NieR Chronicles 20 — The Voice on the Moon and Extinct Humanity

The Voice on the Moon, Extinct Humanity, and the Truth 9S Learns Alone

Spoiler notice: this chapter covers the YoRHa records 9S investigates late in Route B, the Commander’s explanation, the operators’ personal wishes, and Ending B. The investigation and confrontation belong to the time before the final battle with Eve. They are not moved into a new discovery after Ending B.

1. Examining a Restored Body and Finding a Gap in the System

Rescued from the Copied City, 9S recovers in the Bunker. 2B has successfully brought him out, but continues her own missions on the surface while he receives treatment. In Route B, the player goes through the process of 9S checking his memory, vision, and other functions. Opening his eyes and being able to move again is intertwined with checking whether the data within him continues normally.

For this 9S, an irregularity during synchronization is not simply noise to ignore. He examines the system and checks routes and materials he has not normally accessed. The ability previously used to open factory doors or disable enemy barriers now turns toward his own organization’s information systems. His curiosity and analytical abilities do not automatically stop depending on whether the target is a machine or YoRHa.

YoRHa soldiers are taught that the Council of Humanity is on the Moon and that they reclaim Earth under its command. 9S has carried out his missions within that explanation too. Yet the relationship between the Council and Project YoRHa in the records he finds does not match the established account. The supposed direction, in which an army was created because its masters above commanded it, appears reversed in the documents.

What 9S reads is not a single manual laying out every disposal plan from the outset. After passing through materials about body storage and transportation and entering a more restricted server, he finds an index of classified records about the Council of Humanity and YoRHa. Its entries include the command structure, support units, black boxes, and a backdoor. Seeing the titles in an index, however, is different from reading the full contents of every entry.

9S pays attention to that discrepancy. The document does not merely concern an equipment manufacturing date or details of a particular operation. The largest premises of his life are shaken: whom he fights for and who issues the orders. The kind of question raised by seeing the creators’ corpses beneath the enemy’s city now turns toward his own side.

2. What Is Preserved on the Moon and the People Said to Live There

Data about humans remains on the Moon. Records that humanity existed and preserved materials do not become false or vanish. But the explanation that living humans took refuge there and await YoRHa’s victory is a different matter. A server preserving records is not the same as a society of survivors. The secret 9S encounters lies in a system that has made soldiers believe those two things are one.

Humanity became extinct before the alien invasion. Project Gestalt’s failure and the subsequent passage of time, covered earlier in this series, have already occurred. Consequently, a YoRHa victory on Earth cannot lead to the promised ending of humans returning from the Moon and beginning human society again. The reward for war promised to soldiers does not match the world that actually remains.

The absence of humans does not mean androids are empty bodies without feelings. On the surface they already worry about one another, search for comrades who do not return, and live while repairing damaged bodies. Above those lives, however, stood the overriding command that they must protect humanity. What 9S has discovered is not evidence that his feelings do not exist, but the absence of the beings toward whom he was taught to direct those feelings and his loyalty.

Instead of revealing that absence, Council of Humanity broadcasts create the impression that human voices still watch over the soldiers from above. Receiving orders and encouragement, soldiers could connect their individual battles to a larger promise of return. Recorded information and the form of communication substitute for the presence of living masters. 9S can no longer hear those familiar voices with their former meaning.

3. The Fact the Commander Does Not Deny

Even after these questions arise, events on the surface do not stop. 9S performs the remote factory support followed in chapter 17, helping 2B and Pascal escape. After completing that assistance, he meets the Commander in the Bunker. He asks why the records show the Council of Humanity being created as part of Project YoRHa, reversing the order in the explanation he was taught.

The Commander answers by giving 9S the relevant classified materials. She does not simply evade the issue by claiming humans are alive or dismiss all the documents he saw as enemy fabrications. She explains that humanity is already gone and describes the impact that truth had on androids. For beings created to live for humanity, losing that purpose was a problem that shattered morale and the will to continue.

The story that humans remained on the Moon supplied a purpose in that empty place. The idea was that soldiers needed the goal of protecting masters who would return and reclaiming Earth in order to keep fighting. The Commander has led the army while knowing this. To 9S, she can no longer remain a commanding officer who knew as little as he did. At least regarding humanity’s absence, she is among those who know.

This scene does not establish that the Commander designed every hidden YoRHa plan and all the disposal procedures still to come. Her access to information also has limits. Knowing the secret of humanity’s supposed survival while commanding the military must be distinguished from controlling everything about YoRHa’s later destruction. She, too, will face danger inside the facility with her soldiers.

The Commander leaves 9S with the question of how to accept what he has learned. There is no solution in which all the material is immediately deleted before his eyes and he is returned to his previous belief. 9S must choose his next action while knowing. The intellectual achievement of uncovering a secret arrives together with the burden of continuing to live afterward.

