The Indelible Memories

Syaoran starts remembering about Seishiro and that he was the one who taught Syaoran how to fight. Syaoran and Kurogane go to a tower full of Oni to get information on Seishiro. At the top of the tower they find out that Seishiro is not an Oni and that town hall is planning to eliminate him for interfering. They also find out that the highest level Oni is in the form of a human and can command all other Oni. Seishiro shows up at The Cat's Eye when only Fai and Sakura are there and asks Fai if Kurogane and Syaoran live there.