Tsubasa: RESERVoir CHRoNiCLE

But they’re not the people you know. Sakura is the princess of Clow—and possessor of a mysterious, misunderstood power that promises to change the world. Syaoran is her childhood friend and leader of the archaeological dig that took his father’s life. They reside in an alternate reality . . . where whatever you least expect can happen—and does. When Sakura ventures to the dig site to declare her love for Syaoran, a puzzling symbol is uncovered—which triggers a remarkable quest. Now Syaoran embarks upon a desperate journey through other worlds—all in the name of saving Sakura.

“The world is a very small place, but for those who know it…it is very, very large. And the world, when it is viewed by those who ‘know’— is far larger than just one world can hold!”
The famous CLAMP brings back the characters from all their creations for an ultimate showdown in this multi-dimensional tale.
This is the story of four travelers, bound by fate and by prophesied future. Sakura is the princess of Clow Country, and possessor of a strange power that promises to change the world. Syaoran is an aspiring archaeologist and her childhood friend. When Sakura is endangered by the plan a certain man has for the future, the princess’ memories are scattered across dimensions in the form of feathers, and Syaoran is forced to go on a desperate journey to retrieve them. They are accompanied by Fay D. Flourite, a magician running from the horrible truth of his past, and Kurogane, a rough-mannered ninja trying to get back to his world. However, the ability to cross worlds demands a great price, and each of them must pay the Dimensional Witch with what he or she values most. In order to save his princess, Syaoran must give up his relationship with her. Even if he gathers all of Sakura’s memories, she will never remember their past together…
But the world is not so simple. The very moment these four made this decision, their destinies are sealed into a tragic course…as everyone in the group has their own secrets. Visions of the future are seen, and prophesies are made. The cruel future which lies ahead reads only of betrayal, abandonment, devastation and anguish.

The power to cross over dimensions is one that is deeply coveted — a lesson that childhood friends Sakura and Syaoran learn the hard way when an unknown enemy attacks an archaeological dig in their country.  As a result, Sakura’s memories are scattered to different dimensions, causing her to fall into a deep sleep.  In order to save Sakura’s life, she and Syaoran must journey to various worlds in search of her memories, with the help of fellow travelers, Fai and Kurogane.  But finding Sakura’s memories won’t be easy, and the price for traveling through time and space is high…