NieR

NieR Replicant ver.1.22474487139... : Project Gestalt Recollections File 1 novel, a prequel to NieR:Automata, is presented in this hardcover edition and was jointly written by Director Jun Eishima and writer Yoko Taro.
In the distant future, humanity struggles for survival against the threat of creatures called Shades. A boy named Nier lives with his little sister Yonah in one small village, scraping by on the goodwill of neighbors and friends.
When a terrible illness assails Yonah, Nier's life begins to change at a dizzying pace. Lunar Tears. The Black Scrawl. The Song of the Ancients. The Shadowlord. Petrification. These things and more will turn his world upside-down—and change it forever.
This is the first volume of NieR Replicant ver.1.22474487139... Project Gestalt Recollections, detailing the events leading from Nier's boyhood to his coming of age.

[From Square Enix Books]