On Valentine's Day, Watanuki has to watch Domeki being showered with gifts from girls while he receives none, but then he discovers that he has a secret admirer too--one who is not quite human.

Translated from the Japanese. "First published in serialization and subsequently published in book form by Kodansha Ltd., Tokyo, in 2004"--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"--P. [7]. Book reads from right to left in the traditional Japanese format.