In the fight against the demons of the skylands, Sunrise has one of the rarest powers: that of a lure. Where demons normally feed by tormenting their victims, Sunrise draws them with her happiness. She doesn't want to hunt demons, but when a hunter team arrives at her village to ask for her help, she agrees. It should be easy: they just need her as bait for a pain demon that is too fast for them to capture otherwise. And a typical pain demon is no match for an experienced team of demon hunters. But this is no typical demon. And it has its own plans. It has no intention of being trapped, and is not worried about the hunter team. No, its main concern is: what does a demon who's spent millennia torturing and tormenting humans know about making one happy?

Demon hunters trap demons. They do not help them avoid capture, and they do not help them reform. Everyone knows that demons are innately evil and cannot change. But what if everyone is wrong? After a demon took Sunrise prisoner half a season ago, it pledged to her that it would reform. That after millennia of feeding on the suffering of others, it would stop. In exchange, she promised to do her best to provide it with her happiness to feed upon instead. Her life, and the life of everyone she loves, depends upon this pledge. In some ways, it is the life Sunrise has always wanted: traveling the skylands with a swift, powerful protector, visiting strange places, learning a new language, and seeing things she'd not even imagined existed back in Oak-by-the-Water. But the demon is lying to her, and if she finds out the truth ... ... how can she be happy then?