I hope you had fun last night

The hero Edmond, who defeated the demon king and rescued his beloved princess. However, with the disappearance of the demon king, the forces that had been balanced by the existence of the demon king again, and the darkness begins to cover the earth. On their way home, the group sought a night's rest in the hot spring town, but that evening, wealthy merchants, barbarians, and mysterious guests took aim at the princess. In the midst of a swirl of conspiracies and temptations, can you become the guardian of the princess, defeating desire and darkness, leading to true happiness?