Attack on Titan: Before the Fall, Vol. 4

#4 in 進撃の巨人 Before the Fall [Shingeki no Kyojin: Before the Fall] - Manga

進撃の巨人 Before the Fall [Shingeki no Kyojin: Before the Fall] - Manga is a 14-book series with 14 primary works first released in 2014 with contributions by Ryo Suzukaze, 士貴智志, and 3 others.