Yuin Henyl cares for his sister, Aela Henyl, more than anything but since her accident he's been spending more time with his father in his shop or running errands in town. He doesn't see it but she is as strong willed as ever and yearns for adventure. A scuffle at the shop brings Shiera into their lives and forces a power from Yuin he had no clue that his body was capable of. Aela knew it all along and is more than willing to take the new found opportunity to see the world outside her room. Their adventure introduces them to dangerous and odd characters as they travel across the snowy Quampo landscape.