Sylphy is a skilled thief who steals to keep herself and her chronically ill sister alive in the slums. When she hears about the Orb of the Abyss — a rare and powerful relic locked in a vault deep inside the Kingdom of Diezel, a land defined by its culture of spirit worship — she times her approach to coincide with the kingdom's week-long Spirit Festival. The heist goes wrong immediately. She surfaces from the attempt as a convicted criminal and a slave of the very kingdom she was trying to rob. Her only path to freedom now runs through saving the kingdom that imprisoned her, which is going to require doing some things that do not sit well with her particular moral framework.