By day, Shi-yeon is an employee at a natural history museum. By night, she's a top-ranking woman warrior in the Nine-Tailed Fox clan, charged with preserving the delicate balance between man and fox. But her world is sent spinning when an atrocious serial murder, where the victims have had their internal organs gouged out is uncovered.
Shi-yeon is a museum employee by day and a warrior in the Nine-Tailed Fox clan by night, tasked with maintaining harmony between humans and foxes. However, her peaceful existence is disrupted when a gruesome serial murder case emerges, where victims have had their internal organs removed.