| From the manual of the English edition
It is the distant future. Humanity’s past glories are but a forgotten memory, its greatest achievements vanished into dust on the wind. The world that remains-a strange and savage place- is dying. The few humans who remain now live a medieval existence, eking out what sustenance they can from a harsh and unforgiving land. Dark, twisted creatures known as Shades roam the world, bringing with them terror and death. Fear and chaos rule each day. As it did yesterday. As it will tomorrow. In this world lives a modest, unassuming man and his young daughter. She has been infected by a deadly disease known as the Black Scrawl, and so her father has sworn to journey in search of a cure.
The adventure that ensues will be beyond anything he has ever experienced. He will encounter Grimoire Weiss, an ancient book of almost unbelievable power who can use words as weapons. He will face off against Grimoire Noir, a supposed harbinger of the end times. And he will learn the truth behind both the legendary Sealed Verses, and the cursed Shades that hound his every step. As the world collapses into chaos around him, as his very mind betrays him, the man will press on with a single, dim light flickering in his mind:
He will save his daughter. No matter what the cost.
The game was released as Nier Gestalt with an older protagonist and as Nier Replicant with a younger main character.