Mousou Endemic, Kagura Games - The Saint Wife's Newlywed Trials Ver.1.01 Final Steam + Full Save (uncen-eng) - Adult Sex Game

Dirk, the hero who saved the world, was granted the title of crown prince for defeating the Demon Lord. He was accompanied on his journey by Marianne, a priestess from the countryside. However, the future emperor isn't permitted to marry a commoner, so their fairy-tale ending was never meant to be.