Quem Quaeritis, a young adventurer, dreams of being the first to conquer the Heaven's Ladder dungeon, known for being the most challenging of all.
However, two shocking events disrupt her path: a demon attacks her, unleashing sexual desires, and she encounters a mysterious woman who could completely change her destiny.

Based on the erotic doujin game by NupuryuNet (ぬぷ竜の里).