Libra of Nil Admirari

is a Japanese otome visual novel video game developed by Otomate for PlayStation Vita. The first game "Teito Genwaku Kitan" was first released on April 21, 2016, and its sequel "Kuroyuri En'yōtan" was released in September 19, 2017. An anime adaptation of the first game premiered on April 8, 2018.

Plot
In an alternate timeline, Japan's Taisho era lasted until 1936 instead of ending in 1926. During this time, Tsugumi Kuze agrees to an arranged marriage to save her family's honor, but before following through, her brother commits suicide by fire while holding an old book. Before she can make sense of this tragedy, the Imperial Library Information Assets Management Bureau appears and informs her of books called Maremono, which exert a great influence on those who read it.