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Characters / Steins;Gate

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The cast of Steins;Gate is not large. There are only the eight lab members, the Tennouji family that Okabe rents from and a few rarely appearing family members such as Luka's father. Names are in Japanese order (i.e. family name first, given name second).

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    Okabe Rintaro 
Voiced by: Mamoru Miyano (JP), J. Michael Tatum (EN)
Click to see Zero appearance. 

Lab member 001 and the protagonist, an 18-year-old first year college student and leader of the Future Gadget Laboratory. Around a decade ago, in order to help Mayuri through a difficult situation he began styling himself as "Hououin Kyouma", an evil mad scientist, exasperating others with his chuunibyou antics. Despite his goofiness, he's actually pretty intelligent and has an intuitive grasp of much of what they're doing. He retains his memories when the past changes with complete clarity, an ability he calls the Reading Steiner.

  • Adaptational Nice Guy: The anime softens his more abrasive traits considerably.
  • Adorkable: When he's not being a total ass, his overenthusiastic mannerisms can come off as this. Crops up more often as he grows fonder of Kurisu.
  • Alternate Universe Reed Richards Is Awesome: Inverted in the Faris ending/Omega timeline where instead of being a scientific genius, he is a friendless professional Rai-Net Access Battlers card player.
    • Subverted horribly in the Gamma timeline where he is physically fitter, richer and more disciplined but this is a result of him willingly joining SERN as a Rounder, spy and researcher. This version of him ultimately becomes a member of the Committee of 300, and despotic ruler of Japan in 2036 under the name Hououin Kyouma.
  • Always Save the Girl: When the choice between saving Mayuri or saving Kurisu comes up, he admits that he honestly doesn't care that the latter involves allowing the world to remain with SERN's dystopia. After making his choice, in the True Ending he's also completely unconcerned with the fact that the future he's heading towards results in the near extinction of the human race. He's not going to allow Mayuri to die to save billions of people he doesn't know. Although in the sequel this gets modified when he sees that future first hand making him understand how awful it is and that some of the people who die include his friends. After that he becomes more concerned with always saving everyone. Later deconstructed in The Movie, where he becomes so jaded by his experiences that he doesn't care whether he lives or dies, as long Mayuri and Kurisu are fine.
  • Ambiguously Bi: He only ever seems to be into girls, as he himself admitted, but it's suggested that he's also more interested in Luka than he'd be willing to admit. Usually, he'd try to brush these odd feelings off by reminding himself Luka is a boy and he doesn't swing that way, but looking at how hard he struggles to even think so in the first place does seem to imply a lot of things about Okabe's sexuality.
  • Amnesiac Lover: In the Faris ending, Okabe's meddling with time results in a world line where he knows none of his friends except for her, who he's been in a long-term relationship with. Of course, since Reading Steiner only lets him remember his experiences on the previous world line, he has no recollection of this. While this distresses Faris once she realizes he isn't play-acting as usual, they do agree to work towards starting a new relationship.
  • Awesome Mc Coolname: His 'true name' of Hououin Kyouma is supposed to be ridiculously cool, though the point is that anyone over fourteen would giggle to hear it. The characters forming it mean Phoenix Temple Madness of Truth.
  • Badass Labcoat: Deliberately attempts to invoke this trope with his wardrobe choices. Sometimes it even works. He's particularly thrilled when Kurisu starts wearing the one he bought for Daru that went unused.
  • Belligerent Sexual Tension: With Kurisu.
  • Beneath the Mask: As noted in Obfuscating Insanity below, Okabe tends to retreat behind his Mad Scientist persona when he's troubled, especially in front of Mayuri, but in Luka and Faris' routes he upsets them by acting more normal than usual. When he acts like the person they know, they're much happier and he's much less stressed out. Kurisu, in a different take, appreciates it most when he acts like Okabe Rintarou and will flat out ask him his opinion as Okabe and not Hououin, though the opinions are generally identical.
  • Big Brother Instinct: As Okabe admits early on, he basically adopted the Hououin Kyouma personality because he was worried about how flighty Mayuri is.
  • Break the Haughty: While a good person, Okabe has a tremendous amount of ego which bites him in his ass when after he creates a small time machine from a microwave with his group together and plans to reveal it to the whole world. SERN tracked them down in their apartment by hiring Rounders to do so, one of them, Moeka pretended to be one of Okabe's lab members as a mole and has them under the organization as their hostages with the exception of Mayuri whom she murders her in cold blood. Okabe escapes from their grasp and uses the time leap function of the machine to attempt to rescue Mayuri from her countless deaths which can't be averted since he's in the Alpha worldline. He finally learns from his mistakes as Suzuha reveals herself as John Titor points out the main cause of Mayuri's deaths and decided to undo all of the D-mails that he caused to save Mayuri but have to sacrifice Kurisu's life as well which however can be averted.
  • Break Them by Talking: In the final arc before the True End begins, Okabe has to undo the last D-mail, the one that Moeka sent. However, he doesn't know what mail he needs to send to do it. To get that information, he forces Moeka to break by telling her how blatantly she's been abandoned in a way she can't fully deny. Oddly enough, though, this actually ends up being better for her psychologically. Until she gets killed anyway, that is.
  • Catchphrase: "This is the choice of Stein's Gate!", "El Psy Congroo", among others.
  • Celibate Eccentric Genius: Okabe will have you know that he, like the great Sir Isaac Newton, is a virgin entirely by choice and not at all out of social awkwardness or inexperience.
  • Change the Uncomfortable Subject: This is a character tic of his. Whenever confronted with an awkward or difficult question, Okabe would play up his Kyouma personality, or segue into a different topic to talk his way out of the problem. It becomes less effective as the series goes on and Kurisu and Daru start wising up to his antics.
  • Character Development: He starts out a somewhat Tsundere dork, but around the 13th he has to start growing up and becomes by turns rather clinical, depressed and frantic. By the very end he's found a happy (well, sort of) medium between these two points.
  • Chick Magnet: Basically every female Labmem sans Suzuha is attracted to him in one way or another, and Luka as well under specific circumstances. While most of these romantic options are explored in the original game, Moeka's attraction to Okabe only becomes apparent in the Hiyoku Renri no Darling spin-off, where they become an official couple at the conclusion of her route.
  • Childhood Friends: He has been close friends with Mayuri since childhood. Mayuri is actually the one responsible for his Mad Scientist schtick: When she was depressed after the death of her grandmother and seemed to be wasting away, Okabe began to act cartoonishly and treat her as his 'hostage' to make her move on. Later in the story, when forced to choose between the woman he loves and his little sister figure, he undergoes a sort of breakdown and is eventually compelled to save Mayuri anyway.
  • Chuunibyou: Styles himself as a great and evil mad scientist fighting against a vague but presumably evil Organization. Mayuri isn't his friend, she's his hostage. And absolutely everything must be named in a foreign language or it just wouldn't feel right. His inner monologue admits that it's all a load of crap, but whatever, he's having fun. It is eventually revealed that he isn't keeping up the charade for his own sake, but rather because it entertains Mayuri and keeps her mind off her immense grief over the passing of her grandmother. In chapter 10, when he finds Mayuri at her grandmother's grave, Okabe remembers that years ago when her grandmother passed away, she was standing in front of her grave grieving most of the time and unable to move on which the young Okabe decides to create his second personality inspired from a TV show about a mad scientist taking a hostage to help Mayuri cope with her death out of strong bonds as childhood friends. also, the Organization he is fighting against? It is real, in the form of CERN.
  • Cold-Blooded Torture: Both SERN, in the Alpha world line, and Stratfor, in the Beta world line, subject him to this. Stratfor's torture actually puts him in a coma for 11 years, hence his "death" in 2025. Poor guy just can't catch a break.
  • Conspiracy Theorist: He believes that there is a mysterious "Organization" that rules over humanity from the shadows, and that he is one of the few fighting against it. Naturally, over the course of the story he happens to stumble upon an actual global conspiracy (by CERN, the European Research insititute that built the Large Hadron Collider to produce micro black holes and use Time Travel to enslave the rest of the human race).
  • Crotch-Grab Sex Check: How he confirms Luka has become a girl after the latter uses a D-mail to be born as a girl. He does it again after entering into a new Delta world line where he and Luka were a couple. Kurisu ends up clocking him over the head with a large book both times.
  • Cruel and Unusual Death: In one ending, he is tortured to death by SERN operatives in 2025.
  • A Date with Rosie Palms: In the VN, he was tempted to do so after accidentaly seeing Mayuri and Kurisu in the shower.
  • Declaration of Protection: Swore to keep Mayuri safe and happy.
  • Despair Event Horizon: Breaks down crying after countless failed time-leaps in order to save Mayuri and is in such a state of desperation that he actually attempts suicide. Of course, You Can't Fight Fate, and Mayuri's relief after saving him and finally being 'useful' only sends him further into despair.
  • Determinator: He keeps putting himself through hell to save Mayuri, made worse by the fact that all the damage he does is known only by him. He keeps it together until he has to sacrifice Kurisu to save Mayuri at which he grinds to a halt and completes his breakdown.
    • And then his future self eventually jumps back from that, using his failure to save Kurisu as motivation to perfect the time machine so that his past self could save her.
  • Do Not Call Me "Paul": "Call me Hououin Kyouma!"
  • Evil Laugh: As befitting a Mad Scientist, he has a particularly loud evil laugh.
  • Expy: Dub-only, but J Michael Tatum's performance reinterprets his Chuunibyou antics and speech patterns to the point that he's basically a human version of the Doctor.
  • Faking the Dead: In Steins;Gate 0, 2036 Daru reveals to Okabe that he tricked the world into believing Okabe died in 2025 and hid his body until he woke up or could be woken up.
  • Forceful Kiss: In order to stop Moeka from screaming for help he forcefully kisses her until she gives up.
  • Freak Out!: After the 13th, his personality takes a sharp and unhealthy turn for the worse as he struggles to avert Mayuri's death. After everything is said and done, he doesn't quite go back to normal, but he gets close. Depending on your ending, that is.
  • Future Badass: In the future Alpha timeline, he leads an international terrorist group against SERN. In the Beta timeline, he creates an advanced version of the original Alpha timeline time machine.
  • The Gadfly: He loves picking on Kurisu, usually by using nicknames that he knows she hates.
  • Geek Physique: Okabe is scrawny and unathletic. Even climbing up a few staircases is enough to exhaust him.
  • The Gift: He has an ability he calls the Reading Steiner that allows him to have continuous memories even when the past changes. While it's not entirely exclusive to him, it's much stronger for him than anyone else. It's implied that it came about as a result of a childhood fever that nearly killed him.
  • Giver of Lame Names: It's noted that his naming sense is terrible, to the point the others flat out veto his proposed names for what eventually becomes the D-Mail.
  • A God Am I: Played straight in Suzuha's ending, and he often refers to his Sadistic Choices as playing God. Whenever he gives up, he usually mentions that he's tired of acting like God.
  • Good Is Not Soft: He might be a purported mad scientist but he does consider his labmemes, his true friends however when Moeka was working for SERN all along, she murders Mayuri in cold blood in front of him which he has to avert by time leaping back in time and undo all of the D-mails he sent which Moeka also done. As he confronts her at her apartment, he didn't hesitate to give her a right hook punch to her face not only to let go of her phone she's gripping to undo the d-mail for her but in retaliation for playing the role in Mayuri's death.
  • Gratuitous English:
    • Styles himself a "Mad Scientist", spoken as is, following the Steins;Gate's choice. Kurisu notes in utter disbelief that the latter is actually half German. And on that note, one shouldn't forget "Christina", "Celeb Seventeen", and the myriad of nicknames he cooked up for Kurisu throughout the series.
    • On several occasions, mostly in the anime, where he's forced to speak English to foreigners. His "English" is so hilariously broken that the listener either ends up replying in Japanese anyway, or taking his "Mad Scientist" spiel too seriously and having him detained.
  • Gratuitous Foreign Language: His other habit is to come up with Nordic mythology-themed names for his Operations at the drop of a hat. Though seemingly ridiculous and random at first, some of them do make sense in hindsight, however.
  • The Heckler: Attends Dr. Nakabachi's and Kurisu's speeches at the beginning of the story and upon hearing something he doesn't like instantly begins heckling them. The difference between the two is obvious: His objections to the former are completely valid and is nearly escorted out before Kurisu pulls him aside, and the latter knows exactly what she's talking about, stops someone from removing him and turns it back around on him to make him look like a complete fool.
  • The Hero: He is the main character, after all.
  • Heroes Want Redheads: In the anime, he's the main hero and he falls for the redheaded Kurisu.
  • Heroic BSoD: He spends most of Steins;Gate 0 in this state.
  • Historical Villain Upgrade: In universe: In one future timeline he's known as a terrorist against the SERN regime. It's even true, but the terrorists are basically the good guys.
  • Honorary Uncle: In the Beta timeline, Suzuha calls him Uncle since this Suzuha did meet him in the future, along with her father Daru.
  • Hypocritical Humor:
    • He complains about how everyone calls him Okabe or Okarin instead of Hououin Kyouma like he'd prefer, but there's essentially nobody he calls by their proper names. He calls Kurisu in particular about half a dozen things that all irritate her rather than her actual name.
    • After Okabe begins heckling her during the seminar, she quickly recovers and then addresses all stupid questions and reasons why time travel won't work to him directly. He thinks it's really rude and gets defensive.
    • He's rather annoyed by the Viral Attackers "Black Peacock" shtick, despite his own delusions.
  • I Let Gwen Stacy Die: Steins;Gate 0 has Okabe mourning and blaming himself for Kurisu's death in the Beta timeline, especially after his attempt to save her resulted in him killing her by accident.
  • Improbably High I.Q.: Okabe claims to have an IQ of a possible but very unlikely 170 - whether he's just making it up or not is up for debate.
  • Innocently Insensitive:
