Adult PC Game: Paize Knightess Ellen and the Dungeon Town of Sodom v1.10 by dHR-ken Archive

The dungeon; an ancient relic from the time of the Demon Lord.
However, countless treasures and monsters remain inside, awaiting brave adventurers.
Naturally, the nearby town flourished with the arrival of such fortune-seekers.
Knightess Ellen now heads to that town, upon receiving orders to investigate and put an end to goblins invading the countryside.
At her side is trusty yet unreliable wizard Lillia.
The town comes into view. Ellen and Lillia spur on their horses, unaware of what awaited them...