Haruka finds a cat in an abandoned building and names it "Nyan". Little does she know that this cat is actually "Ultra-Nyan" who has come from outer space. Using his mysterious powers, Ultra-Nyan helps Haruka and her friends foil the plans of a couple of no-good catnappers.
| Production | Tsuneyuki Morishima | Producer |
| Writing | Sadayuki Murai | Screenplay |
| Camera | Hideo Okazaki | Director of Photography |
| Directing | Hiroko Tokita | Director |
| Art | Kenichi Tajiri | Art Direction |
| Visual Effects | Eiji Komatsu | Animation |
| Production | Seiji Suzuki | Producer |