    • He's emotionally dense and can piss people off even when he's not trying to, such as picking at Kurisu's statement about how she hasn't seen her father in years.
    • If you skip one of Mayuri’s phone calls, he goes and talks to Moeka instead. Irritated at her sending him mails instead of talking even when face to face, he finally realizes that she’s too socially awkward to speak, though he chalks it up to being scared of a super mad scientist specifically.
  • In-Series Nickname: Refers to himself as "Hououin Kyouma", though the only one to play along seriously is Faris. Mayuri and Daru call him "Okarin".
  • Insistent Terminology: No matter the situation, no matter how much it is tweaked, the name of the PhoneWave (a cellphone connected to a microwave that can send mails to the past) remains "subject to change" to the end.
  • Jerk with a Heart of Gold: Very poor in personal space and slightly rude. He likes to act hammy and 'evil' and bickers constantly with Kurisu and Faris, though the latter doesn't seem aware that that's how he views the situation. However, he's actually pretty concerned about Mayuri and Kurisu and even forgives Moeka for murdering Mayuri after he understands the situation a little better.
  • Lab Coat Of Science And Medicine: The uniform reserved for those who devote their lives to SCIENCE! He's thrilled when Kurisu begins using the other labcoat he got: Daru refuses to wear it.
  • Large Ham: When he's acting out his Hououin Kyouma persona he tends to be very loud and theatrical. When Okabe himself shines through, he's inclined towards gloominess and is actually fairly mellow.
  • Last-Name Basis: His given name, Rintarou, is almost never spoken by anyone. Daru and Mayuri call him Okarin and Faris calls him Kyouma, but not even the impolite Kurisu uses his first name. In a drama CD that takes place on a gamma worldline, Faris calls him Rintarou.
  • Let Them Die Happy: In Mayuri and Kurisu's ending he forgives Moeka so that she can die in peace. Even after this is inevitably undone by the course of the plot, he still keeps his word. She's even invited to the club in the epilogue.
  • Like Brother and Sister: He views Mayuri as a little sister figure and "precious thing to protect," though Mayuri herself seems to hover somewhere between utter devotion and a crush.
  • Living Emotional Crutch: Mayuri is very dependent on Okabe after the death of her grandmother, but is beginning to feel like she's a burden on him. She also fails to realize that she's genuinely important to him and not just a thing to be taken care of. While this is mostly a worry of Mayuri's, very early on it does occur to him that perhaps the mad scientist game has kept her from growing up. Not that he'd say it in those terms, though.
  • Loophole Abuse: The most notable example is him deceiving his past self using a clever loophole devised by his future self.
  • Love Epiphany: When Kurisu encourages him to delete the first D-mail even if that means she has to die, Okabe realizes he is in love with Kurisu.
  • Mad Scientist: He views himself as a great mad scientist, the scope of which is basically renting out a tiny apartment, calling it a lab and using it as a clubroom where he occasionally builds weird gadgets.
  • Mistaken for Romance: A lot of people think he's dating Mayuri, but Okabe will correct them. She's his little sister and something to protect, not his girlfriend.
  • Mourning Clothes: He spends most of Steins;Gate 0 dressed in black as he's still mourning Kurisu's death.
  • Nerds Are Virgins: Nor has he had a girlfriend in his life. He may have lost it in Faris's ending, though.
  • Nice Job Breaking It, Hero!:
    • Allowing others to make D-mails causes Mayuri's repeated deaths.
    • The True Ending reveals that his arguing with Kurisu causes her father to snap and murder her.
  • The Nicknamer: Enjoys giving other people nicknames based on their deeds, except Mayuri, who already coined her own nickname "Mayushii☆" and Faris, who doesn't use her real name anyway.
    • Daru's real name is Itaru, though it's rarely mentioned apart from when the origin of 'John Titor' is discussed to be based upon a multilingual pun by translating his name into English.
    • Kurisu gets the most nicknames: The Zombie for apparently coming back to life, Christina just to annoy her by getting her name almost right, Assistant to inflate his own ego as a Mad Scientist and a handful of others like Celeb Seventeen. Eventually he admits that he's too nervous to actually use her name.
    • Moeka is Shining Finger thanks to her ridiculous typing speed.
    • Luka is Lukako, which is putting a feminine ending on an ambiguous name that belongs to a feminine boy.
    • Suzuha becomes the Working Warrior after she irritably tells Mr. Braun that she's a warrior, apparently unaware that this makes her stand out juuuust a little.
    • Mr. Braun is itself yet another nickname to the landlord, Tennouji. His daughter Nae becomes Sister Braun. Nae doesn't really get why Okabe calls her father that. He also calls her Chipmunk sometimes.
  • No Indoor Voice: HOUOUIN KYOUMA!
  • No Social Skills: He's rather oblivious to how people are feeling a lot of the time, even when the spell it out for him. When he does notice tension he generally tries and fails to defuse it by going into his Hououin Kyouma shtick.
  • Not So Stoic: Normally, Okabe would put up a calm and cool exterior, though if panicked or placed in an awkward situation he would start screaming in a very uncharacteristic high-pitched voice.
  • Obfuscating Insanity: When the plot takes a turn for the depressing, Okabe occasionally hides his true thoughts, goals and emotions by using his mad scientist schtick.
  • Oblivious to Love: He's pretty dense when it comes to others feelings and love isn't an exception. Faris and Luka are unable to get through to him without being really blunt about it. The latter came as a particular shock, causing quite a crash.
  • Official Couple: After a lot of Belligerent Sexual Tension and Will They or Won't They?, there's finally a mutual acknowledgment near the end before Kurisu dies.
  • O.O.C. Is Serious Business: When he, for once, calls Kurisu by her real name, she immediately picks up on the fact that something bad is happening.
    • Conversely, during Steins;Gate 0, because he's used the Kyouma personality so long some characters have trouble taking him seriously when he's actually trying to be serious.
  • Perma-Stubble: Rather than looking pretty, he has a rather unshaven, sloppy appearance emphasized by his perpetual scraggly face.
  • Phrase Catcher: "You're the last person I want to hear that from!"
  • Platonic Life-Partners: With Mayuri. They have known each other nearly all their lives, are like family to each other and one of Okabe's main motivations is to protect her at all costs. This comes to a head when Okabe finds himself being forced to choose whether to save his little sister figure or his love interest.
  • Politeness Judo: Not wanting to carry a heavy computer back to the clubroom and hearing Kurisu's refusal to help, he gestures to Luka to get him to offer to help. Once Luka does, he politely refuses and says he'll do it all on his own while Luka repeats his offer until Kurisu hesitantly offers to help out too, at which point Okabe instantly agrees, much to her surprise and irritation.
  • Properly Paranoid:
    • Though deep down he's not serious, eventually he really is being monitored by an evil organization. One that assassinates his best friend followed by kidnapping and enslaving his love interest, forcing her to work on time travel for them.
    • At the beginning, Okabe wonders if the woman trying to get people back to the conference is trying to cover up the apparent satellite. It’s beta line Suzuha, though this doesn’t become clear until much later. Okabe himself is in there with her.
  • Proud to Be a Geek: Okabe makes no effort to hide his questionable hobbies and passion for bizarre scientific endeavors. In fact, he plays them up in an effort to hide his true, socially awkward self.
  • Meaningful Name / Punny Name: Very early in the visual novel, Okabe mentions that he dislikes his real name, because it sounds like 'that elf boy's blue pipe thing', referring to the famous Ocarina of Time. What better way to signal to the audience that this is a story about time travel, than by naming the protagonist after a famous device used for such?
  • Rebel Leader: In the future Alpha timeline, Okabe was the one who founded La Résistance against SERN.
  • Ret Gone: In the movie, the side effects of his time traveling begin to catch up with him.
  • Ripple Effect-Proof Memory: His "Reading Steiner" ability gives him a continuity of consciousness whenever the world is changed, but this means he has no idea how the current world works after changing the timeline. Thus, from the perspective of everyone else, Okabe just seems to spontaneously panic over the supposed disappearance of people that were never there or forgetting that Luka is and always was a girl. These tend not to go well for him, especially in the case regarding Luka.
  • Sadistic Choice: Fate gives him one towards the end of the series, when he's forced to choose between condemning Kurisu or Mayuri to death. Thankfully, a third option presents itself, but only after he's been forced to make the choice once.
  • Sanity Slippage: In the ending for Amane Suzuha his mind starts to run ragged from the sheer repetition and only Amane herself agreeing on a way out helps him. He goes from rescuing Daru from a truck to simply observing Daru nearly get run over with an intense level of indifference to contemplating incredible abuses with just a few repetitions, which horrifies him.
  • Self-Serving Memory
    • After he and Kurisu finishing lugging a heavy computer back to the lab, he inwardly complains about how often she asked to take breaks and then out loud complains about her, after which she retorts that he asked to rest five times himself.
    • More seriously, when Moeka first assaults the lab and kills Mayuri he notices that she's upset, hesitant and shaking. As time goes on he slowly forgets this until in chapter 8 he remembers her being completely calm. Moeka is never like that so presumably he's just trying to vilify her in his head in case he has to kill her.
  • She Is Not My Girlfriend: He has this with Kurisu, mostly from the Lab Members, who just assume that they have a thing for each other. Both Okabe and Kurisu are in denial about it.
  • Shoot the Dog: When having to fix events so that Mayuri doesn't die he has to undo the happiness these events brought. Usually right in front of the person in question, who know what he's doing. He has to sacrifice Amane's peace of mind and happiness, Faris' father, and Luka's chance to live as the gender he identifies with.
  • Shrouded in Myth: In the future, Okabe is a legendary terrorist, but apparently not much about him is known. This leads to Suzuha taking Okabe's nonsense utterly seriously in the present since she doesn't know that Okabe was actually just some dorky university student in 2010. It all sounds about right to her, after all.
  • Smarter Than You Look: He seems like an idiot, especially early on, but as the story progresses it turns out he has a really intuitive way of understanding things and finds it easy to explain them in simple terms. In the present, he and Kurisu handle the bulk of the theoretical work while Daru handles tech stuff. In the future, he even invents a full time machine and a device to measure temporal deviations. Maybe his claims about his IQ were true after all.
  • Stable Time Loop: His Hououin Kyouma persona is created through one in the movie. Kurisu told a young Okabe about Hououin Kyouma, and that story inspired Okabe.
  • Star-Crossed Lovers: With Kurisu. In one timeline she dies just after meeting him and in the other they end up on opposing sides of global conflict. The only way for it to work is to find the Steins Gate choice and remove both bad timelines from the equation.
  • Stepford Smiler: In the second half of the story he often hides what he's feeling behind his normal Large Ham attitude.
  • Suspiciously Specific Denial: He quietly leaves the rooftop as ordered but definitely not because he was scared or anything.
  • This Is for Emphasis, Bitch!: Loudly and melodramatically screams out bitch after accusing Kurisu of various vague crimes. Of course, it sounds absolutely ridiculous and unnatural.
  • Trademark Favorite Drink: He considers Dr. Pepper to be the drink of science!
  • A Tragedy of Impulsiveness: The opening of the story is a Flash Forward of Okabe cursing himself out for repeatedly acting without thinking with something as dangerous as time travel. He keeps sending D-Mails back even after the first big change caused by Moeka makes him realize that the world can change in massive and unexpected ways from the smallest of actions. After this, he allows the past to be changed three more times, each time vastly altering who is around him and how close he is to ensuring Suzuha's Bad Future.
  • Troll: Occasionally pulls stunts that freak out the other Lab Members just for laughs, usually with Kurisu as the main target. Special mention goes to the Drama CD where he pretends to have used the D-Mail to make himself a completely normal person.
  • Tsundere: He hides behind his eccentricities when he's being nice to people because he's kind of awkward. He's not very subtle about it either. Even his internal monologue refuses to admit that he likes anyone. For example, the only time he notes that Kurisu is attractive is their first meeting when he's baffled as to why she's even talking to him. Also, his heart is beating fast from the sense of danger and no other reason, and that's a fact.
  • Unwitting Instigator of Doom: It is because of his and Daru's accidental invention of a time machine in the form of the PhoneWave (name subject to change), that SERN (and later Stratfor) started targeting him and the Labmems for it, bringing about a multi-party conflict that gradually snowballs into World War 3 and eventually a Bad Future.
  • Weirdness Magnet: Lampshaded by many characters in both the original visual novel and 0. Okabe with his own wacky personality seems to have a knack for attracting equally-unusual characters to his lab, from perverted Otaku hackers, to ditzy airheads, to a Chuunibyou Cat Girl Ojou, and so on.
  • What You Are in the Dark:
    • Kurisu suggests that if Mayuri's life is at stake and time travel will revert any damages he causes, he could simply physically force Rukako to tell him her mother's old pager number or kill Moeka to take her phone. He refuses. This is one thing that sets him apart from Dr. Nakabachi, who was intending to undo the murder of his daughter with time travel if it came to it since he figured it wouldn't really matter in the larger scheme of things.
    • Brought to a head in Suzuha's ending, where his thoughts get very dark, knowing that there's no way he can be punished for his crimes. Despite going through massive Sanity Slippage (implied to partially damage from the Time Loop Machine) he never actually does anything wrong.
  • Would Hit a Girl: Despite his initial reluctance, when he deems it necessary he attacks Moeka, pins her and nearly kills her in order to take her phone and try to save Mayuri. However, eventually he's forced to admit that he needs to solve this problem with diplomacy rather than force and decides to break her by telling her she'll commit suicide in a few days because she thinks FB abandoned her.
  • Your Days Are Numbered: In the Alpha and Beta lines he's destined to die in 2025, not a day earlier or later. Until then he can't be killed, however, and it's implied that he can't be successfully detained for long in the Alpha line. If he were to be captured before his time, he couldn't fulfill his destiny of being an infamous terrorist. Eventually, he escapes both lines and manages to reach the Steins;Gate choice to reach a third world where SERN does not take over, there is no nuclear war and Kurisu survives. His ultimate fate in this line is unknown, but this will at least be a far less dangerous world for him than the other two.

