It was serialized in the Kodansha publication Weekly Shōnen Magazine from May 2003 until October 2009, and was collected in twenty-eight tankōbon volumes, totalling 232 chapters - 18 to 20 pages each. They took the designs for the main protagonists from their earlier manga called Cardcaptor Sakura. Tsubasa was conceived when four Clamp artists wanted to create a manga series that connected all their previous works. They search for Sakura's memories, which were scattered in various worlds in the form of angelic-like feathers, as retrieving them will help save her very being. The Dimensional Witch Yūko Ichihara instructs him to go with two people, Kurogane and Fai D. The plot follows how Sakura, the princess of the Kingdom of Clow, loses all her memories and how Syaoran, a young archaeologist who is her childhood friend, goes on arduous adventures to save her, with two other companions. It takes place in the same fictional universe as many of Clamp's other manga series, most notably xxxHolic.
Tsubasa: Reservoir Chronicle ( Japanese: ツバサ- RESERVoir CHRoNiCLE ( レザヴォア クロニクル )-, Hepburn: Tsubasa: Rezaboa Kuronikuru) is a Japanese manga series written and illustrated by the manga artist group Clamp. Tsubasa Reservoir Chronicle the Movie: The Princess in the Birdcage Kingdom (film).