Plagued by a recurring dream,​ master thief and sorceress Lina Inverse discovers ancient evil and lovers cruelly parted.​ Dragged into a vortex of time,​ she must fight to restore history to its proper course.​ But what will she do when the fearsome power of the Dragon Slave spell fails her as she tries to change the past and save the future!

Lina Inverse and Naga the White Serpent are back! What begins as a routine bandit-stomping turns into the adventure of a lifetime involving magical golems, an ancient Elven weapon and even someone bent on destroying the world. It's a predicament only Lina and Naga could get themselves in to.

All Laia Einburg wants for her golem-making father Galia and her equally ambitious brother Huey is to end a long running feud. But her world gets turned upside down when short-stature Lina Inverse and overly endowed Naga the Serpent save Laia from a rampaging golem. A grateful, but smitten, Galia asks Lina to be a model for his work. Not to be outdone, Huey makes a similar request to Naga. The results are towering remote-controlled golems in the image of our favorite sorceresses! Huey gets all the proportions right, but Galia's taste is just weird. Adding insult to injury, Galia turns Lina into a magical battery pack! Officially, Lords Haizen and Granion commissioned these golems for a contest to determine the ruler of the city of Stoner. But the lords are secretly planning to use the golems as prototypes for an army of conquest! Can Lina and Naga save the city from tyranny?

Lina Inverse and her sidekick Naga the Serpent are happily enjoying lunch when the entire town ducks under cover before an invasion of Marlene Culvert and her legion of bloodthirsty dragons. The cause of the invasion? Marlene is in a feud with her father, the king, over her allowance. Lina leaps into action to defend the village against Marlene, her tetrad knights and her dragons, but her dependable Dragon Slave spell fails her. Right when she thinks she has won, the real battle has just begun.

Lina and Gourry visited the town in a certain beach. In that town, a mysterious incident which is that the person who had eaten the octopus was not able to speak the languages other than the octopus language happened frequently. And, Gourry who does not know the incident eats slices of raw octopus, and he cannot speak words other than the octopus language. Ameria and Zelgadiss who came there by chance are involved in the trouble, too and the fight with the clan of the octopus which lives in the beach starts.