<p>Roppu was a toy abandoned by the child of aliens. He was rediscovered by Roppei, the son of a fisherman. Roppu can fly when the button on his chest on is pressed. Roppu can also create anything, even things thought to be impossible. When the star on his head is pressed, Roppu falls still. Roppu and Roppei have all sorts of adventures, with questionable figures often trying to get their hands on Roppu for their own desires.