Kimihiro leaves Yûko's side and, with his rival Dômeki, goes on a spirit-busting adventure for his beloved Himawari. Then Yûko gives a woman a box that must never be opened because it contains a terrifying magical device.

Translation of: xxx horikku. "A Del rey Book"--T.p. verso. "xxxHolic crosses over with Tsubasa. Although it isn't necessary to read Tsubasa to understand the events in xxxHolic, you'll get to see the same events from different perspectives if you read both!"--T.p. verso. "Includes special extras after the story"--Cover p. [4]. "A special appearance by the characters of Tsubasa in xxxHolic vol. 3"--Cover p. [4]. This book is printed "manga-style" in the authentic Japanese right-to-left format.