    Makise Kurisu
Voiced by: Asami Imai (JP), Trina Nishimura (EN)

Kurisu is an 18-year-old Teen Genius apparently killed at the very beginning of the story, only to appear both alive and confused at Okabe's assertion that she's supposed to be dead. She becomes the fourth and final of the primary lab members and does a lot of the work on the time machine. Despite her excellent skills in physics, she's actually a neuroscientist. More than that, she's also a Closet Geek and noted to be quite the blatant Tsundere.

  • A-Cup Angst: When Mayuri tries consoling the retconned-into-female Lukako about chest size not mattering, Kurisu does a Spit Take. She also gets upset when Faris tells her her uniform won't fit Kurisu. She instantly assumes it's about the chest size, but Faris just meant her height.
  • Adaptation Dye-Job: Kurisu's hair is brown in the original visual novel, but has red hair in the anime.
  • Adaptational Badass: She's one of the 2 guest characters in the 2D fighting game Phantom Breaker, and is the only normal human but she can fight an even match against superpowered adversaries using lab gadgets. It should be noted that she's among the only 2 characters who have 2 supers.
  • Agent Scully: Initially, Kurisu completely denies any possibility that time machines could exist. Her tune quickly changes when she ends up helping Okabe build one.
  • Amnesiac Lover: In the True Ending, Okabe has saved Mayuri, Kurisu and the future, but in exchange, she doesn't remember him. However, fragments of her memories survive, and she feels compelled to track him down anyway, which is expanded upon in the bonus episode for the anime. In the movie, Kurisu successfully falls in love with Okabe all over again.
  • Aw, Look! They Really Do Love Each Other: Kurisu and Okabe frequently trade insults, but they ultimately enjoy each other's company.
  • Back from the Dead: The first plot point of the series begins when Okabe sees her lying in a pool of blood, calls Daru about it and then ends up in a world where for some reason she's perfectly okay. When he returns to his original world, she's dead, but then her death gets a Cosmic Retcon and she's back again.
  • Bad Liar: See Suspiciously Specific Denial below.
  • Belligerent Sexual Tension: With Okabe.
  • Berserk Button: When Faris mentions in the Alpha Drama CD that her maid outfits might not fit Kurisu, Kurisu gets awfully touchy.
    Faris: Ah...! But... [my] clothes might not fit on you, nyan.
    Kurisu: By that... do you mean my breasts? MY BREASTS, RIGHT?!
    Faris: Your height, nya.
    Kurisu: You... forget I said that.
  • Cannot Spit It Out: While it's obvious that she and Okabe are unwilling to admit they care about each other as more than friends, they seem to be at least somewhat aware of the other's feelings on the matter. During the My Darling is an Idiot! scenario it is implied that they are both afraid to cross that line since they don't know if they can be just friends again if it doesn't work out.
  • Can't Hold Her Liquor: In the movie, she got drunk off a can of beer.
  • Catchphrase: "Calm down."
  • Character Name Alias: While Okabe uses his Hououin Kyouma identity on @channel and Amane Suzuha uses John Titor based on wordplay and the name of a third party, Kurisu uses KuriGohan and Kamehameha in the same threads. Smooth.
  • Clingy Jealous Girl: Played for Laughs in a Drama CD, though she does have her moments in the actual game as well. She is notably irritated by the fact that Okabe talks to Mayuri in a straightforward manner, but only uses theatrics for her.
  • Closet Geek: Daru and Okabe recognize her quickly as a @channeler despite her frequent denials. She tries to hide it, but she keeps slipping up and dropping obvious memes into her speech.
  • The Confidant: As things get more and more out of hand, Kurisu becomes one of the few people Okabe can confide to for help. Despite lacking Okabe's memories, she does her best to understand his situation provide whatever aid she can. In the movie, she lampshades how he could never have gotten far without her and the others.
  • Cordon Bleugh Chef: Kurisu enjoys making salad. Grapefruit salad. With some natto and ground beef thrown into the mix.
    Kurisu: Mixing stuff in makes it tasty. Grapefruit's sourness makes it a perfect match for anything.
    Okabe: No, it doesn't!
    Kurisu: Does too. You should try it.
    Okabe: There's a salad right here! One that's already made! And it's 50% off—
    Kurisu: —Ready-made stuff's no fun.
  • Covert Pervert: Despite accusing Okabe and Daru of this constantly, she herself tends to be the first to get to a sexual conclusion on things, and is implied to be into BL.
  • Cry Cute: After Okabe yells at her for calling him by his real name, Kurisu acts fairly defiant at the perceived anger. When she realizes he's just being his usually goofy self, she's so relieved after the fright that she tears up a little. Despite her Suspiciously Specific Denial, he seems baffled as to why she's sniffling.
  • Damsel in Distress: In the finale, Okabe's final mission is to save Kurisu from dying in the Beta timeline to prevent a World War III and create the Steins;Gate timeline.
  • Date Peepers: During Okabe's date with Luka, ostensibly to keep it running smoothly.
  • Dead Person Impersonation: Seen in the movie when she attempts to personify Okabe's Hououin Kyouma to fill the spot that everyone keeps remembering. Her impersonation is spot on. This is actually an important detail, as Kurisu would later be revealed to be the one who technically created the "Hououin Kyouma" identity when she time travels to inspire a young Okabe to become a mad scientist who could protect Mayuri.
  • Deadpan Snarker: She's never the last to send quips at Okabe whenever he's spewing out bullshit. Considering her personality (and his), the temptation must be strong indeed.
  • Death Faked for You: In the finale, Okabe saves Kurisu from her death by getting stabbed in her stead and leaving an unconscious Kurisu in a pool of his own blood in order to trick his past self into believing that he saw a "dead" Kurisu. This allows the creation of the Steins;Gate timeline, in which Kurisu can be alive and World War III is prevented.
  • Deuteragonist: The second main character.
  • Eating the Eye Candy: During one of the Somei Eichi no Cognitive Computing shorts, she is literally left breathless after looking at the outfits the machine suggested for Okabe.
  • Fiery Redhead: In the anime, she has red hair and quite the quick temper when dealing with Okabe.
  • Friendless Background: Focused exclusively on the sciences at a young age, eschewing just about everything else.
  • Genius Sweet Tooth: Likes pudding. In the anime, she bonds with Okabe over a shared love of Dk. Pepper.
  • Guilty Pleasure: Posting on 2channel, dropping internet slang, just to name a few. Often becomes embarrassed when Daru and Okarin point them out.
  • Heroic BSoD: In the movie, an attempt to help a younger Okabe backfires when she trips in the rain and causes him to be hit by a a truck. Kurisu makes it back to the Steins Gate timeline unharmed, but her morale and emotions are wrecked.
  • The Heroine: Downplayed in most of the series. She might be the female lead, but Okabe is the one doing the traditional heroic actions. She truly assumes the role in the movie, where Okabe disappears from the timeline and it's her turn to save him.
  • Historical Hero Upgrade: In universe: In one future timeline she's referred to as the mother of time travel, but this is propaganda. Plus, she was forced into it after SERN raided the lab, killed Mayuri and captured her.
  • Hypercompetent Sidekick: While Okabe is certainly intelligent enough to keep up, Kurisu's knowledge of physics and grasp of the time machine mechanics are probably Okabe's most valuable assets during each of his time-leaps.
  • In-Series Nickname: Multiple nicknames used by Okabe, mainly "Christina". There's also "The Zombie" or simply "Assistant". There was also the short lived "Celebrity 17" or "Celeb-17".
  • In Vino Veritas: During the movie, she gets drunk off of a can of beer and becomes a lot more open about her feelings with Okabe, cuddling with him and rubbing against his cheeks.
  • Intelligence Equals Isolation: Prior to knowing Okabe & the lab members she doesn't seem to have had any friends. Like her father, her coworkers are jealous of her accomplishments at her young age. In one fairly comical scene between herself, Daru, and Okabe, she unintentionally reveals she's a virgin and has never been on a date.
  • Interrupted Declaration of Love:
    • She rushes back to the lab to announce her feelings to Okabe, but mere seconds prior, he had reversed the first D-mail. She's warped from the room and subsequently killed in the first timeline.
    • It happens again in the movie. The only difference is that this time Okabe is the one to vanish from the room as he is Ret Goned out of the timeline. She's even interrupted in almost the same spot in the sentence.
  • Jerk with a Heart of Gold: She can be very rude and abrasive, mostly towards Okabe because of his eccentricity and Daru because of his perverted remarks. Despite that, she can be surprisingly friendly with Mayuri and anyone else as long as you don't use inappropriate actions and constantly engage in petty arguments. Also, she proves to be Okabe's most reliable and loyal companion by using her remarkable intelligence to help him again and again.
  • Lab Coat Of Science And Medicine: A preference for which Okabe is ecstatic to discover.
  • Lame Pun Reaction
    Okabe: What do you mean 'oh god'? You trying to say Kurisu-chan is a Christian?
    Inner Monologue: When I say that, Kurisu looks at me with disdain
    Okabe: ...I regret saying it too.
  • Last Kiss: Before Okabe undoes the final alteration to the timeline he realizes that Kurisu won't survive it and that he's fallen in love with her. After talking to her about it and explaining everything, she gives him a kiss goodbye, accepting her fate.
  • Lethal Chef: Her apple pie is considered a lethal weapon.
  • The Lost Lenore: Okabe spends the majority of Steins;Gate 0 mourning Kurisu's death in the Beta timeline and trying to get his life back on track after his failed attempt to save her.
