A revised edition of "Nil Admirari no Tenbin Official Artbook", published in April 2018! It includes approximately 40 additional pages of numerous illustrations drawn down after the publication of "Nil Admirari no Tenbin Official Artbook". In addition, a new short story written by Yuma Katagiri, who was in charge of the scenario in the original game, is included in the book, making this the definitive edition. There are no new illustrations drawn exclusively for this book, such as a new cover illustration (the cover illustration of "Nil Admirari no Tenbin Official Artbook" is published in the magazine).