Tsubasa.

Syaoran, Fai, Kurogane, and Mokona venture to the Hanshin Republic to find one of the missing pieces of Sakura's memory transformed into magically powerful feathers. There, Syaoran meets his "Kudan": a fierce wolf-spirit whose fiery power mirrors Syaoran's personal strength. But with foes like a pop idol who sings words of pain, Syaoran's hunt for feathers is no child's game!