Tsubasa Chronicle, xxxHolic, Card Captor Sakura and most of the other Clamp Work is all in the same universe (not same planets/space, just different parallel dimensions) . Meaning they could potentially meet each other.
In xxxHolic, the dimension witch Yuuko has the same magical rod that Card Captor Sakura has, implies that it knows Clow Reed from the CCS universe (It may have been the same Clow Reed in every dimensions, but not sure of this).
Summing it up: xxxHolic and Tsubasa Chronicle is linked, happening side by side, while CCS and Tsubasa Chronicles happens independently of each other, altho xxxHolic mentions CCS as much as other CLAMP works. |