Thank you for viewing. A set of the QuizKnock Official Book and an A4-size clear file. - Clear File A4 Kinokuniya Bookstore Limited Edition - QuizKnock Official Book List price: 1300 yen Both items have been stored in a dark place with the original unopened plastic covers since they were purchased at the bookstore. They are in beautiful condition. I am also selling other QuizKnock-related products. I offer a small discount for combined purchases. Instant purchase is OK.