Tsubasa volume 7

Syaoran and his friends are on a quest to retrieve the magically potent feather-shaped shards of Princess Sakura's memory. The search has led them to the country of Oto, a world with the romantic feel of Japan in the early 1900s. However, another dimension traveller has shown up as well - the immensely powerful Seishiro, who first trained Syaoran.