XXXHolic

Kimihiro Watanuki is a high school student plagued by ayakashi spirits which are invisible to everyone else but him. The series begins when Watanuki stumbles, seemingly by chance, into a shop that grants wishes. The shop is owned by Yūko Ichihara, a mysterious witch of many names and esoteric renown. For a price, she offers to grant Watanuki's wish to be rid of the spirits.

The price, according to Yūko, must be of equal value; so, as payment, he must become Yūko's temporary, part-time cook and housekeeper. While his established job consists of household chores, Yūko increasingly sends him on errands of a supernatural or spiritual nature as the series develops. Himawari Kunogi, Watanuki's love interest, and Shizuka Dōmeki, a classmate whom Watanuki initially detests, occasionally join him in his work as per Yūko's request. The three become increasingly close, and though Watanuki is often annoyed with Dōmeki, he grows to value the new friendships he makes and his life at the wish shop.

The series achieved strong sales in Japan, with its thirteenth volume ranking 43rd among the top 50 best-selling manga in the country during 2008. By May 2015, the manga had 13.7 million copies in circulation. By January 2025, it had over 14.5 million copies in circulation.

The series also performed well in North America, where the first volume debuted at sixth place on Nielsen Bookscan's weekly best-seller list for graphic novels. Volume 13 reached the sixth position on the New York Times manga best-seller list following its April 2009 release. According to the New York Times, xxxHolic was the sixth best-selling manga in the United States in 2009. In Mania Entertainment's "Best Manga Awards For 2005", xxxHolic won the "Best Mature" category.