Daigo Kiryu and Utsusemimaru set out on a journey in pursuit of Uchu King Dagded who invaded Earth. However, during the battle with Dagded, Utsusemimaru is sent to Earth in another time. They arrived on Earth, which has been invaded by the Deboth Army, unable to save the universe from Dagded. In order to stop the ruined future, they head back to the original timeline, but due to the changes in the timeline, Uchu King Gira reigns over Chikyuu!

The OhgerCrown, the proof of kingship owned by Gira Husty, has been stolen by the Tylerian Donking, a member of the Alienizer gang, and his servant Ihab. Gira and Prince join a battle fight to retrieve the OhgerCrown, the prize for winning the battle fight. Prince wins steadily, but when he meets a boy who is determined not to lose in order to save his sister, he senses something is wrong.