed. During the present day, Nobita's friends are calling him to pick up a baseball from a group of tough baseball players. Jaian pushes him to the field and he faces the players. He asks for the ball back, then they chase him and violently drop him into a construction hole.
Two alternate universe creatures, Lopplc and Chammy, are escaping from an attack from an enemy ship. Then suddenly, Chamii presses a red button so that they can escape fast. While Nobita is sleeping, he suddenly feels the floor is trembling, like there would be an earthquake in his room. A little rabbit from an alternate universe named Chammy opens the door between the dimensions using a hammer and gets inside Nobita's room through the floor. Nobita wakes up and Doraemon hears somebody steal food from the fridge in the kitchen. It is Chammy, who gets caught by Doraemon and Nobita. She shows them the passageway through Nobita's floor into the spaceship. After they enter the spaceship, they see Koya Koya Planet. They meet a boy named Lopplc (now 12 years old).
Genre:Anime Action Adventure