"Yuuna and the Haunted Hot Springs" centers on Kogarashi Fuyuzora, a teenager with psychic abilities who has spent much of his life exorcising spirits. Seeking a stable life, he moves into a low-cost boarding house called Yuragi Inn, only to discover it is haunted by Yuuna Yunohana, a cheerful ghost who cannot remember her past or move on to the afterlife. Despite her spectral nature, Yuuna is friendly and often interacts with the living residents of the inn. Kogarashi resolves to help her uncover the truth about her death and lingering attachment to the world.

The inn is home to a colorful cast of characters, each with their own quirks and supernatural connections. Sagiri Ameno, the innkeeper’s daughter, is a shrine maiden with a shy demeanor and a crush on Kogarashi. Chisaki Miyazaki, a high school student and aspiring mangaka, often uses her artistic skills to create exaggerated depictions of the inn’s events. Oboro Shinto, a ninja-in-training, is fiercely competitive and harbors feelings for Kogarashi. Nonko Arahabaki, a busty and carefree woman, is revealed to be a powerful dragon deity. These characters, along with others, form a close-knit group that navigates both mundane and supernatural challenges.

The narrative blends comedy, romance, and supernatural elements, often focusing on the interactions between Kogarashi and the residents of Yuragi Inn. Episodes frequently explore themes of friendship, personal growth, and the bonds formed between the living and the dead. As Kogarashi delves deeper into Yuuna’s past, he uncovers clues about her life and the circumstances of her death, gradually piecing together the mystery that keeps her tethered to the world. The series balances lighthearted moments with emotional undertones, particularly as the characters confront their own insecurities and desires.

Throughout the story, Kogarashi’s psychic abilities are frequently tested as he encounters various spirits and supernatural phenomena. His growing bond with Yuuna and the other residents drives much of the plot, with romantic tensions and comedic misunderstandings adding to the dynamic. The series also incorporates action sequences, often involving Kogarashi’s battles against malevolent spirits or rival supernatural entities. As the story progresses, the focus remains on resolving Yuuna’s unfinished business while exploring the relationships and personal struggles of the ensemble cast.