  • Meaningful Name: Okabe calls her "Christina" insistently; that the name derives from "Christ" is a clue to the final problem that she'll face. Having delayed Mayuri's death by a single day with each D-Mail he's removed from history, Okabe realizes and explains to Kurisu that the next logical step and possibly the way by which to save Mayuri completely is to delete the very first D-Mail. This D-Mail altered World Lines initially, making it so Okabe could live in a World Line where Kurisu didn't die; so, in order to save Mayuri, he must undo that D-Mail, consequentially killing Kurisu again. Having told this to her and she having spent time understanding the situation fully, Kurisu insists and eventually demands that Okabe allow the D-Mail that altered the World Line to be deleted. Once he deletes it, Kurisu exists only in the original World Line and before she is stabbed to death by an unknown assailant. Okabe, determined to save her, travels back to the moment of her death in an attempt to prevent it: in doing so, he ensures it by being the one to stab her to death. Failing the first attempt, he returns to reattempt to save her while allowing his original self to believe that she died, and this time he succeeds. So a character referred to as "Christina" by Okabe is sentenced to death by him, killed by him, and brought back to life as Okabe ensures his initial self believes she's dead - all as a means to save her and Mayuri, and the world from World War III.
  • Nerds Are Sexy: Theoretical physics can be a very sexy thing, to Okabe if no one else.
  • Nerds Are Virgins: And what's wrong with that!?
  • Nice Job Breaking It, Hero!: In the movie, she gets young Okabe killed while trying to save him. Thankfully, this is retconned in-universe.
  • Official Couple: After a lot of Belligerent Sexual Tension and Will They or Won't They?, there's finally a mutual acknowledgment near the end before Kurisu dies.
  • Omnidisciplinary Scientist: Is a neuroscientist, but is apparently well-versed enough in theoretical physics to conceptualize and build a time machine since she also studied theoretical physics to impress her father.
  • Posthumous Character: Sort of, in Steins;Gate 0. The real Kurisu was killed in the Beta timeline; she only appears alive when Okabe is briefly teleported back to the Alpha timeline. Otherwise, she appears in the form of a Benevolent A.I. throughout the rest of the game.
  • Precision F-Strike: Loudly says 'motherfucker!' to Okabe in the VN after he makes a choice to save Mayuri and Kurisu if you are on the right path to either her ending or the true ending which can be done by setting up one of the ending's flags.
  • Present Absence: Steins;Gate 0 takes place in the Beta timeline where Kurisu was killed. However, her presence remains very much felt in the story through Okabe's mourning of her and people trying to get their hands on Kurisu's memories forms a good part of the plot.
  • Protagonist: She plays this role for the movie.
  • Red Herring Mole: Thanks to her role in the future Suzuha believes her to be SERN's spy, leading viewers to the same suspicion until Moeka reveals her true colors.
  • Sacrificed Basic Skill for Awesome Training: During school, she focused entirely on mathematics to the exclusion of everything else. The only one that really comes up, though, is that she's not very well socialized.
  • Sadist: She briefly adopts this persona during her short stint as a maid for MayQueen Nyan-Nyan in the Hiyoku Renri no Darling spin-off, and manages to attract quite a sizable fanbase who has the same Geeky Turn-On as Daru.
  • Sarcastic Devotee: Frequently exasperated with Okabe's antics and wonders why the rest of the lab even follows him. At the end of the day, she's incredibly loyal and helpful to him.
  • The Scapegoat: In the future, she's known as the mother of time travel. SERN values her for this, but groups that oppose this aren't happy at all. In truth she was a captive forced to research time travel, but because Amane doesn't know this she really hates Kurisu and assumes she's a spy.
  • She Knows Too Much: It's implied that she's executed by SERN after completing their time travel device.
  • Shipper on Deck: Oh yes. Despite how she vehemently tries to hide her true fetish, Kurisu ships Okabe with both Daru and Luka on many occasions, the latter being more common. In the Delta worldline where a male Luka and Okabe became a couple, she doesn't even bother trying to hide her giddy excitement at the prospect of them going out together, which drives the latter up the wall.
  • Ship Tease: She gets a lot of Tsundere moments towards Okabe and is even less subtle during her texts. She also basically ends up on a date with Okabe when they're both wondering how to settle his actual upcoming date with Rukako.
  • Smug Smiler: After Okabe annoys her with his heckling, she addresses all stupid questions and ideas as though they came from Okabe throughout the lecture. When she sees him surprised by something she said, she smirks. When Okabe sees her give a genuine smile near the end of the game he almost laughs at how little it suits her.
  • Star-Crossed Lovers: A relationship with Okabe is next to impossible since in one timeline she dies just after meeting him and in the other they end up on opposing sides of global conflict. The only way for it to work is to find the Steins Gate choice and remove both bad timelines from the equation.
  • Straight Man: She plays this to the other three members' antics. And would almost be convincing in the role if she didn't inadvertantly pepper her retorts with internet memes.
  • Suspiciously Specific Denial: Combined with Bad Liar. While she tries very hard to hide her Covert Pervert status, every now and then Okabe and Daru would come to suspect her of dabbling in such things as BL, or going merchandise-hunting at ComiMa in secret. It takes very little effort for Kurisu to spill her guts on her own.
  • Teen Genius: From an early age she studied math and science like crazy at the expense of everything else, which has left her a more respected scientist than her father even though she's seventeen when the story starts.
  • Textile Work Is Feminine: In the movie, she sews the sleeve of Okabe's lab coat and gives him a spare, while denying that she bought the spare lab coat for him.
  • Tights Under Shorts: She wears black tights under her shorts.
  • Trademark Favorite Food: She's frequently seen eating cups of pudding, and complains with Okabe eats one of hers. She also bonds with Okabe over a shared love of Dk. Pepper.
  • Trust Password: The first time she gets Okabe to open up about time travel, she tells him that it'll be easy to get her to believe it again when he goes back in time. Turns out she doesn't! Luckily, she told him what she was looking for most at the moment was My Fork, something that both highly embarrasses her and finally convinces her.
  • Tsundere: Lampshaded time and time again. She's a highly stereotypical tsundere despite her protests and despite the fact that she really ought to know exactly what characteristics to avoid. She tends to be grumpy and sour to Okabe, but she's also always there to help and shows genuine worry about him.
  • The Ugly Guy's Hot Daughter: Her father Doctor Nakabachi has a rather toady appearance while she's quite beautiful. Averted in the anime, where her father's looks are bumped up to around average.
  • Unkempt Beauty: Downplayed. Between her very plain hairstyle, her unlaced shoes, loose tie and her coat perpetually falling below the shoulders (which makes her sleeves seem overly long), she gives off a slightly off-hand vibe, but is no less pretty.
  • Unwitting Instigator of Doom: Her expertise in physics can be co-opted since she's just a young, relatively unknown student. In the timeline the story primarily takes place in, she was captured by SERN and forced to perfect their time travel and died not long after. In the other time line, she was murdered by her father and her research was stolen and taken to Russia. This sparked a nuclear war that killed five and a half billion people.
  • "Well Done, Daughter!" Girl: She wants her father to acknowledge her and the reason she made many researches was because she wanted to impress her father. Unfortunately, her father is an asshole who only envies and resents her for her intelligence.
  • What Beautiful Eyes!: Right near the start, Okabe is startled at how beautifully pure and strong her eyes are. This is pretty much the only time he's willing to acknowledge any attraction to her.
  • Who Wears Short Shorts? She wears a pair of black shorts.
  • Yaoi Fangirl: Implied to be one, much to Okabe's horror when she states she imagined such a thing between Okabe and Daru. She's also unnaturally thrilled about the prospects of Luka and Okabe getting together, again to the latter's dismay.
  • Yandere: In the drama CD we see a simulation of her do this.
  • You Called Me "X"; It Must Be Serious: When Okabe begins to properly call her Kurisu, she's quite startled and knows what whatever is going on with him must be serious.
  • You Have Outlived Your Usefulness: In the Bad Future, she's captured by SERN and forced to assist them with time travel research, which finishes in 2034. Super coincidentally, she dies immediately afterward. To paraphrase John Titor, there are two kinds of people in SERN's dystopia: Those who live extremely long lives and those who die suddenly under mysterious circumstances.

    Shiina Mayuri
Click to see Zero appearance. 
Voiced by: Kana Hanazawa (JP), Ashly Burchnote , Megan Shipmannote  (EN)

Labmem 002 and called Okabe's "Hostage" after a game he made to cheer her up, which is the foundation of his current Chuunibyou schtick. Though his childhood friend, she's two years younger and is still in high school, so he views her as a little sister and works hard to support and protect her. She's noted to be fairly useless as far as advanced physics go, but nobody minds since she makes sure everyone gets along. She works at the maid cafe May Queen with Faris and enjoys trying to make Luka wear the cosplay outfits she designs herself.

