A young kitsune must navigate a treacherous world of gods and demons to fulfill a sacred quest. In a land where spirits and mortals intertwine, Yumeko, a half-human, half-yokai, is tasked with delivering a sacred sword to the Hidden City. She must overcome the machinations of the cunning Hakaimono, a demon lord who seeks to plunge the world into eternal darkness, and the distrust of the gods themselves. Her journey is fraught with peril, forcing her to confront her own dual nature and the prejudices of those she seeks to protect, all while racing against time to prevent a catastrophic war.

The Shadow of the Fox series is celebrated for its intricate world-building and compelling protagonist. Readers often praise Julie Kagawa's ability to weave Japanese mythology into a fast-paced narrative filled with action and suspense. The series is noted for its strong female lead who grapples with identity and destiny amidst a backdrop of divine and demonic conflict. The blend of fantasy elements with a quest narrative has garnered a dedicated following, eager to see Yumeko's journey unfold.