Goku, Supreme Kai, and Glorio head out to the "Demon Realm" first. Their plane travels through space and a mysterious dimension. They arrive at the entrance to the Demon Realm, the "Third Demon World"!

The masked Majin who appeared before Goku and his companions is a young girl named Panzy! While Glorio gives her the cold shoulder, Panzy insists on acting as their guide. The group reaches a suspicious castle