In xxxHOLiC, Kimihiro Watanuki is trapped between ordinary school life and a world of spirits only he can see. The sight leaves him vulnerable to every stray apparition around him, and his attempts to live normally keep collapsing under the weight of the supernatural. One day he is guided to Yuuko's strange shop, where the elegant and enigmatic woman offers to ease his burden—but only if he agrees to work for her and pay the price she names.
As Watanuki serves at the shop, he becomes the center of one uncanny request after another, each case tied to someone's wish, fear, or hidden regret. Yuuko's bargains always carry consequences, and every encounter forces him to confront the rules that govern the unseen world around him. Alongside recurring figures such as Shizuka Dōmeki and Himawari Kunogi, his daily life shifts between school, folklore, comedy, and eerie mystery, with each strange event revealing how fragile the boundary is between the ordinary and the occult.
Blending self-contained supernatural tales with an increasingly intimate portrait of its cast, xxxHOLiC turns desire into a dangerous currency and asks what people are willing to sacrifice when they want the impossible.