Noire is a girl who looks in her mid-to-late teens, with a slender figure, red eyes, and long black hair. Her hair is kept tied into two pigtails with blue ribbons, and go down to her waist. Her fringe isn't kept parted and she has two bangs that go down to her chin. Her attire consists of a maid-like black top with golden trimmings and white frills around her upper arm and chest, and also reveals a certain portion of her cleavage. Her skirt is white with black trimming and is rather frilled compared to her top, and goes down to her lower-thigh.
Noire, in a word, is tsundere. She is a girl who thinks highly of herself and strives to be number one in everything she does. Noire often does and say things but tries to play it off as if there is no more meaning behind her actions. It is possible that she is a very caring person at heart but masks it with snobby, arrogant attitude in the hopes people will not see through her facade.
As Black Heart, her eyes are lime green and her hair is pure white, and goes down below her shoulders somewhat, with her fringe standing above her eyes and bangs caressing her face. Her suit is black and white in color and the mechanical appearance is much more visible. It also exposes a mild amount of her cleavage. Her sleeves are pure black, with silver patches in the bicep and tricep area, her gauntlets are black with silver protrusions on the knuckle.
Black Heart's personality remains fairly unchanged in her goddess form. The only difference is that she becomes more aggressive and competitive than before, but other than that, she's basically the same.
Beginning of the End
In the beginning, Noire and the other CPUs along with Nepgear are defeated by CFW Magic which results in them being imprisoned in the Gamindustri Graveyard for three years. When Compa and IF come to rescue them, they find their Sharicite only strong enough to help Nepgear and not the others, resulting in them having to leave Noire and the others behind.
After Nepgear, who had be rescued by Compa and IF, returns with the other CPU Candidates, she is rescued along with the other CPUs and is reunited with her sister Uni. She and the other CPUs are taken to the Planeptune Basilicom to rest after finally being free from captivity.
When Nepgear and the others go to the Gamindustri Graveyard to check out the disturbance only to be defeated by CFW Magic, Noire and the other CPUs arrive just in time and save them. It is that she and the other goddesses reveal their human forms and she admits to being tired due to the lack of shares.
Noire accompanies the party to deal with the threat of ASIC by helping them to take down CFW Brave and destroy Arfoire's Factory, defeating Underling and saving Leanbox (only for them to later learn it was distraction so that ASIC could take over Planeptune), and then helping save the CPU Candidates and Histoire by defeating CFW Trick in LAN Castle.
Noire takes her revenge on CFW Magic along with the other CPUs by defeating her which results in Arfoire reviving due to them having defeated each of the CFWs who were originally apart of her to begin with.
Evil's Fading Silhouette
Noire and the others return to the Planeptune Basilicom to discuss their next course of action. With the Arfoire now revived, their options are limited to heading to the Gamindustri Graveyard and fighting her head on.
Normal/Branch End Route
After beating her, Arfoire's vessels begin to collapse but it is soon revealed that she is not truly defeated. Vert deduces that unless they seal her away that their victory will be a loss and so the four CPUs come together and use their bodies to seal Arfoire away for good.
After beating her her vessels begin to collapse but it is soon revealed that she is not truly defeated. Arfoire makes preparations to move to another vessel and Vert deduces that unless they stop her core they will be unable to defeat Arfoire. They are left with no choice but to flee and think of another plan.
Noire and the others return to Planeptune to explain the situation to the Oracles, however during the meeting they are notified that that a member of the Four Felons has appeared in each nation demanding for everyone to worship Arfoire or they will all be killed.
After hearing about Caelus from Mina, they seek her out and request information on how to beat Arfoire. Once they obtain the information they were looking for, Neptune and her friends head back to Basilicom to report their findings before relaxing in a hot spring prepared for them by Histoire. The following day, they head out to deal with the Four Felons.
After learning what to do they all head to the Heart of the Gamindustri Graveyard for their final showdown against her perfected form DOS Arfoire. They manage to defeat her and save the world from imminent destruction. In the ending of the game, Noire is shown to be working with Uni. Uni finishes her work before Noire and points out that Noire made a mistake which leads to her having to do everything all over again.
Apocalypse: Savior's Sorrow
The party returns to the Planeptune Basilicom to discuss their next course of action. Having struggled so hard against CFW Magic, they begin to doubt their ability to beat Arfoire on their own power. Nepgear suddenly remembers the story she heard about the unused cursed sword that can only be used to defeat evil. Having no other possibilities for defeating Arfoire, the Oracle began doing research on the sword while Neptune and the others go around and ask the townspeople for information.
