Freya is about to turn fourteen when she will take up full duties of a Valkyrie - a collector of souls from humanity's battlefields. Unlike other Valkyries, Freya tries to understand what it is to be human: to make friends with girls her own age and laugh with boys, without the fear of causing their death with one touch. On her first battlefield mission, Freya reaps the soul of a soldier with unfinished business that sends her to the human world on a deadly quest.