Ervin has ousted Duke Lecard-the man behind the attack on Ariel 12 years ago. He's also bonded with more of Demon Lord Markel's daughters, bringing them into his family and claimed the Sin Castle of Greed as his new home. Now, he has to manage his new relationships with the nobles of his new fiefdom. But, others are rapidly approaching the City of Greed with their own designs for the young successor to the Demon Lord. How will the arrival of foreign princesses trigger Demon Lord Markel's wrath? Can Ervin put out the flames of war before they begin and stop his predecessor from carrying out a massacre?