"Chironup no Kitsune" is a fantasy anime series set in a rural Japanese village where humans and spirits coexist. The narrative centers on Chihiro, a young girl who moves to the countryside with her family. Shortly after their arrival, Chihiro encounters a mysterious fox spirit named Chironup, who is bound to protect the village and its inhabitants from malevolent forces. Chironup, though initially aloof and wary of humans, forms a bond with Chihiro after she demonstrates kindness and respect for the natural world.

The village is depicted as a place where ancient traditions and spiritual beliefs are deeply intertwined with daily life. Chihiro learns that the balance between the human and spirit realms is fragile, maintained by rituals and offerings to the local deities. However, this balance is threatened by a series of supernatural disturbances caused by a vengeful spirit seeking to disrupt the harmony. Chironup, as the guardian fox spirit, is tasked with confronting this threat, but his powers are waning due to the villagers' diminishing faith in the old ways.

As the story progresses, Chihiro becomes increasingly involved in the spiritual affairs of the village. She assists Chironup in uncovering the origins of the vengeful spirit, which is tied to a tragic event from the village's past. Through their journey, Chihiro and Chironup encounter various other spirits, both benevolent and malevolent, each with their own stories and connections to the human world. The narrative explores themes of coexistence, respect for nature, and the consequences of neglecting cultural heritage.

The main characters include Chihiro, whose curiosity and empathy drive much of the plot; Chironup, the stoic yet compassionate fox spirit with a deep sense of duty; and the villagers, who represent a range of attitudes toward the spiritual world, from reverence to skepticism. The series balances episodic storytelling with an overarching plot, gradually revealing the history of the village and the spirits that inhabit it. The resolution hinges on Chihiro and Chironup's efforts to restore the village's spiritual balance, emphasizing the importance of mutual understanding between humans and the supernatural.