Mistress Riley was not born in Decadence. But upon her arrival quickly adopted it’s customs. Acquiring her entourage of pets very easily. It was not long before she had gained control of her own spot on Decadence Island. All of which does not mean much to her. Since the only reason she is here is to try and get back her Hero. Her Hero which is often found in the accompany of Enchantress Ari.
This infuriates Mistress Riley to know end. So she continues to grow her power in hopes that one day she can entice her Hero back to her.