Doraemon: The New Record of Nobita's Spaceblazer

While Nobita is asleep, he suddenly feels his room shaking as if an earthquake is happening. A small rabbit named Chamii, from another universe, uses a hammer to open a doorway between dimensions and crawls into Nobita’s room through the floor. Nobita wakes up, and Doraemon hears someone rummaging through the fridge in the kitchen. It’s Chamii, who gets caught by Doraemon and Nobita. She shows them the hidden passage under Nobita’s floor, leading to a spaceship. Once inside, they discover the Koya Koya Planet and meet a boy named Roppuru.