"Kabu no Isaki" is a manga series set in a rural Japanese village surrounded by mountains and forests, blending elements of slice-of-life, fantasy, and mystery. The protagonist, Isaki Kaburagi, is a young man who possesses a unique ability to see and interact with supernatural entities known as "yokai." These spirits, often tied to the natural world, range from benevolent to mischievous or even dangerous. Isaki's ability is inherited from his grandmother, who was a respected figure in the village for her knowledge of yokai and her role as a mediator between the human and spirit worlds.

The narrative unfolds as Isaki navigates his dual role as a bridge between humans and yokai, often resolving conflicts that arise from misunderstandings or the encroachment of modern life on the natural world. The village itself serves as a central setting, with its traditions, folklore, and close-knit community playing a significant role in the story. Isaki's interactions with yokai are not limited to problem-solving; they also explore themes of coexistence, respect for nature, and the preservation of cultural heritage.

Key characters include Isaki's childhood friend, Ritsu, who is skeptical of the supernatural but gradually becomes more involved in Isaki's world. Another important figure is Isaki's grandmother, whose wisdom and legacy guide him as he learns to balance his responsibilities. Various yokai, each with distinct personalities and backstories, appear throughout the series, contributing to its episodic yet interconnected structure. The manga delves into the origins and motivations of these spirits, often revealing their ties to human emotions or historical events.

The plot is driven by a mix of standalone episodes and longer arcs, with Isaki facing challenges that test his understanding of both humans and yokai. These challenges range from resolving disputes between villagers and spirits to confronting larger threats that disrupt the harmony of the natural world. The series maintains a contemplative tone, emphasizing the importance of empathy and communication in overcoming conflicts. Through its exploration of folklore and the supernatural, "Kabu no Isaki" offers a nuanced portrayal of the relationship between humanity and the unseen forces that shape their world.