4. Why He Returns to the Surface After Learning the Truth

Learning that humanity is absent does not make 2B on the surface disappear. She is still alive, facing crises in the factory and city. Anemone and the camp’s residents can still be attacked, and Pascal’s village remains a neighboring community to protect. Even if the largest explanation for the war collapses, the bodies of specific people who need help right now actually exist.

He has already helped the two escape the factory, and now, when the camp is attacked, he descends in a flight unit. He does not choose to abandon a comrade calling for help because of the lie in those documents. Amid the shock of discovering that he did not know what he had been fighting for, the desire to help someone in the present remains alive in its own right. His choice is not yet a complete conviction that answers every future question, but the direction of his action is clear.

At this point, 2B and 9S are not comrades who have examined the same information together and agreed on a new objective for the war. There are facts 9S has learned alone. He joins the crisis before deciding when or how to tell 2B. The wish to tell an important person the truth exists at the same time as the urgent need to help her now.

A Red Girl’s form is also briefly visible as he leaves the Bunker. 9S is not given a complete explanation of that presence at this point. The player can later recall the short appearance when encountering the same form again. A trace appears in advance: even within a place that looked like a safe support base, there are gazes and information unknown to the two soldiers.

5. 6O and 21O Beyond Mission Communications

The Bunker is not made solely of a cold system storing false information. Within it are the operators supporting 2B and 9S. 6O asks 2B about the surface and reveals personal feelings too. She speaks cheerfully, feels hurt when rejected in a relationship, and wonders about the landscapes of an Earth far from her. There is a life beyond the voice that transmits only missions within communication regulations.

An optional assignment allows 2B to show her a flower from the surface. After finding a desert rose, she sends photographic data rather than delivering the flower itself to the Bunker. The supporter in space cannot walk the actual ground seen by the soldier she guides. News of a small landscape and a flower therefore becomes a special gift. Apart from the enormous promise to reclaim Earth, there is a particular surface that one particular operator wants to see.

21O speaks to 9S more strictly and with greater restraint. Short conversations and cutting off personal topics do not mean she has no private wishes. Following optional data-analysis assignments reveals another interest through objects humans left behind and records of families. An operator organizing mission data begins to consider the relationship called family in relation to her own life.

She hopes androids might have such relationships too. That feeling need not be fixed as one particular romance or parental role. It shows someone wanting a closer life together beyond the names of those who provide and receive support within the same organization. When she later meets 9S after converting to a combat type, players who knew that wish will lose more than one infected enemy’s name.

These individuals’ feelings do not become false even for a reader who knows humanity is gone. A fabricated command system is separate from the experience of worrying about comrades or wishing for flowers and family within it. When the Bunker eventually falls, what disappears is not merely a building for deception. People who expected their own next days there are endangered along with it.

6. Another Gaze Layered Over the Same Ending

Route B moves toward the final battle with Eve. 9S helps 2B, hacks the enemy, and severs network connections. The victory and infection seen in Route A, followed by the scene in which 2B must end his body, unfold again. This time we watch that conclusion also knowing what information he possessed before joining the battle.

Added scenes show the Red Girls observing. It becomes clearer that someone else is watching the events in which the two soldiers save and lose each other. Their visible presence does not, however, turn the grief we have just witnessed into a play reciting predetermined lines. The two acted with their own bodies and memories at stake, and experienced the consequences as genuine loss.

9S’s consciousness remains within the machine network and returns. The outcome of the reunion connects to Ending A. Ending B is not a separate timeline granting the same pair another peaceful new life. After adding enemy memories and secrets of their own side that were previously unseen, it brings the reader to the point of moving toward the next events.

During the credits, a short playable section also lets us move 2B through the Bunker. She talks to people at the base, meets 9S after he has returned to an android body, and prepares for what comes next. Ordinary activities such as receiving recovery supplies from comrades show the voice that returned from a machine body entering familiar life once more. This reunion does not mean that the coming all-out offensive has already ended safely.

9S leaves the thought that a new all-out offensive began before he could settle his resolve to tell 2B the truth. Time still remains unresolved between them. The possibility of living with a comrade despite knowing humanity is gone cannot wait ahead of a larger military operation and the threat of infection. The following chapters revisit optional assignments that took place beforehand, then continue into how the offensive after victory brings down YoRHa itself.

Sources and Scope of Verification

This commentary connects the investigation of YoRHa records and meeting with the Commander in the game’s Route B, optional operator assignments, and Ending B’s added perspectives. Preserved lunar data is distinguished from a living human society. The Commander’s knowledge of humanity’s secret is not expanded into omniscient control over YoRHa’s entire disposal plan. Operator assignments are optional, not mandatory scenes completed in the same order in every playthrough. This is AI-assisted editorial material and does not reproduce original dialogue, lyrics, or novel text. Sources checked: 2026-10-18.

NieR:Automata — Steam

Council/YoRHa Records — NieR Wiki

Commander — NieR Wiki

Data Analysis Freak 2 — NieR Wiki

Or not to (B)e — NieR Wiki

Project YoRHa — NieR Wiki

Bunker — NieR Wiki