After Alchemy Strategist Yuit saves her friend Mirim from harassment by the queen's soldiers with the help of her elfen automaton Vante, Ymir shows up at her village the next day trying to procure Vante for the queen's military. Yuit finds an opportunity to escape but is later ambushed by Elina.

Seeking guidance from the church, Annelotte unwittingly angers the overzealous Inquisitor Sigui and is challenged to a duel. Annelotte must fight for her life as being declared a heretic by Sigui automatically comes with a sentence to be burned alive by holy fire.

Mirim has been equipped with the Hyper Vibration Armor and armed with the Hyper Vibration Sword "Infinite Slasher" by Ymir, who sends her to fight Annelotte under the queen's order.

Annelotte sneaks into Gainos Castle with Yuit and Vante to rescue Mirim, but she must get past Dragon Warrior Branwen first.

Annelotte finally confronts Mirim and her nearly invincible Hyper Vibration Armor, and in the middle of the fierce showdown, Captain Liliana's flying pirate ship suddenly appears in the sky above.

Vante is captured by Liliana, and Annelotte and Yuit must sneak on board her flying pirate ship to retrieve Vante. But they are not the only stowaways there.

Ymir recruits Summoner Aldra to join the queen's army. Aldra summons two underworld demons, Belphe and Dogor, to aid in her fight, but they are more interested in finding some tasty humans to feed on.

Annelotte accidentally travels to a small village of orphaned children, where she meets the self-proclaimed "Samurai God" Izumi. Realizing that Annelotte is a stronger and more skilled fighter, Izumi asks Annelotte to teach her better swordsmanship.

Annelotte and her band of rebels return to Gainos Castle with the intention of confronting the queen head-on, but Ymir has anticipated their arrival and set a dangerous trap for them.

Fierce battles rage across the castle as the forces of good clash with the forces of evil. Amidst the climatic showdown, a sinister secret is revealed.

Annelotte finally comes face-to-face with Thundercloud Queen Claudette, and the fate of the continent will be decided by the one who emerges victorious.