Powerful sorceresses, Lina Inverse and Naga the Serpent take a vacation to the mysterious island known as Mipross, however they manage to find out there is trouble on the island due to a demon Joyrock. They meet a wizard named Rowdy Gabriev who helps them in trying to to defeat Joyrock.

Directed by Kazuo Yamazaki and Hiroshi Watanabe. This is the first movie of the popular Slayers series.