  • Ambiguous Disorder: Mayuri has a..."tenuous", grasp on things, for lack of a better word. She often struggles with processing complex information like the usual lab banter between Okabe, Kurisu and Daru, or even stuff like homework, hence the frequent remedial classes that she has to take. She also speaks at quarter-speed compared to everyone else, and usually misunderstands or misphrases information she overhears, frequently has innuendo or subtlety fly over her head, and acts much younger than her age, but the most explanation we ever get is Okabe saying she's a little "off" and that she's always been like this.
  • Big Eater: Established in-universe. Mayuri seems to have an endless appetite for bananas and Juicy Karaage Number One, though somehow she still manages to maintain a super-petite figure despite the caloric intake. Okabe mentions this several times throughout the original visual novel, but always brushes it off as a mystery he will never understand.
  • Big Ol' Eyebrows: Though nobody comments on them.
  • Catchphrase: She likes to greet everyone with a friendly "Tutturu~".
  • Childhood Friends: She's been friends with Okabe for a long time. A part of her longs for a Childhood Friend Romance, but she's never treated as a serious romantic option.
  • The Confidant: Mayuri has a hard time keeping up as the story begins to escalate, but she always, unfailingly offers a shoulder the others can lean on.
  • Cloud Cuckoo Lander: She is often oblivious to the world around her, sometimes blissfully so, exhibits some rather weird believes, and obsesses over strange details at times.
  • Cosplay Otaku Girl: She loves cosplay, but is only interested in making the costumes and having others wear them.
  • Cruel and Unusual Death: She is subjected to several of these during the climax of the visual novel, with notable ones include being turned into a jellyman by SERN's bungled time travel experiment, and being run over by a metro train after taking an errant surprise shove from Nae.
  • The Cutie: She's sweet and innocent in contrast to the other three primary members of the group who tend to be the ones really doing the work on the time machine. Her primary contribution is bananas to experiment on which causes SERN to view her as expendable and mark her for death.
  • Damsel in Distress: Okabe's motivation to go back to the Beta timeline is to save Mayuri from her death in the Alpha timeline.
  • The Ditz: She tends not to understand anything that's going on in the lab and unlike Daru doesn't seem to get it even after having it simplified. When Mayuri says that one of the names Kurisu came up for to describe what they're doing was too complicated, Kurisu nearly says it doesn't count because Mayuri is dumb, which Okabe catches her on.
  • Futile Hand Reach: She sometimes reaches her hand to the sky, a gesture Okabe calls "Stardust Handshake." He's not quite sure why she does it, but it makes him a little uneasy.
  • Gamer Chick: She's a big fan of RaiNet but there's no indication that she's actually any good at it. Rather, she just thinks the mascot is adorable.
  • Get a Hold of Yourself, Man!: Slaps Okabe in the middle of his despair induced breakdown fueled by Kurisu's death.
  • The Heart: She's not good at the whole time travel thing, but she is good at making people get along.
  • Hopeless Suitor: It's hinted at in the original and confirmed in the prequel that she has always carried a torch for Okabe. She doesn't try anything because she knows she has little chances to be anything other than a sister in his eyes.
  • Hidden Buxom: While somewhat obscured in her usual sundress, the Beach Episode reveals that she's actually quite well-endowed, perhaps second only to Moeka in that department. Downplayed when wearing her form-fitting MayQueen uniform, and her new outfits in Steins;Gate 0 show her large bust with better clarity.
  • I Want My Beloved to Be Happy: Mayuri is actually very jealous of Kurisu due to Okabe's interests in her, due to her own hidden feelings for him and the thought that he'd left her behind to go after someone else. Regardless, she'd still wholeheartedly support Okabe's pursuit of Kurisu in Steins;Gate Zero, as his own happiness is more important to her than her own.
  • Incorruptible Pure Pureness: She's a pretty mild example: While Okabe and Daru are all gung-ho about hacking into SERN and other dubious activities, Mayuri disapproves even when it's clear that SERN is up to some pretty shady business.
  • The Ingenue: She's very innocent, right up to the point of repeating whatever dirty sounding things Daru asks her to without comprehension.
  • In-Series Nickname: "Mayushii", a nickname she gives to herself.
  • Kill the Cutie: The turning point of the story comes when SERN deems her expendable and disposes of her. From that point forward Okabe goes through loop after loop to save her from Moeka, SERN and even the universe itself, which views her as 'dead.'
  • Kindhearted Simpleton: Downplayed. It becomes pretty clear that whatever good qualities she may have, a high intellect is not one of them. Despite her ineptitude, she is capable of reading people's emotions easily.
  • Leitmotif: Quiet Air, a soft remix of the Laboratory theme that plays in scenes involving Mayuri.
  • Like Brother and Sister: She and Okabe have known each other all their lives and they act like a protective older brother and his cute little sister.
  • The Load: Okabe admits early on that Mayuri adds nothing to the lab since all she does is sew clothing for cosplay. She’s around because she’s Okabe’s friend and it doesn’t really matter if she’s useless. Of course, when the plot gets more involved she’s as useless as before, causing her to get worried about Okabe since that’s all she can do. Subverted in Linear Bounded Phenogram side-story, where she takes the plot into her hands by probing Kurisu and Okabe for information and sending a D-mail to take everyone to the Omega timeline with no casualties.
    • Alternate interpretation: Actually pretty subverted when you think about the fact that she serves as a sociable hub / mascot for the group. Of all the members on the science team, she’s the closest they have to a public relations specialist. ...and in Steins;Gate 0: legal guardian.
  • Locked Out of the Loop: During the later story arcs she notices Okabe is very stressed out, but since she's the one person he's not willing to walk about this problem with under any circumstances, she's left feeling like a burden.
  • Look Both Ways: How she dies in several timelines, including one instance where she's pushed into a speeding train, usually by SERN's doing.
  • Love Confession: Makes one to Okabe in the Hiyoku Renri no Darling spin-off, and another in Steins;Gate 0 right before she leaves with Suzuha in the time machine.
  • Mondegreen: Due to her nature as The Ditz, Mayuri often mishears complex phrases or names flung her way, and will recite them as is, if not more broken.
  • Morality Pet: While Okabe and the rest of the characters aren't really jerks, they're all a bit lacking in social skills. Mayuri tends to bring out the nicer sides of all the characters.
  • Nice Girl: She's happy, friendly, supportive and social in contrast to the aloof and tsuntsun Kurisu or emotionally bottled Moeka.
  • Nice Hat: Almost always wears a wide brimmed, frilly looking blue hat.
  • The Not-Love Interest: Mayuri is Okabe's oldest and dearest friend, and we see how much effort he puts in trying to prevent her death. It eventually comes to a head when Okabe has to decide whether to save Mayuri or his actual love interest, Kurisu. She does have an ending, but it's a very token affair that is basically Kurisu's ending with some different dialogue and no access to the true ending.
  • Official Couple: With Okabe, naturally, at the end of her route in the Hiyoku Renri no Darling spin-off. Unlike most of the other potential love interests, she ends up marrying him.
  • O.O.C. Is Serious Business:
    • When she slaps Okabe after he failed to save Kurisu the first time.
    • When she boldly expresses her feelings for Okabe in most of her routes, especially when they're alone with each other or something big is about to change their lives forever. Or both.
  • Platonic Life-Partners: With Okabe. They have been together for a really long time and they are easily the most important person in each other's lives. Okabe actually spends most of the series scrambling to prevent Mayuri's death to the detriment of some of his other friends, and eventually having to sacrifice even his love interest, Kurisu.
  • Protectorate: Effectively what Okabe means when he calls her his "hostage"; he has to keep Mayuri close to him in order to protect her and keep her safe at all times.
  • Smarter Than You Look: She's not very bright, but she does have strong intuition and tends to be more emotionally perceptive than those around her. She's even the one to figure out who Suzuha's father is thanks to actually paying attention to what people say and do more than Okabe or Kurisu would.
  • Static Character: She starts sweet, slow and a little ditzy and ends sweet, slow and a little ditzy.
  • Stealth Hi/Bye: If Okabe doesn't keep an eye on her, she'll frequently wander off somewhere without saying a thing the moment he looks away. He calls it her "Sneaking Fadeout".
  • Stuffed into the Fridge: If she's captured by SERN alive, Moeka sends Okabe a picture of her as a jellyman. It nearly breaks him.
  • Taking the Bullet: She dies pushing Okabe out of the way of a car in chapter 10.
  • Third-Person Person: Always refers to herself as Mayushii instead of using a pronoun.
  • Trademark Favorite Food: She loves her Juicy Chicken Number One and bananas.
  • Your Days Are Numbered: The closer they are to 0% divergence, the sooner Mayuri will die, starting at the 13th and then moving back one day for every timeline changes Okabe undoes. At first this seems logical: SERN wants her dead. However, if Okabe manages to evade them, then she'll drop dead anyway. Eventually, it gets to the point where SERN isn't even after her yet, but she still drops dead because of convergence effects.

    Hashida "Daru" Itaru
Click to see Zero appearance. 
Click to see Robotics;Notes Da SH appearance. 
Voiced by: Tomokazu Seki (JP), Tyson Rinehart (EN)

Labmem 003 and Okabe's best friend. He considers himself a Super Hacker and is an otaku with an unhealthy obsession with moe, but is almost as good at hacking as he claims and manages to access the SERN database. He has a crush of sorts on Faris, but he's not too serious about it. He doesn't get a lot of the advanced physics, but his skill with hacking and electronics more than make up for it.

He appears as a supporting character and namesake of the upcoming Robotics;Notes DaSH visual novel.

  • Adaptational Attractiveness: The anime adaptation and movie gave him a decidedly leaner and rounder design, with more defined and varied facial features compared to his chunky and angular look in the original visual novel. This further extends to 0 and its own anime adaptation, where it became his official design.
  • Amazingly Embarrassing Parents: He's this to Suzuha, but only in 2010. His future self is remarkably less goofy than in his youth, but moments of it still surface every now and then.
  • Beware the Nice Ones: Daru may be a goofy, unassuming "Hentai" Otaku who lives and breathes erotic tropes, but he's also a "gentleman" as he calls himself, and genuinely cares about the wellbeing of his friends. Though he's not cut out for physical confrontations, harming or even thinking of doing so to his fellow Labmems is a good way to piss him off. He also doesn't tolerate shows of apathy towards a friend's suffering, as evident by his reaction towards Okabe's nonchalant attitude at the end of Luka's route, where he gives up on saving Mayuri's life.
  • Big Fun: He's a big, fat and somewhat messy guy, but he helps keep the mood going with his generally laid back personality.
  • Big Good: Both literally and figuratively. While Okabe is most usually The Hero, in all possible world lines where they know each other that lead to a Bad Future, it is Daru who would always be the center of La Résistance, with or without his friend, and the one to finish the time machine prototype to send Suzuha into the past.
  • Bromantic Foil: You need quite the contrast to make Okabe look attractive, so Daru is fat, perverted and sometimes obnoxious. Reversed in 0 where Okabe spends the visual novel depressed over Kurisu's death while Daru is a slowly building a relationship with Amane Yuki.
  • Bunny-Ears Lawyer: A massive pervert though he may be, he's a very talented hacker and inventor.
  • Catchphrase: "Okie dokie!", which his daughter seems to have inherited as well.
  • Character Name Alias: His codename is derived from changing Daru to Itaru and then translating the word to Barrel. Barrel Titor.
  • Chivalrous Pervert: He insists he's a gentleman pervert. For all of his perverted tendecies, Daru is the nicest male of the Future Gadget group who's loyal, helpful and down-to-earth to his friends.
  • The Cracker: He's an amazing hacker and is easily able to get into the SERN database, though when he comes up into a special code he's unable to break through it, which forces the group to find a rare old computer that can read it.
  • Deadpan Snarker: He's rather sarcastic when it comes to Okabe's eccentricities.
  • Disappeared Dad: In the Alpha timeline, he appears to be somewhat recently deceased, though he wasn't around to raise his daughter much either. It's very important to Suzuha to find him, though she knows little about him apart from an alias he used.
  • Everyone Has Standards: While he mostly makes sarcastic quips towards Okabe, Kurisu states that even he was worried when he saw Okabe crying.
  • Formerly Fat: Applies to his future self, who seems to have lost most of his girth during the years leading up to 2036.
  • Future Badass: In the SERN timeline, after Okabe dies in 2025 Daru begins to lead the terrorist group at the expense of raising his daughter and builds a time machine, though it was not fully operational.
  • Gadgeteer Genius: His future self was the one who created Suzuha's time machine.
  • Geeky Turn-On:
    • Despite his usual demeanor, Daru is actually a closeted masochist, as demonstrated during Suzuha's route in the Hiyoku Renri no Darling spin-off, where she attempts to utterly break him to stop him from developing a crush on her. Rather than feeling devastated, Daru seems to get a kick out of being verbally thrashed like that, and the whole scheme backfired.
    • In order to gain popularity for MayQueen Nyan-Nyan during Faris' route, Daru volunteered to dress up in a maid uniform and titling himself "Darushii Nyan Nyan". This is promptly shot down by Kurisu and Okabe for obvious reasons. When that failed, and Kurisu is retooled into a Sadist character, Daru would constantly find ways to shoehorn himself in as her slave, much to her protests.
  • Get a Hold of Yourself, Man!: In Steins;Gate 0, he punches Okabe after Okabe suggests that Maho wants Mayuri to die and Kurisu to live.
  • Good Parents: In 0 due to Beta Suzuha sticking around after Okabe refuses to time travel again, she's living with him. While he's still a perverted otaku, he tries his best to help his future daughter.
  • Heterosexual Life-Partners: Obake likes to call Daru his favorite right arm and in the alpha timeline they start the resistance against SERN.
  • Hollywood Hacking: Just to show how terribly awesome a "Super Hacka" he is, Daru managed to hack into the internal database of SERN, possibly the most secretive and influential organization in the world, with just a rickety home PC. Also, if Unreliable Narrator Okabe is to be believed, he had also gained access to the MI6 in the past using that exact setup.
  • In-Series Nickname: Everybody calls him "Daru".
  • Insistent Terminology: It's HACKER, not Hacka!
  • Lovable Sex Maniac: Whenever a girl lets loose an Accidental Innuendo, he'll ask them to repeat it. He also insists on having all the technical stuff explained to him in terms of eroge.
  • Nerds Are Virgins: He's never had much luck with the ladies, and all of his friends expect him to be alone forever (which he begrudgingly agrees with). It's part of the reason why he, Okabe, and Kurisu have trouble believing he's Suzuha's father.
  • Nice Hat: His signature yellow cap with a printed-on question mark that he dons absolutely everywhere, even at his own wedding. He's still wearing this as of 2036, just to show how fond of it he is.
    • The only time he's not seen wearing it is during the events of Robotics;Notes DaSH, where he has a boonie hat instead.
  • Oedipus Complex: Inverted. He (unknowingly) develops a mad crush on his own daughter during Suzuha's route in the Hiyoku Renri no Darling spin-off, after being hugged by her from out of the blue, despite repeated protests from Okabe and Suzuha herself. Despite some internal tension, however, everything went swell in the end and he ends up falling for Amane Yuki instead, as he should.
  • O.O.C. Is Serious Business: As seen during Suzuha's route in the aforementioned spin-off. Normally laid-back, once Daru's set his eyes on Suzuha, he'd stop goofing around and start planning seriously for the future, to the point he almost inadvertently created a divergence that would erase her from existence.
  • Otaku: 2-D girls are the only girls for him! Except when they aren't, of course.
  • Sneeze Cut: In the OVA.
  • That's What She Said: He tends to irritate Kurisu by interpreting everything she says in a dirty manner.
  • Wacky Parent, Serious Child: In 0, he has this dynamic with Beta Suzuha. Daru is still an otaku making perverted and stupid comments at everything while Suzuha tries to get him to stop fooling around and act more like the father she knows in the future.
  • The Watson: Daru is intelligent enough to keep up with a little prompting, but he’s not really into physics like Kurisu or Okabe, so they have to explain the plot to him in simple terms. With varying degrees of success.
  • Yuri Fan: Daru never turns down the opportunity to imagine his non-Okabe friends having lesbian makeouts. Even Luka.
    Okabe: Lukako's a guy.

