Thank you for viewing. Horizon on the Boundary Line fan book. I believe it's a doujinshi (self-published work). Published on December 31, 2012. The inside is in good condition, but the top of the spine seems to have a slight discoloration if you look closely. For those who understand that this is a long-term home storage item, thank you. #Horizon #AtorieMiyabi #MiyabiFujieda