finale alongside the vampires and Fūma. Seishirō is a crossover character from Tokyo Babylon and X, Seishirō Sakurazuka. Fūma is Seishirō's younger brother, who is also a treasure hunter and the leader of the people of Tokyo Tower. He arrived in Tokyo four years earlier along with a magical feather of Sakura. He appears to have an interest in Kamui whom he often battles in Tokyo, with both of them being known as the strongest fighters from the area. He is also a friend of Yūko Ichihara, for whom he retrieves items for whenever he traverses to different dimensions. Fūma later appears in Japan Country to give Kurogane a robotic arm while working for Yūko. Some time before this, Fūma encountered Syaoran, realizing he became far more stronger than how Seishirō trained him, but the fight's outcome was unknown. Fūma is a crossover from one of the main characters from the series X, Fūma Monou. Princess Tomoyo is a princess of a feudal country called Japan who sends the ninja Kurogane on the quest that causes him to join the dimension travelers. Tomoyo is the , a powerful miko sorceress responsible for maintaining the wards of Japan that protect the country from demons. She is also a dreamseer with the ability to see into other people's dreams and can send trans-dimensional messages through dreams. However, she gives up her dreamseer power to Yūko as the price for bringing Kurogane's group to Japan as she manages to see them in danger following their encounter with Ashura-ō. Another incarnation of her known as appears in Piffle World, where she organizes a race whose winner would rewarded with one of Sakura's feathers. The whole event is then revealed to have been made to return the feather to Sakura as Princess Tomoyo contacted her about the group's arrival. Another incarnation appears in the animated film in which she is the princess from the Birdcage Kingdom and is opposed by her uncle. Ashura-ō is the King of Seresu and a powerful magician who raised Fai D. Flowright after rescuing him from the tower in Valeria. At the start of the series, Ashura-ō is placed in an enchanted sleep by Fai, guarded by Chi. Ashura-ō is the reason why Fai seeks to travel to multiple dimensions and avoids returning to Seresu. It is later revealed that Ashura-ō regularly went on killing sprees among his subjects, and