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.
Nobuyo Oyama | Doraemon (voice) |
Kazuya Tatekabe | Takeshi Gouda (voice) |
Kaneta Kimotsuki | Suneo Honekawa (voice) |
Michiko Nomura | Shizuka Minamoto (voice) |
Noriko Ohara | Nobita Nobi (voice) |
Masako Sugaya | Roppuru (voice) |
Emiko Tsukada | Roppuru's Mother (voice) |