After finding the sword they are told they must offer the lives of CPUs to power it. Everyone is surprised and naturally refuses to use such a horrible method to defeat the Deity of Sin. Nepgear proposes that other nations pour their shares into Planeptune and allow Neptune and Nepgear to fight Arfoire; that way no one will have to die. The CPUs instantly decline, not wanting to sacrifice their nations before themselves.
Nepgear still decides to follow through with her plan and goes as far as taking the other nation's shares. In Lastation they are confronted by Noire and Uni due to taking their shares. Nepgear and Neptune are forced to fight against them and eventually Noire impales herself with the cursed sword, knowing there is no other way to save Gamindustri and because she is well aware that Neptune and Nepgear are stronger than she is
Once again, Noire and Uni confronts the Planeptune sisters for taking Lastation's shares and loses but Nepgear breaks the sword before Noire can impale herself. The goddesses when they regroup make fun of Noire for being overly dramatic in that scene. Afterwards the goddesses work together pour all their shares and reforge the cursed blade.
With the new weapon the Deity of Sin is slain and the events of the true ending are shown.
After Neptune is defeated in the game, the game stops working. When Neptune enters the game and learns that viruses have ruined the game she saved up her allowance for, she gets mad. Noire is amazed that Neptune can legitimately get angry and wonders why she has an allowance in the first place. Nepgear explains that Neptune would buy every game she saw if she had unlimited access to money so an allowance is put to limit that. Noire then says "Planeptune's CPUs are so weird".
Zero Dimension Neptunia Z: Twilight of the Desperate CPU
Noire arrives with Uni, at mach speeds to Planeptune at IF's request in order to assist Neptune with finding Sanshiro's Soulful Patch to help Histoire. Neptune notes that she was fast and teased if she arrived only to see her. Noire tries to denies this so Neptune calls her a "tsundere". Noire chases Neptune around and bumps into a girl. She apologizes to her and carries on her chase. Noire blames Neptune for her causing another person unnecessary problems. Uni decides to get the girls back on track. Noire says they will meet up in the lobby of a hotel in 2 hours to discuss their findings. The Lastation sisters leave.
After two hours the girls arrive in the hotel and order some tea. Noire asks Uni to set up a video conference with the other CPUs. Nobody was able to find anything about Sanshiro's Soulful Patch. Vert does have a lead regarding the first CPU's sanctuary thanks to her gaming friend in Four Goddesses Online 2 and N-Chan. Noire doubts the validity of this, but the friend is a professor. The CPUs decide to trust the lead about the CPU's sanctuary. None of the CPUs including Noire are able to help Neptune with exploring the sanctuary because of the CPU Shift Period and the rampant rumors.
Neptune then asks why Noire came over to help her until now. Noire rats out Uni as she desired to assist Histoire so that Nepgear can return home sooner. Uni then rats out Noire who was concerned about Neptune's lack of competence. The two sisters embarrassed then decide to leave Neptune without their tea.
Hyper Dimension Neptunia G: The Golden Leaders, Reconstructors of Gamindustri
A few days after the events of the Zero Dimension, Noire and Uni arrive to Planeptune for a tea party at the Planeptune sisters' invitation. She vents her fustrations with the CPU Shift Period and baseless rumors that accompany them. Noire is supposedly a lonely defender of Gamindustri. Vert wonders who is behind this, is it the work of pranksters or an organized groups. Uni then tells Noire not to worry as Neptune has a plan. Noire tells her sister not to put some much trust in Neptune.
Neptune wants the CPUs to work together to overcome the CPU Shift Period. While it seems like a good idea, Noire is concerned about people skewing their intentions to a negative light. Neptune further clarifes, she wants to host a festival. Noire tells her they already have annual festivals. Neptune wants to spend every nation's budget on a multinational festival to celebrate all of Gamindustri. Noire agrees much to Uni's confusion, but Noire means to ignore the suggestion to spend everything but they should host a multi-national festival.
It takes a few months but the multi-national festival is prepared. The citizens' faith in the CPUs are restored and the rumors are largely ignored. In the festival, is a fighting event. Noire and the other CPUs are the semi-finalists. They decide on a four man battle royale to determine the winner. A group who introduces themselves as Gold Third crashes their fighting event. They challenge the CPUs who agree to it and are the defeated. A voice then declares that there is enough negativity thanks to this event and begin a rewrite. Another girl sounds desperate and tries to stop something form occurring.
There is a bright flash and Gamindustri has been rewritten. The CPUs are able to contact each other. They remember losing to the Golden Third and notice 4 golden towers appearing. They feel like they are in their respective nation and decide to investigate.
