How far would you go to avoid an arranged marriage to someone who hates you? Run away from home? Take the case to court? Swear a blood oath to an eldritch horror sealed away for centuries, setting yourself on a path to damnation, and the world on a path to ruin?
What's that you say? That last option seems a little crazy? Well, Sionann has made her choice. The question now is whether you want to read about it. She seems determined to enjoy it, so maybe you will too.