Embers of Betrayal: Monster Girl Harem book 5

Gareth leads his companions to Pyreforge, a volcanic city ruled by Infernus, the Fire God, in a realm filled with open displays of intimacy. They discover that Infernus has grown jealous and oppressive, forbidding multiple lovers and creating unrest. Arriving amidst a power struggle, they witness Infernus condemn a "e;traitor."e; They learn that Infernus' jealousy stems from the Shadow Lord's influence, which corrupts virtues into control and suspicion, turning loved ones against each other. They are introduced to Azura, a storm daughter seeking refuge from the Shadow Lord's corruption in her own realm, and she offers her aid, explaining that her home has been consumed in this way because of the Shadow Lord.