Living alone after the loss of his parents, high school student Kimihiro Watanuki has the unique ability to see otherworldly creatures that are inexplicably drawn to him. These spirits frequently disrupt his daily life, and he yearns for a way to be free from them. One day, while running from a group of spirits, he seeks refuge in a mysterious shop. There, he meets Yuuko Ichihara, the enigmatic owner, who claims she can grant wishes—for a price.
Yuuko offers to fulfill Watanuki's wish, but in return, he must work at her shop to pay for it. As part of Yuuko’s employ, Watanuki becomes increasingly entangled with spirits and the supernatural world. Before he can escape this realm, he must navigate through various inexplicable encounters. How will he manage these challenges?
xxxHOLiC was originally published in English by Del Rey Manga from April 27, 2004, to February 21, 2012. Kodansha Comics USA later republished the series in omnibus editions starting from March 18, 2014, until September 8, 2015. The final two volumes were released as 2-in-1 editions, while the rest were 3-in-1 editions. The manga was also published in Spain by Norma Editorial from July 2004 to October 2011; in Brazil by Editora JBC in 38 volumes from March 2006 to October 2011; and in Mexico by Editorial Kamite from October 27, 2018, to April 19, 2024.
The series was adapted into a Japanese live-action TV series that aired from February 24, 2013, to April 14, 2013. Additionally, a live-action film adaptation premiered on April 29, 2022.