Doraemon

Seven years ago, Lopplc and Morina were playing at a park. Suddenly they felt an earthquake on the Koya Koya Planet. The quake was so massive that the planet was destroyed. Everyone had to escape using a giant ship. A sudden bolt of lightning damaged the ship, causing a power failure. The Professor (who was Morina's father) wanted to fix the spaceship, but another lightning strike took him to another dimension him. Meanwhile Nobita's friends get him to retrieve a ball from a group of tough baseball players. But they chase him and drop him down a manhole. Gian gets angry upon him and he runs toward Shizuka's house to save himself. But finally caught by him and beaten off well. Two alternate universe creatures, Lopplc and Chammy, are escaping from an enemy ship. While Nobita is sleeping, he suddenly feels the floor is trembling, like an earthquake. A little rabbit from the alternate universe named Chammy opens the door between the dimensions using a hammer. Nobita wakes up and Doraemon hears somebody steal food from the fridge. Chammy is 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, and meet Lopplc (12 years old). Soon the become good friends. Lopplc takes Nobita to his friend Morina who continuously ignores them. On the next visit Nobita brings his friends with him and they play in a meadow. They got attacked by mining agents who wanted to get crystals from the planet's crust. All of them run away to their own dimension. Next day Nobita is scolded by her mother for hiding his test paper. Nobita and Doraemon again decide to meet Lopplc but suddenly Dorami comes and takes Doraemon for his check up. Nobita decides to go alone to Koya Koya Planet. Abruptly he got sucked by another dimension and he reaches to another planet. He got chased by a dinosaur, only to be saved by Doraemon' gadget. On the next visit, the mining agents warn them to move from there b