-al fine- is the second and final official guide for the series Nabari no Ou. It was first published in 2011, around the same time as the final volume (Volume 14), and covers the entirety of the manga's content. It also includes 25 colour illustrations, interviews, etc.
Scissors and Lemon
Scissors and Lemon is the bonus chapter (omake) included in the guidebook.
The official guide -al fine- comes with a drama CD consisting of 5 tracks. The original script is written by Yuhki Kamatani which is included in the book, along with bonus illustrations for the stories.