    Kiryuu Moeka
Click to see Zero appearance. 
Voiced by: Saori Goto (JP), Jessica Cavanagh (EN)

Moeka is a silent and inexpressive young woman who prefers to communicate through her cellphone. She's looking for the IBN 5100 and is the fifth person to join the lab after Okabe bumps into her taking photos for the newspaper she works at. If left to her own devices, she'll never speak, but will send dozens of gigantic text messages at a time until the receiver is forced to respond. She doesn't contribute to the time travel work, but she sends the first major timeline altering message to the past after she says she regrets her choice in cell phones and wants to redo it.

  • Adorkable: She's too socially awkward to talk, but during the third chapter she sends boatloads of mails that show that she's too scared of the dark to come knock on the door of the lab and other numerous goofy emails. Which makes quite the contrast when she kills Mayuri despite a previous mail indicating she found her hilarious. During Moeka's arc near the end a middle ground is found between these two poles in that her awkwardness, while cute, has also made her a weak, dependent and easily manipulated doormat, explaining the contrasting attitudes.
  • Alas, Poor Villain: In the final arc before the true end she's shown not to be an emotionless, heartless and clinical woman who can bring herself to kill but rather a passive, manipulated and weak one that will do anything she's told. When dying, she apologizes.
  • The Alcoholic: Okabe's scant trips to her apartment reveals that she drinks mainly beer or other alcoholic beverages in place of water, as evident by the heaps of cans everywhere, both empty and unfinished. In fact, she drinks them about as often as Okabe himself drinks Dr. Pepper.
  • Ambiguous Disorder: There certainly is something off about her. She is shy to the point of preferring to communicate via text message even when face to face with the person she's talking to and responds with extreme distress if anyone attempts to take her cell phone from her, and is almost always emotionally repressed and expressionless. She's also completely dependent on her "parent figure" that she has never even met in person.
  • Attention Deficit... Ooh, Shiny!: Just watch how she cleans her room.
  • Berserk Button: Try to snatch her phone from her hand and she will go berserk until the phone is back in her hands.
  • Beware the Quiet Ones: Moeka communicates by using her phone to send messages to anyone frequently and rarely speaks but behind her quiet front is a well combat-trained woman working as a rounder for SERN and willing to murder on the order of her superior, FB.
  • Big Damn Heroes: In Steins;Gate 0, during Maho's route, she saves Maho and prevents Stratfor from taking control of Amadeus!Kurisu.
  • Bungled Suicide: She attempted suicide once in the past. This emotionally vulnerable stage left her open to SERN's recruitment and she grew utterly dependent on her contact.
  • Camera Fiend: She's always taking pictures of everything she sees with her cellphone.
  • Character Development: She gets a rather large dose of it during Maho's route in Steins;Gate 0.
  • Defrosting Ice Queen: Her entire route in the Hiyoku Renri no Darling spin-off is this.
  • Does Not Like Spam: Apparently hates macadamia nuts.
  • Driven to Suicide: When she stops receiving FB's messages in the last loop due to having outlived her uselessness, she eventually commits this.
  • Drives Like Crazy: She drifts on the highway in Steins;Gate 0 under the justification of getting herself and Okabe to their destination more quickly.
  • Elective Mute: Prefers to use text messages instead of talking. Or singing, as demonstrated in her Hiyoku Renri no Darling route where she sends Okabe torrents of texts of the lyrics at breakneck pace instead of actually raising her voice.
  • Emotionless Girl: Moeka never shows any expression on her face or in her voice unless you do something like try to take her phone, though by reading the mail she sends it's clear how she feels about everything.
  • Evil Costume Switch: Switch to skintight black jumpsuit after revealing herself to be Rounder.
  • Extreme Doormat: Deconstructed. She tends to be extremely passive and willing to follow directions from FB as a rounder for SERN even if they're orders that she's clearly not happy about carrying out such as killing her friend Mayuri. As Okabe undos many D-mails as he could to save Mayuri, Moeka, after sending the IBN 5100 overseas desperately try to contact FB even though he wouldn't pick up causing her to commit suicide because, like Mayuri, the Alpha worldline chose her death as its convergence.
  • Faux Action Girl: Zigzagged. When we already know she's a Rounder working for SERN as she's well-trained in combat especially with guns. You think it's obvious for her to take down Okabe with everything she got but after Okabe arrives at her apartment to take her phone from her hands. She couldn't do better to retaliate back as Okabe gives her an instant and easy beatdown because she's fixated on her phone instead of him but in the true sequel, she can use her gun even when she's still under her civilian identity to help out against enemies.
  • The Glasses Come Off: She's missing her glasses when she reveals to the lab members that she's a SERN agent.
  • Hidden Depths:
    • It's revealed in the Hiyoku Renri no Darling spin-off that she's the author of a surprisingly popular romantic young adult novel, though she'd appreciate it if nobody finds out.
    • In Steins;Gate 0 - during Maho's route, it's revealed that she is knowledgeable about classical music, seems to be a relatively competent investigative journalist, and is much more talkative than in the original game.
  • I Just Want to Be Loved: Much of her current personality was attributable to her abusive childhood and her being an orphan. Having nearly killed herself in the past out of loneliness and feelings of worthlessness before the enigmatic FB stepped ito her life, Moeka desperately wants to be cared for and as such is easily manipulated.
    • The Hiyoku Renri no Darling spin-off further explores this aspect of her life, where many characters, Mr. Braun among them, notes how she seems much happier when around Okabe and that no one has ever seen her that chipper before.
  • Innocent Fanservice Girl: Moeka, being her socially awkward self, doesn't really get how attractive she is in her lingerie during the Faris/Maho slumber party in 0, and chose the outfit for mobility.
  • In-Series Nickname: Okabe calls her "Shining Finger" because of her ridiculously fast typing. Another that's lost in translation is Shiatsu-shi meaning "masseuse", after Okabe jokingly commented on how quick and flexible her slender fingers are. Despite the latter continues to be used throughout the series, official subtitles have seemingly overridden it with "Shining Finger" wherever relevant.
  • Jumped at the Call: Right after a failed suicide attempt, she was contacted to join the Rounders. It gave her life meaning to be in contact with someone that would listen to her like FB.
  • Kick the Dog: In chapter 6, after she's revealed to be the rounder as M4 and unwilling to but kills Mayuri with her own hands on FB's orders. Okabe time leaps to rescue Mayuri from her predestined death as possible and if you choose Okabe to take a certain path, the rounder kidnaps Mayuri and takes her to France which then follows with Moeka phoning him and sends him a picture of Mayuri now as a jellyman experiment just to rub it in his face to his horror.
  • Knight of Cerebus: After FB gives her the word, Moeka will not rest until she has Mayuri dead and the rest captured.
  • Meganekko: Her glasses help her look withdrawn and timid.
  • The Mole: She joins the lab group largely because she's also looking for the IBN 5100 and once she has everything she needs, she leads a team to capture them all apart from Mayuri, who is marked for death instead.
  • Ms. Fanservice: Glass-girl, large breasts, tall and has long legs. Not to forget skintight jumpsuit. Yep.
  • New Job as the Plot Demands: As a freelancer, she is often involved in a new gig every time she appears on-screen. While the nature of the jobs may vary, it's usually something that requires either a lot of writing, or a lot of photography, or occasionally both.
  • Official Couple: With Okabe, at the end of her route in the Hiyoku Renri no Darling spin-off.
  • Perpetual Frowner: Her life is pretty empty, so she always looks essentially expressionless and depressed. When in the lab for the first time she seems intrigued by these people, but since she looks so emotionless it's a little hard to tell.
  • Phoneaholic Teenager: An adult example. She's always looking at her cellphone, prefers to communicate through text messages instead of talking and cannot stand to have her phone taken away from her.
  • The Quiet One: She hates having to speak, but when using mail she's a real chatterbox to the point where the frequency of her messages really irritates Okabe. She begins talking just a bit more frequently by the time the movie comes around.
  • Rapid-Fire Typing: Okabe doesn't call her "Shining Finger" for nothing. Moeka is simply capable of typing and sending longform text messages in the span of a heartbeat, and she does this with a flip phone keypad, which requires repeated taps to cycle through the assigned characters for each key, instead of having a full keyboard on the screen like a smartphone. This becomes a plot point when she changes the contents of her D-Mail so fast that nobody notices. Witness for yourself here.
  • Shrinking Violet: She's too shy to talk to people directly and tends to be reclusive, which is rather jarring. what with her job as a journalist. At one point, she threatens that she knows Okabe is in the lab and is going to come knock until he comes out, but when she actually gets there (Okabe slept through these messages), she gets too nervous to actually try it since the building is too dark. On a less cute/comical note, her poor ability to interact with others left her feeling isolated and miserable, which made it easy to recruit her into the Rounders and follow any order her superiors gave her.
  • The Silent Bob: Due to her social anxiety issues, it's incredibly difficult to get any peep out of her at all. She does speak at times, though usually in short, fragmented sentences that don't convey a whole lot in the way of meaning or significance, and even then still at whispering volume. She makes up for this by being frighteningly talkative behind a keyboard, however.
  • Spy Catsuit: After she reveals herself to be a Rounder agent.
  • Stalker Without a Crush: She's almost silent in person, but with a phone in her hands she'll obsessively send gigantic text messages over and over no matter how irritated her subject gets at the attention. While Okabe is the one to get most obviously annoyed and wish that she would quit it, she's actually even worse in relation to her boss, who has gotten quite sick of it but has to keep responding anyway.
  • Stealth Hi/Bye: She often gets the drop on Okabe due to her usual lack of presence and non-talkative personality. And she can just as easily leave his company without him even noticing it.
  • Subordinate Excuse: She's a Rounder not because she cares about SERN or time travel, but simply so that she can continue to talk to her surrogate mother FB.
  • Throw the Dog a Bone: In the Steins;Gate worldline, Suzuha is able to foil SERN's plans in 1975, which means Moeka gets to live a normal life with friends that actually care about her.
  • Token Evil Teammate: While not exactly evil by nature, Moeka does work for SERN as a Rounder under FB, who goes around silencing and/or detaining people who know too much, usually the former. That includes those she consider to be her friends.
  • Trademark Favorite Food: Beer and assorted cup noodle.
  • Undying Loyalty: She places complete faith in her supervisor, FB. She'd do anything for her, though she's too afraid to meet in person or call directly.
  • Useless Without Cell Phones: She is very dependent on her cell phone. So much so that she'll have a meltdown if it's taken away from her.
  • Villainous Breakdown:
    • Driven to Suicide after FB stops contacting her after she succeeds in her mission and is no longer of any use in the timeline where Ruka undoes the effects of her D-Mail, typing on her cell phone nothing but endless strings of "FB".
    • Has a much more violent one when Okabe manages to get her cellphone away from her, pounding on the door, throwing furniture and shrieking at him to give it back.
  • Walking Spoiler: The second half of the anime is extremely hard to explain without mentioning her.
  • "Well Done, Daughter!" Girl: Moeka desperately wants the approval of her mother figure FB, who is actually Mr. Braun. The lengths she goes to to please "her" include premeditated murder of a friend.
  • When She Smiles:
    • The only time she ever visibly smiles is at the very end of her route in the Hiyoku Renri no Darling spin-off, after she and Okabe became an official couple.
    • Maho and Faris' antics during their slumber party in 0 did get a chuckle out of her, though she quickly denies it. Maho and Faris are understandably surprised by the sight, before the latter starts furiously tickling her, thus making her laugh uncontrollably.
  • Your Days Are Numbered: Moeka is doomed to die in 2010 within the Alpha Divergence, same as Mayuri. She'll either be executed by SERN to cover up her tracks, commit suicide out of despair at lack of contact from FB or, if Tennouji spares her, some freak event like time-traveling Nae will get her.


