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.

In their attempt to help Rivaston due to the legend of a benevolent bandit, Quem faces a powerful enemy, and his companion Vise also becomes embroiled in the battle. Afterward, they both find the Joruri Mirror, which is capable of showing the sins of those who see their reflection in it.