A young man on a journey to save his sister [Yonah](https://anilist.co/character/138305/Yonah), who is afflicted with a disease called the Black Scrawl. Along the way, he befriends [Grimoire Weiss](https://anilist.co/character/317452/Shiro-no-Sho) and [Kaine](https://anilist.co/character/138306/Kain), and eventually becomes a parental substitute for a boy named [Emil](https://anilist.co/character/138302/Emil), tapping into his overprotective instincts to become a pillar of strength to help the boy cope with his numerous issues.

When alien forces invade with an army of Machines, the remnants of humanity must depend on Androids of their own design – the placid 2B and the excitable 9S – to survive. 
(Source: Viz Media)

The distant future, 5012. 
The sudden aerial invasion of Earth by ＜Aliens＞ and
their creations ＜Machine Lifeforms＞led mankind to the brink of extinction.
The surviving number of humans who took refuge on the moon to organize a counterattack using
＜android＞ soldiers to recapture Earth. 

However, the war reaches a stalemate as the ＜Machine Lifeforms＞ continue to multiply infinitely.
In turn, humanity deploys anew unit of android soldiers as an ultimate weapon: ＜YoRHa＞ 
Newly dispatched to Earth ＜2B＞ joins＜9S＞, the analyst currently stationed there, where amid their mission, they encounter a myriad of mysterious phenomena... 

This is the story of these lifeless ＜androids＞ and their endless fight for the sake of mankind.
 
(Source: NieR:Automata Ver1.1a Official USA Website) 
Note: Episodes 9, 10, 11, 12 aired back-to-back on July 23, 2023.

A collection of short stories about Nier:Automata.

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.