Honzuki no Gekokujou: Shisho ni Naru Tame ni wa Shudan wo Erandeiraremasen (Ascendance of a Bookworm)

Honzuki no Gekokujou: Shisho ni Naru Tame ni wa Shudan wo Erandeiraremasen (本好きの下剋上 ～司書になるためには手段を選んでいられません～), also known as Ascendance of a Bookworm is an anime series based on the light novel of the same name written by Miya Kazuki and illustrated by Yu Shiina.