    Urushibara Luka
"Balls or not, I'd hit it!"
Voiced by: Yuu Kobayashi (JP), Lindsay Seidel (EN)

Luka is Mayuri's classmate, an extremely feminine looking boy who works at his family's shrine. He seems to worship Okabe, who believes they have a master/disciple relationship. He's very shy and soft spoken and before the story began was too nervous to ask to join the group, so he becomes the sixth member to join after Moeka and Kurisu have already joined. Like Moeka, he's allowed to send a message back to the past because he hopes he can use time travel to make himself be born as a girl. Somehow.

  • A-Cup Angst: He retroactively becomes a girl (don't question it!) but looks identical. Meaning completely flat chest, something she's not proud of.
  • Ambiguous Gender Identity: Luka outwardly identifies as male, though with some degree of discomfort, and he wishes he had been born female instead. It's not clear if it's because he's genuinely transgender or because he knows Okabe will never fall in love with another man. A D-mail is sent to somehow turn him female and Luka does seem happier that way. In Luka's ending, she regains memories of when she was male, which causes gender dysphoria. It's unclear whether male Luka had the same dysphoria in the first place.
  • Ambiguously Gay: Luka holds overtly-intense romantic feelings for Okabe even before his gender was swapped as a result of a D-Mail.
  • Attractive Bent-Gender: He looks too damn good in girl's clothes. When he turns into a girl, he looks exactly the same as he was when he was a guy.
  • Babies Ever After: In the worldline where Luka stays a girl, her ending has her and Okabe with a child.
  • Because You Were Nice to Me: Like Faris, He likes Okabe because of his kindness which dates back to when Okabe first met Luka as he was walking through Akihabara in his Miko outfit when he got harassed by Otakus who shamelessly took photos of him without permission. Okabe was there by coincidence and stood up for him but afterward, Luka admitted he's a male causing Otakus to leave him alone except Okabe who took a quick liking to him and vow to train him in swordsmanship. After Okabe help him to be born as a girl via D-mail, as they went on a date in chapter 8 to undo the D-mail which was the reason Mayuri destined to die in the Alpha timeline, she slips up her words that Okabe remembers that only the male Luka would say and realizes that he's not the only one with Reading Steiner; Faris and Luka begins to have previous memories coming back to them as the timeline changes and Luka acknowledges her romantic feelings to him girl or boy whatsoever and decided to undo the D-mail and be a guy again if it means saving Mayuri.
  • Bishōnen: Luka is an incredibly pretty and feminine young boy. His future self remains largely the same, only taller and wearing his now-waist-length hair in a ponytail.
  • Blanket Tug O' War: In the bonus episode, Luka appears to be quite the blanket thief.
  • Bokukko: Thanks to the D-mail sent to the past, Luka turns into a girl but still uses the male pronoun "boku" to address herself.
  • Covert Pervert: Despite appearances and his personality, Luka seems to have certain..."fantasies", about him and Okabe at times. Usually, he would freak out when called upon during these moments, and would vehemently deny ever having such thoughts despite nobody ever mentioning them at all. He's also jealous of the female Labmems who get to see and touch a shirtless Okabe, as well.
  • Crotch-Grab Sex Check: He's subjected to this twice by Okabe, once in the original timeline, and once more in the Delta worldline where they are an official couple. The first attempt ended horribly due to Luka being female at the time, while the second less so since Okabe found what he's looking for, and is shocked that it's somehow bigger than his. Luka is also weirdly turned on by this, but would rather they do it in private where nobody's looking.
  • Dragged into Drag: His father and sister make him crossdress on occasion. He has no problems with dressing like a miko, though.
  • Dude Looks Like a Lady: Luka is so incredibly pretty and feminine that he's frequently mistaken for a girl. Lampshaded by Okabe when Luka is introduced; he makes a series of flattering descriptive statements, followed by "but he's a dude".
  • Even the Guys Want Him: Much to Luka's discomfort, there seem to be multiple guys attracted to him even when they know his gender. Daru in particular likes to insert him into yuri fantasies.
  • Extreme Doormat: Not normally, though Okabe's treatment of Luka could range from callous to downright mean at times, if his text messages to him are any indication. And at other times, Okabe would make embarrassing requests of him, or rope him into schemes that he'd normally decline, though his opinion of (and feelings for) him wouldn't change.
  • Gay Option: He's a feminine-looking boy and one of Okabe's romantic options. However, Luka only has a chance to be with Okabe if he turns into a girl and stays like that at expense of Mayuri.
    • Except in world line 3.667293 (Delta attractor field), a known line where Luka becomes a couple with Okabe with no alteration in gender.
  • Gender Bender: After sending his D-mail, he becomes a full-fledged female in the following timelines.
  • Gender-Blender Name: Luka is a name which is often given to girls, but boys have this name, too. In French though, this would be a male name (Lucas, with a silent s).
  • Go Out with a Smile: He passes away happily in Okabe's arms after pulling a Heroic Sacrifice to protect Faris and Mayuri from enemy troops in the Bad Future.
  • Hair Decorations: Wears a hair clip with a skull. Definitely part of what makes him so girly looking.
  • Heroic Sacrifice: He gets shot and killed by enemy soldiers trying to defend Faris and Mayuri in the Bad Future, and passes away in Okabe's arms. The anime changes this to him drawing enemy attention to himself to allow Faris to retreat.
  • Hopeless Suitor: He is like Mayuri in this sense, whether male or female, and is actually aware of his plight. Subverted with his/her ending in the original visual novel, however, where Okabe is actually receptive to a female Luka's advances.
    • Averted in the "Darling of Love" spin-off, however, where the "original" Luka actually is revealed to be an option in a Delta world line.
  • If It's You, It's Okay: Luka is more than willing to take part in normally embarrassing or questionable activities as long as it pleases "Kyouma-san".
  • Incompatible Orientation: In regards to all but one currently known timeline where Luka isn't female by birth.
  • In-Series Nickname: "Lukako", used by Okabe.
  • Instant Web Hit: According to the Visual Novel, pictures of Luka in cosplay got leaked on the internet while Okabe was in the hospital for his stab wound, and he's now regarded as one of the internet's most popular "Traps".
  • I Want My Beloved to Be Happy:
    • As a girl, Luka chose to sacrifice her femininity and chance of finally being with Okabe in order to save Mayuri's life. In the ending that the D-Mail wasn't reverted, she'd still want to fulfill Mayuri's desire for them to cosplay together, in order to make her final day alive a happy one.
    • Despite his feelings for Okabe and often becoming visibly jealous at the prospect of the former getting into a relationship, Luka wholeheartedly supports Mayuri's pursuit of him in the Hiyoku Renri no Darling spin-off. While he admits to feeling a bit jealous of their romance, it's the fact that both of the people he cared about the most finally found happiness that's more important to him.
  • Katanas Are Just Better: His weapon of choice in the Bad Future is one. All that training with Samidare really helped, no doubt.
  • Let Them Die Happy: In Luka's ending she gets to be the only person not named Okabe or Nae to use the time leap and make sure to use it to have Mayuri's last day be a happy one rather than what would normally have happened.
  • Limited Wardrobe: Resoundingly averted, strangely enough. In a game where most characters have one to two choices of outfits at best, Luka alone has fournote  (six if counting the Hiyoku Renri no Darling spin-off), two of which he consistently wears in rotation, unlike the other Labmems who only change when the occasion arises.
  • Living Emotional Crutch: In the world line of Steins:Gate 0, Luka is troubled with feelings of worthlessness at being Locked Out of the Loop in regards to the secret(involvement/knowledge of time-travel) that the lab members seem to be keeping, but in response to voicing this frustration, Suzuha bluntly states that Luka has unknowingly become this trope to Okabe for being the only person he has managed to remove from that secret .
  • Miko: Despite being male, Luka seems to work as the shrine miko anyway, which doesn't help when it comes to being recognized as male.
  • Nice Guy: Very kind, polite, helpful, shy and grateful to everyone.
  • Official Couple: With Okabe, at the end of his/her route, should Okabe decide not to send the D-Mail to save Mayuri's life.
  • One of the Boys: Inverted. Due to his overt femininity, Luka gets along much better with girls than other boys, as evident by his more natural interactions with the female Labmems. He also hangs out exclusively with girls at his school, Mayuri being one of them, because being around other boys while looking like that invites a lot of teasing which makes him uncomfortable. Reaches a logical conclusion in episode 25 of the anime adaptation where he is assigned the same hotel room as Mayuri instead of the guys.
  • Out of Focus: In Zero. Though he still appears and offers his support to Okabe (even giving Kagari a home in some routes), he has little character drive and is unaware of time travel for the most part, unlike Faris whose wealth and connections make her a far more invaluable ally and give her a more prominent role in Zero.
  • Phrase Catcher: Whenever Luka is being cute, Okabe will often say "But he's a dude".
  • Prone to Tears: Always appears on the verge of tears.
  • Reluctant Fanservice Guy: Mayuri likes to dress him up in cute clothes, to his great embarrassment.
  • Rescue Romance: Luka fell for Okabe because he rescued him from a group of camera-wielding otaku.
  • Shrinking Violet: He's very shy and quiet, so Okabe seems to have taken it upon himself to give him manliness lessons by practice swinging a fake sword.
  • Single-Target Sexuality: When a female, Luka recounts their first meeting to Okabe and confesses that it was Love at First Sight. However, what she is remembering is how they first met when Luka was a guy, but in miko attire, and Okabe was completely unconcerned and accepting of that. Okabe realizes that Luka's feeling are probably still the same when she's turned back into a guy, but is unable to answer them.
  • Spell My Name with an "S": Word of God has confirmed that his name is spelled "Luka", the characters simply pronounce it with an R because of their Japanese accents.
    • It gets confusing, however, as "Ruka" is still very widely-used in various promotional materials released prior to the (relatively recent) confirmation, his character pages on an overwhelmingly large number of anime databases still go by the old name, and the official English translation of the anime by Funimation still list him as such in the subtitles and credits. Really, the only places where it is consistently spelled with an "L" are in the new English releases of the original games, Elite, and 0.
    • Furthermore, most of the fanbase just spells it like that as well, since they're more used to it.
  • Stupid Sexy Flanders: Okabe has to constantly remind himself that no matter how cute and feminine Luka is, he's still a dude and Okabe isn't into that.
  • Tender Tears: Luka has a very soft personality and is easily upset, frequently leaving him looking on the verge of tears.
  • Transgender Fetishization: Luka is an extremely pretty boy, to the point that the viewpoint character has to constantly remind himself that no matter how pretty Luka is, he's a guy and gets dressed up in cute costumes by the Cosplay Otaku Girl in the group. When given access to time travel technology, Luka uses it to turn into a girl (... somehow).
  • Unsettling Gender Reveal: Everybody who sees Luka assumes he's a girl. Kurisu is particularly shocked to learn the truth. When Luka is retroactively turned into a girl, the one in for a surprise is Okabe, who has grown used to thinking of Luka as a guy and tries to grope her to prove it. Doesn't work out as intended.
  • Wholesome Crossdresser: He's seen wearing a shrine maiden outfit fairly often. Mayuri wants to make him wear female cosplay clothing as well.
  • Yamato Nadeshiko: A Rare Male Example. Luka is very feminine, supporting and domestic Japanese boy.

