When Alicia is on a stroll outside the castle, she encounters a humanoid slime monster. Attempting to eliminate it, she starts a fight, but is defeated by the slime which uses its tentacles skillfully. Restrained by the tentacles and unable to resist, Alicia is teased and toyed with. Draining her of her mana, the slime monster becomes ever more powerful... and finally ends up taking control over Alicia's body. Having procured her body, the Slime reads her memories... and realizes that there are plenty of delicious humans within the castle walls. Seeking its next meal, the slime monster enters the castle and... Alicia ends up defiling her beloved sister Terecia with her very own hands...