Randy exterminates monsters in the surrounding areas and is respected as a hero. His wife and party member, Selena, both retire from adventuring after defeating the demon king. After giving birth to a daughter, they live peaceful lives as villages.

As time passed and their daughter grew…

After mingling with the villagers in her husband’s place, an unfortunate circumstance causes a treasure to crack. A powerful monster is sealed in the treasure, and in order to fix the seal, she needs to gather materials from a dungeon.

A kind married woman becomes a sex slave of a lecherous dark guild. What fate awaits the wife of the hero…?