Defend Joyland against the strongest Demon King in history! The villainous Arrogant Demon King, who covets Joyland, full of dreams and hope, plans to steal the Lightning Man's Lightning Power to destroy Joyland. The Arrogant Demon King uses his henchmen, Na Jaalnan and De Jaalnan, to hypnotize Hannah, the mischievous protagonist of the Joyland theater, and makes her fall into a black hole by exploiting her dream of flying. Finally, the Lightning Man, while trying to save Hannah, gradually loses his Lightning Power due to the powerful black hole... Will the Lightning Man be able to escape the black hole and save Joyland in peril?