This is from the 1st to the 12th volume, but volume 4 is missing. I received this as last year's edition. Unopened. Includes answer key. Volume 12 has some slight creasing. This is a used item. There may be differences in the feel of use and the way colors appear. Please only purchase if you understand this. Shipping may be changed to Yuu Yuu Mercari delivery. Thank you for your understanding.