Tsubasa RESERVoir CHRoNiCLE - Season 2 Episode 14 Black Steel
Overview: Syaoran comes across "the book of memories," well a copy of it. Kurogane opens it and finds that nothign is written inside of it. He hands the book to Syaoran who opens the book and finds himself looking at a younger version of Kurogane. Can this be Kurogane's past?