Conquered the Dragon Goddesses

Haunted by a bloody past, exiled Prince Karen stumbles upon three slumbering Dragon Goddesses with world-ending power. An ancient voice guides him to conquer and bind them. To survive, he must face their hostility and break their wills, turning them into weapons to fight the demons that stole his kingdom. Can he conquer the Goddesses and claim his only path to revenge, or will their power consume him first?