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Earth is a planet which was previously inhabited by humans before their effective extinction by a disease known as White Chlorination Syndrome. It serves as the main setting for the NieR series.

Characteristics

In the 27th century, the moon was fractured by an unknown event, resulting in a shift of the Earth's axis. The axis distortion caused a change in the Earth's normal day-night cycle, creating continual daytime in the area that would become known as the Kingdom of Day. The axis shift also led to the creation of the corresponding Kingdom of Night, where it is perpetually night.

Following the end of the 14th Machine War, the female Administrator, Her, of the Earth's quantum server absorbed the data of the damaged Red Girl after the fracturing of the machine network's ego. By assimilating the Red Girl's corrupted data, She was overcome with grief and hatred, and used her own reality-altering abilities to freeze both the Earth, including machines and androids, and time itself as well while using the Red Girl's powers to change the Earth's surface into a network of stone towers resembling the home planet of the machine lifeform's creators.

After the events of NieR Reincarnation, following the defeat of Her and the reincarnation of Fio to accompany her, both androids and machines have become unfrozen from Her's time-freeze and now inhabit the Earth again, though it is unknown how much organic life remains.

Story

The World of NieR

A series of Twitter posts detailing the world of NieR released during the launch of NieR Reincarnation.

The World of NieR 1

The World of NieR ①: 2003 A.D.

A white giant and a red dragon suddenly appear in Shinjuku. After they battle, an unknown particle called Maso causes a strange disease to ravage the area.[1]

The World of NieR 2

The World of NieR ②: 2016 A.D.

As the infected grow violent, countries around the world strengthen their militaries in response to the threat. Meanwhile, a Japanese research facility begins to study Maso, as well as possible weapons based off it.[2]

The World of NieR 3

The World of NieR ③: 2053 A.D.

Project Gestalt is launched to combat the disease. Human souls are separated from their bodies, but soon thereafter grow unstable, run amok, and perish. Despite this, a stable consciousness is eventually found that allows the project to proceed.[3]

The World of NieR 4

The World of NieR ④: 3470 A.D.

The original Gestalt dies.

Project Gestalt fails.[4]

The World of NieR 5

The World of NieR ⑤: 11937 A.D.

Unidentified objects emerge from outer space and begin deploying weapons known as machine lifeforms. The androids now living on Earth retreat to a space station known as the Bunker and begin work on a line of combat androids called YoRHa.[5]

The World of NieR 6

The World of NieR ⑥: 11941 A.D.

The first combat operation is carried out by the experimental YoRHa units. Ultimately, all but one of the sixteen units are destroyed in battle.[6]

The World of NieR 7

The World of NieR ⑦: 11945 A.D.

Despite the fall of the Bunker, the android army successfully destroys a large-scale machine lifeform facility, and the 14th Machine War comes to an end.[7]

The World of NieR 8

The World of NieR ⑧: [YEAR REDACTED]

The existence of a space containing endless rows of massive structures is confirmed. Information on the precise location and temporal axis of this space, now known as The Cage, is not made public.[8]

Areas

Kingdom of Day

Kingdom of Night

Species

Characters

Kingdom of Day

NieR

Nier (Father) Nier Nier (Brother) Nier Grimoire Weiss Weiss Kainé Kainé Emil Emil Yonah Yonah Devola Devola Popola Popola King of Facade Sechs Fyra Fyra Louise Louise Halua Halua Shadowlord (Brother) Shadowlord Grimoire Noir Noir Administrators Admins P-33 P-33

NieR:Automata

YoRHa No.2 Type B 2B YoRHa No.9 Type S 9S YoRHa Type A No.2 A2 Pod 042 Pod 042 Pod 153 Pod 153 Anemone Anemone Jackass Jackass Pascal Pascal Devola (Automata) Devola Popola (Automata) Popola Adam Adam Eve Eve Big Sister Machine Big Sis Little Sister Machine Little Sis Simone Simone Red Girl Red Girl Emil (Automata) Emil

Pearl Harbor Descent

Lily Lily Rose Rose YoRHa Type A No.4 No.4 YoRHa Type G No.16 No.16 YoRHa Type S No.21 No.21 Dahlia Dahlia Daisy Daisy Gerbera Gerbera Margaret Margaret

YoRHa Boys

Instructor Black Black YoRHa Type D No.2 (YoRHa Boys) No.2 YoRHa Type A No.3 (YoRHa Boys) No.3 YoRHa Type G No.4 (YoRHa Boys) No.4 YoRHa Type A No.6 (YoRHa Boys) No.6 YoRHa Type S No.21 (YoRHa Boys) No.21 YoRHa Type H No.9 (YoRHa Boys) No.9 YoRHa Type G No.22 (YoRHa Boys) No.22 Cactus Cactus Lotus Lotus Phlox Phlox

NieR Reincarnation

Fio Fio Her Her

Kingdom of Night

Accord Accord

Trivia

Gallery

Notes

  1. Hina is the 13th Crusader captain said to have slayed the last Red Eye in Jerusalem in the Grimoire NieR official timeline, with NieR Reincarnation directly showing the events set in NieR in Hina's Recollections of Dusk.
  2. Yuzuki is the last Red Eye said to have been slayed by the 13th Crusader captain in Jerusalem in the Grimoire NieR official timeline, with NieR Reincarnation directly showing the events set in NieR.
  3. Eleanor does not appear in NieR or any other media related to this entry, but NieR Reincarnation directly places her in the era of NieR.
  4. Operator 21O is not primarily stationed on Earth, but made the descent after requesting to be remodeled as a Type B unit for the final YoRHa operation.
  5. Noelle does not appear in NieR:Automata or any other media related to this entry, but NieR Reincarnation directly places her in the era of Automata.
  6. 6.0 6.1 Futaba and Yotsuba are not primarily stationed on Earth, but were stated to have been sent to Earth after the Pearl Harbor Descent Operation in the YoRHa Ver1.2 Musical evening show.
  7. Accord exists in both the Kingdoms of Day and Night.

References

  1. @NieRReinEN (August 13, 2021). The World of NieR ①: 2003 A.D. Twitter.
  2. @NieRReinEN (August 14, 2021). The World of NieR ②: 2016 A.D. Twitter.
  3. @NieRReinEN (August 16, 2021). The World of NieR ③: 2053 A.D. Twitter.
  4. @NieRReinEN (August 22, 2021). The World of NieR ④: 3470 A.D. Twitter.
  5. @NieRReinEN (August 22, 2021). The World of NieR ⑤: 11937 A.D. Twitter.
  6. @NieRReinEN (August 23, 2021). The World of NieR ⑥: 11941 A.D. Twitter.
  7. @NieRReinEN (August 24, 2021). The World of NieR ⑦: 11945 A.D. Twitter.
  8. @NieRReinEN (August 28, 2021). The World of NieR ⑧: [YEAR REDACTED]. Twitter.
  9. @NieR_Rein (February 17, 2025). 地平線の向こうまで続く、真っ白な砂の世界。 Twitter.