Noire and Uni meet up and decide to head back to the Basilicom. In the first city they walk through, they discover that no one remembers them. As a result, their shares drop dramatically and they cannot waste it to fly back to the Basilicom. They walk to the second city and decide to gain some more information.
Noire introduces the two of them as tourist to a Lastation city that is famous for having no tourist. As a result, the citizens get suspicious, and remember Noire in the flyer as a member of Secret Organization AffimaX criminal trying to overthrow the Lastation Basilicom. This upsets her as she would never overthrow her nation. The citizens use that to further solidify her guilt. The guards start pursuing her and her sister. Noire and Uni flee as they are not going to fight their own soldiers.
When cornered, Noire tells Uni to leave as they are only after her. She explains to her that if she is caught, at least Uni is there for insurance. Noire then flees to a dungeon. There, she befriends a cat who gets her out of a time the guards almost catch her. Noire lets the cat follow her. Near the end of the dungeon, the Lastation soldiers are under attack by a delusionary monster. The soldiers are unable to deal with it. Noire does not recognize this monster but she still fights it to protect the soldiers who are after her. They give their thanks but refuse to clear her charges. The soldiers run.
Noire defeats the monster but is wounded and tired as a result of this. She makes her way to Lastation but finally collapses due to wounds and exhaustion. A girl drags her to a nearby hotel and treats her wounds. Noire wakes up and sees her cat. The girl asks her how she is feeling and Noire thinks her cat is talking. She replies to her cat but eventually notices the girl. The girl teases Noire a bit about her cat and introduces herself as K-Sha.
Noire thanks her for treating her. K-Sha is rather embarrassed about talking off Noire's clothes to treat her but Noire tells her not to worry about it. K-Sha wonders if she wants to be seen and Noire denies this. Some time later, Noire carries some bags for K-Sha but when K-Sha sees some acquaintances, and so she pushes Noire away. Noire gets upset but guesses that it would not be good for her to be seen with a stranger less they discover the two are living together. K-Sha rather likes that, but Noire clarifies she is more of a freeloader. K-Sha then calls Noire her friend and Noire rather likes that.
K-Sha needs some medical ingredients so Noire offers her assistance. K-Sha refuses as she needs to heal and the ingredients are in the woods where there are strong monsters but Noire needs some exercise as part of her healing and paying K-Sha back. K-Sha reluctantly lets Noire go. When Noire finishes her quest, she discovers that the medical ingredients were to make medicine for her. K-Sha apologizes for not telling her. Noire says regardless she wanted to take the quest.
Noire asks K-Sha about the state of affairs for Lastation. She explains that there is supposed to be a member of Gold Third ruling. Noire does not know this so K-Sha wonders about that. Noire makes up the excuse that she came from a small village. K-Sha continues that the Basilicom actually rules since the Gold Third member does not like to rule. However, there are many factions infighting in Lastation.
Shortly after, the pair come to a crowd. A strong monster is rampaging in the woods. The soldiers are for some reason not responding. Noire decides to go and K-Sha again does not want to let her go. Noire says she has to, as she must help the citizens.
Noire tracks down the monster and notes it was similar to the previous monster she dealt with. She also finds the soldiers that were chasing her before. She berates them for their lack of competency. They get angry but allow Noire to deal with the monster. During the battle Noire gets distracted for a bit, so the monster tries to advantage of it but she was supported by sniper fire. Noire defeats the monster and returns.
Noire apologizes for taking more injuries but K-Sha is just glad to see her back. The Lastation citizens give Noire a pat on her back which only hurts her due to her injuries. K-Sha says it is a Lastation tradition but Noire says that has never been the case.
Lastation guards show up and demand Noire. K-Sha hides Noire and K-Sha acts hostile towards the guards. The guards decide to arrest K-Sha and forcefully drag her, Noire turns herself in to save K-Sha.
In prison, Noire overhears the plan to use delusionary monsters to invade other nations. Invading other nations will most certainly damage her nation. Uni helps her escape.
Noire and Uni decide to infiltrate the Lastation Basilicom and run into the Order Woman who wants war. Noire and Uni thought the Order was destroyed but the survivors built a new Order. They took advantage of a Gold Third member who does not want to rule to take over the Basilicom so they can wage war.
She calls the guards so Noire and Uni escape. They begin hunting all sorts of monsters via quest request to lower the war potential of Lastation so war would not be declared. Eventually the girls run into K-Sha who gives Noire and bento and was prepared to meet eventually ever since she was arrested. Noire introduces her sister to K-Sha.
