This is a set of "Attack on Titan" (Shingeki no Kyojin) - all volumes, "The Science of Fantasy" (Kuso Kagaku Dokuhon), and "Attack on Titan: Before the Fall" volumes 1-9 and 12. Volumes 1-10, volume 33, and "Before the Fall" volume 1 are first editions. Volumes 22, "The Science of Fantasy," and "Before the Fall" volume 1 do not have their obi strips. There is some discoloration and staining, but they should be readable without issue.