Lina Inverse and her sidekick Naga the Serpent are enjoying lunch when the entire town rushes indoors as Marlene Culvert and her legion of bloodthirsty dragons advance. The invasion stems from Marlene’s feud with her father, the king, over her allowance. Lina leaps into action to defend the village against Marlene, her tetrad knights, and the dragons, but her dependable Dragon Slave spell fails her. Just when she thinks she has won, the real battle begins.