You Had a Good Time Last Night, Didn't You?

After defeating the Demon King, the hero Edmond and his party rescue their beloved princess. However, with the Demon King's demise, the balance of power he maintained shatters, and darkness begins to once again shroud the land.
On their way home, the party seeks a night of peace in a hot spring town. That very night, however, a wealthy merchant, a barbarian general, and other mysterious figures all set their sights on the princess.
Amidst a whirlwind of plots and temptations, will you be able to become the princess's guardian, fight off desire and darkness, and lead her to true happiness...?