Tsubasa: WoRLD CHRoNiCLE volume 3 features story and art by CLAMP.

Upon arriving at the utaki, Syaoran is immediately summoned by the massive tree that stands before him. Watanuki and Fai are rejected by the tree, leaving them with nothing to do but wait and watch as its trunk begins to mysteriously glow. Inside, Syaoran is forced to face a painful truth, and forced to make an even more painful decision…