Monastery of Adelia Abbey, a group of exorcism experts known as the "Battle Sister" gather.

One day, they receive a commission.

The commission requests them to clear the emerging evil spirits in a cave, which has now become a mining site.

The appearance of these evil spirits poses a threat to the kingdom's economic lifeline.

Many miners have gathered there, urgently needing rescue.

The one appointed for this task is the strongest battle sister, Leah.

Leah is an exorcist who has been fighting evil spirits since childhood.

She first arrives at the checkpoint near the cave entrance.

There, temporary accommodation for miners and various facilities for preparing tools are set up.

There is a natural hot spring, with male and female bath areas separated by only a curtain.

In addition, there is a "Brothel" created to satisfy male needs, and more...

Sister Leah, a devout sister dedicated to exorcism, whose life takes a sinful turn with lustful!

This is a simple adult RPG based on exploring bases and dungeons.

In the dungeon, there is no combat; you only need to chant magic to defeat enemies.

However, in the cave, due to the influence of evil spirits, the air is filled with "pheromone gas," and as you progress, the "erotic" becomes easier to increase.

As the "erotic" increases, the consumption of magic points will sharply increase.

(To make you defeat, super lusty poisonous swamps are placed throughout.)

Use the skill to exorcise evil spirits with one blow.

Erotic status - undergoes obvious changes with each H event!

Change outfits obtained in the equipment screen, influencing character illustrations.