88 constellations that exist in the universe have fallen into the hands of the evil Space Shogunate Jark Matter. However, the insurrection army Rebellion and three Kyurangers chosen by the Kyutama are opposing them to protect the people. By an accident, an adventurer traveling through space, Lucky witnesses Chameleon Green, Oushi Black, and Kajiki Yellow fighting on the planet Crotus. Lucky decides to become the 4th Kyuranger and they set out to planet Jagjag to search for the Kyutama.