Aoi Bungaku Series is adapted from renowned modern Japanese literary classics: Osamu Dazai's Ningen Shikkaku and Hashire, Melos!, Ango Sakaguchi's Sakura no Miri no Mankai no Shita, Natsume Souseki's Kokoro, and Ryuunosuke Akutagawa's Kumo no Ito and Jigoku.