K-Sha wants Noire to allow her to be assistance. She offers to gather intelligence. Noire allows this. K-Sha reports that monsters have shown up in the subway system in a nearby town. After K-Sha wants Noire to be safe while handling this. She promises to be back and the two sisters rush of into the nearby city.
Noire is upset to discover that not everyone has evacuated from the subway and that the soldiers lost contact with their rescue team. Noire barges her way through and injuries a few guards. In the subway station, she detects a presence but finds nothing.
Noire finds the rescue team and the citizens under attack by a delusionary monster. She tries to save them but they accuse her of releasing the monster and trying to steal form them when they. Uni is about to snap at them but Noire tells her to stop, she will allow them to capture her after she handles the monster. The citizes then allow her to fight the monster. Again, Noire is supported by sniper fire but not from Uni.
They defeat the monster and return to the surface. The soldiers do not want to arrest her and the citizens give her a hotel to rest in. K-Sha shows up and Noire rooms with K-Sha while Uni gets her own room. The next day, Noire wakes up early to do a quest, leaving K-Sha who seems tired to rest. She is to acquire an item from a monster and leaves to a cave alone. It takes a while and the monster she finds is a delusionary monster. Regardless, she is able to retrieve the item and returns to Lastation.
She finds Uni acting weird and all clingy towards her. She worries about her sister who seems the be exhausted from today despite not really doing anything and decides to take care of her. K-Sha made Noire dinner which she is grateful for but she must make sure Uni is alright.
The next day, K-Sha attacks Uni and Noire defends her sister. K-Sha then challenges Uni to a duel for Noire. She says she will be waiting in the Golden Summit. Noire and Uni rush to the summit worried about what happened to K-Sha.
In the summit, they find K-Sha who created 4 clones of Noire while she waited. She reveals that she is a member of Gold Third. Noire tells her even if she kills Uni, it will not make her belong to K-Sha. K-Sha then asks what would make her belong to K-Sha. Noire tells her if she beats her in a fight, she will belong to K-Sha. Noire wants to snap her back to senses by battle. Noire and Uni defeat K-Sha.
K-Sha wonders why as she loved Noire so much. Noire gets angry at her for such a weak friendship. She only admired Noire, the two cannot smile, laugh, cry or get angry together. Noire wanted to be a close friend of K-Sha. K-Sha is a one of a kind friend, she can't be replaced with Uni and vice versa. After her rant, K-Sha returns to her senses. The two finally become close friends. Noire then asks her to try to accept Uni. She promises to try. K-Sha also wonders if Noire accepts her feelings and Noire responds with that she likes her. She wonder if her word choice was correct but K-Sha is happy with her response.
The girls return to the hotel room. K-Sha explains to Noire that she was a member of the Order. She born to kill but overtime in her mission yearned for a school girl life. She was given the mission to kill Noire but refuses. Since she would not kill Noire, the Order likely wants to eliminate her. The only way for them to have a chance at that is for them to destroy the Gold Crystal in the summit.
The girls rush to the summit and Noire promises K-Sha that she will return safely and says that she should wait and not pick up a gun for the sake of her normal life. Inside the summit, Uni tells Noire that she is overprotective about K-Sha. Noire agrees that maybe she is but it most certainly is not caused by the fact she understands how lonely K-Sha must feel.
At the top, she meets the Order Woman again. She tells her Anti-CPU robot to attack Noire and Uni. The two make short work of the robot and Noire brags. The Order Woman reveals its secret weapon a lethal virus mist. Uni pushes her sister out of the way and lies dying. The woman laughs but K-Sha silences her with a tranquilizer dart.
K-Sha tells Noire to keep Uni awake, in 5-10 minutes she will create an antidote. Uni is healed and Noire is incredibly but K-Sha suddenly snaps. Noire tells her she is irreplaceable but her words do not reach K-Sha. If she kills Uni, she can finally get Noire to look at her forever. Noire tells Uni to fight K-Sha, if they injure her beyond repair, Noire will care for her for the rest of her life but she wants K-Sha back to normal.
The two defeat K-Sha and she remembers she caused Noire trouble again. She destroys her Gold Crystal as it causes her to be used too often. She apologizes promises to never trouble Noire again. Noire tells her no, they are friends. Noire already has a friend that she gets into petty arguments over games with every week. That friend never apologizes so K-Sha is better than her in that way. With that the two stay friends.
In the end Noire and Uni decide to continue to hunt delusionary monsters. K-Sha decides to take her role as leader more seriously and decides to eliminate the remnants of the Order with their leader defeated. The girls part ways. Uni wonders if she should shake or swear that they would meet each other again. Noire says that is not necessary as she knows they will meet again.