    Faris Nyannyan / Akiha Rumiho
Voiced by: Halko Momoi (JP), Jad Saxton (EN)

Faris is Mayuri's coworker at the May Queen Cafe as well as the owner. She's able to keep up with Okabe's fantasies because she seems to be living in one of her own. She always wears a pair of cat ears and does the typical 'nya' verbal tic even off duty. Likes to play with Okabe, but he finds her kind of annoying since she's better at making up weird melodramatic stories. She's secretly quite wealthy and becomes the seventh member to join the lab group. She keeps the content of her mail a secret.

  • Animal-Eared Headband: She always wears a cat ear headband, even when she's at home relaxing. When she does take them off, however, it's serious business. She's only seen without them once during a moment when she wants to speak to Okabe as Akiha Rumiho rather than talk to Kyouma as Faris Nyannyan.
  • Beat Them at Their Own Game: Her Chuunibyou game is on a whole other level compared to Okabe, thus frustrating him to no end because he couldn't out-do her in their wacky conversations.
  • Because You Were Nice to Me: In chapter 7, when Okabe helps her win the Rainet tournament against 4C because of the latter cheating and taking the beating from his gangs for her wellbeing. She opens up to him by confiding her real name to him as a sign of trust then telling him about her previous memories of opening May Queen Nyan Nyan cafe after her father died in the plane crash which was averted thanks to the D-mail she sent but because of the Butterfly Effect, Mayuri's destined to die no matter what in the alpha worldline and the solution is to undo the D-mail which she tearfully willing to do it if it means saving Mayuri on Okabe's behalf.
  • Calvin Ball: Although not a game, any extended conversation she has with Okabe becomes very much this.
  • Cat Smile: Her default expression is a playful smile.
  • Cloud Cuckoolander: She has an irritating tendency (to Okabe, at least) of being able to play right along with his delusions since she's every bit the space case that he is. It leads him to feel that he cannot beat her.
  • Cosplay Otaku Girl: She loves dressing up as a cat eared meido despite being rather wealthy. The ears in particular almost never come off.
  • Crocodile Tears: When Okabe is understandably doubtful about her honesty regarding the need to use time travel to win a Rainet match to improve her memory, she makes him go along with her by pretending to cry.
  • Cry Cute: Invoked, as said in Crocodile Tears. She gives a genuine one in her ending, when she realizes her boyfriend is never coming back.
  • Curtains Match The Windows: Pink hair and pink eyes.
  • The Cutie: She has an extremely cutesy attitude. It's something of a stage persona at times, but mostly just something she enjoys doing.
  • Daddy's Girl: In the timelines where her father is alive, they have a very close relationship and she adores him. She's clearly very affected by having to revert the timeline.
  • Disappeared Dad: Her father died when she was little, but he's alive in the timelines after she sent her D-mail.
  • Ditzy Genius: Despite her foolish looks, she actually has a very insightful and intelligent mind. She runs a restaurant, works as the Akiha family head, oversees the redevelopment project for Akihabara, is a solid tactician and she shows both interest and a good understanding of time travel, though mostly regarding Okabe's misconception about there being a universal 'present.'
  • I Lied: After successfully using a D-mail to go back and win a tournament, Okabe asks her to fulfill her end of the bargain and tell him how to undo her D-mail, after which she admits that her future self had probably just lied since she wanted to win really badly. She wasn't lying. She ends up remembering later and really crying.
  • Improbable Age: Believe it or not, 17-year-old Faris owns Akihabara, and is responsible for making Akihabara into moe town. In the altered timeline with her father still alive, she didn't have the influence or desire to make it into a moe town, so there's no anime stuff anywhere to be found.
  • I Wished You Were Dead: The last time she saw her father before he died she yelled at him to die for going on business trip instead of spending time with her.
  • Large Ham: In similar fashion as Okabe's Hououin Kyouma persona, Faris enjoys her theatrics.
  • Living Lie Detector: By looking at people, she can tell how honest they're being to a rather precise level. Her description of it sounds like a rather advanced Cold Reading.
  • Love Confession: If you skip the D mail that gets you into chapter 8, you end up at the Faris ending where she confesses before Okabe even sends back the mail. He tries to ignore her confession. In a rare moment of honesty, she sighs and admits it's a bit tiresome that he always evades her like this.
  • Mega Twintails: She has massive pink twintails since she likes to dress like an anime character.
  • Ms. Imagination: Like Okabe, she seems to love holding onto delusions. For her, she styles herself as the great Faris Nyannyan, a cat girl meido. Much to Okabe's irritation, she's better at it than he is: she's pretty quick witted and can just absorb all of his posturing into her own scenario.
  • My Greatest Failure: The last time she saw her dad, she got in a fight with him. She hasn't been able to live it down.
  • My Greatest Second Chance: Her D-mail gave her a chance to bring back her father, but it necessitated sacrificing Mayuri.
  • The Nicknamer: She has a habit of fashioning nicknames for her friends by attaching an approximation of their given names to a "-nyan" suffix, regardless of whether they like it or not. Except for Okabe, of course, for obvious reasons.
  • Ojou: She's extremely wealthy and has quite the lifestyle, though she keeps this hidden from most people.
  • Only Known by Their Nickname: She's mainly known by the name she uses at the maid cafe. Almost nobody knows her real name is Akiha Rumiho.
  • Parting Words Regret: The last thing she said to her father before he took off for a business trip instead of spending time with her was her yelling that she hated him.
  • Rescue Romance: After he protects her from a rival gang of RaiNet players, she starts to call Okabe her prince.
  • Rose-Haired Sweetie: Her energetic, playful attitude and pink hair matching is quite possibly not a coincidence at all: As much as she loves anime culture and considering the otherwise natural-ish hair colors, it could be dyed.
  • Secretly Wealthy: Much to Okabe's (and everyone else's) surprise, she basically owns Akihabara. After the fact was made known, her last name starts making sense...
  • Spell My Name with an "S": "Faris" is apparently the official spelling, but "Feiris" and "Feyris" also see heavy use.
  • Spoiled Sweet: She's very friendly and well loved, due in no small part to using her fortune to spread anime culture through Akihabara.
  • Triple Shifter: High school student, Maid Cafe owner and waitress, local RaiNet champion, and land baron of all of Akihabara.
  • Verbal Tic: She even ends her sentences with "-nya."
  • You Gotta Have Blue Hair: She has long pink hair. Very animesque, so she might be dying it considering the otherwise natural hair colors and her own personality.

    Amane Suzuha / Hashida Suzuha
Voiced by: Yukari Tamura (JP), Cherami Leigh (EN)

Amane is a teenaged girl who works at Mr. Braun's shop. She likes to ride her bicycle and gets along very well with his daughter Nae. She's very physically fit and a friendly person, but her rather strange vocabulary can be difficult to deal with. She has an instant antipathy towards Kurisu, but is still the eighth and final member to join the lab. She doesn't send a message to the past, but Okabe sends one on her behalf.

  • Action Girl: She is a time-traveling, rebel fighter, time-hopping to the past to save us from her crappy future. She doesn't reveal her fighting capabilities until the Rounders make their move.
  • Alternate Self:
    • The Suzuha that appears in the finale is different from the one that appeared earlier in the series. Steins:Gate 0 focuses on the second Suzuha.
    • A third Suzuha appears in the movie, coming from the Steins;Gate timeline.
    • The Hiyoku Renri no Darling spin-off introduces a fourth that doesn't come from a Bad Future, who traveled to the past to collect obsolete technology, and witness her parent's first time meeting while she's at it.
  • Back for the Finale: She largely exits the plot when she goes back in time to get the IBN 5100, but returns at the end as a different alternate future self than the one Okabe knows and is here to prevent World War III.
  • Beauty Is Never Tarnished: Beta Suzuha in her Zero VN POV segments alludes to wearing clothes that cover her entire body so as not to show her many battle scars. However, in the CG during her Full-Frontal Assault fight, the portion of her skin shown is perfectly fine.
  • Been There, Shaped History: A quite weird and literal case. Suzuha was able to influence the course of the series in multiple ways.
    • The first is by posting on the internet under the John Titor alias in 2000, therefore giving Okabe an idea of what he's getting into in 2010.
    • The second way is more impactful than the first, but also a lot more of a downer, where another version of herself finds the IBN 5100 in 1975 but becomes stranded there due to the time machine breaking down. As she grew older, Suzuha met and became a positive influence in the life of a young Tennouji Yuugo, and introduced the man to his future wife and changed his life for the better, despite the latter's murder at the hands of SERN. She was also acquainted with a younger Makise Shouichi and Akiha Yukitaka, and entrusted the IBN to the latter, who eventually donated it to the Urushibara family's shrine.
  • Big Eater: In Steins;Gate 0, she seems to regularly compete in eating competitions and winning. She states it's something she picked up when food wasn't regularly available.
  • Boyish Short Hair: Her hairstyle consists of short hair and two Braids of Action on either side of the head. She's also a physically fit self-proclaimed warrior.
  • Brick Joke: In the movie, she has Daru's hat.
  • Catchphrase: "Okie dokie!", one that she borrows from her father.
  • Companion Cube: She's very attached to her bike. It becomes something of a memento after she goes back in time.
  • Cross Player: She goes by John Titor on @channel.
  • Driven to Suicide: In one timeline, her older self committed suicide after having failed to complete her mission. In others, she passes away due to illness.
  • Exact Eavesdropping: Thanks to the windows being left open and Okabe's excessive volume Suzuha overhears a lot of what they're working on. Though you could also read her hesitation before giving this answer as her just making an excuse. After all, she doesn't have to overhear anything, she already knows that Okabe becomes a terrorist opposing SERN.
  • Extreme Omnivore: She mails Okabe to ask if there’s anywhere to find bugs or weeds to eat.
  • Fish out of Temporal Water: She takes Okabe's Kyouma persona at face value, refers to herself as a warrior and occasionally drifts into some rather odd word choices that take Okabe a few moments to puzzle out. She's from a future where she constantly fights and only knows Okabe as a deceased revolutionary leader who helped invent time travel devices, so from her perspective everything he says sounds about right, if perhaps a little dramatic.
  • Full-Name Basis: Has a huge habit of addressing everyone by their full name even her close friends. This changes once her true identity becomes known to the lab.
  • Full-Frontal Assault: She has a few moments of this during 0, where she runs into a mysterious figure rummaging through the lab just as she exits the shower.
  • Get a Hold of Yourself, Man!: Suzuha is generally the voice of reason across all timelines. In Steins;Gate 0, she gives Okabe a well-deserved Megaton Punch, causing him to snap out of his Heroic BSoD and revive the Kyouma personality.
  • Girls with Guns: Beta!Suzuha.
  • Hate at First Sight: Right from the moment she first sees Kurisu, Suzuha takes a great dislike towards her and acts very wary around her, to Kurisu's great confusion and discomfort. Suzuha later reveals that in the future she comes from, Kurisu worked for SERN and was the one who completed the time machine. Still, after spending some time with the others, she realizes that Kurisu's reasons were likely not a mere lack of morals or conscience, and figures she might have been captured and forced into it.
  • Improbable Age: She's only eighteen, but considers herself a warrior and is a veteran terrorist used to fighting SERN. She even alludes to having been captured and tortured once.
  • In-Series Nickname: Okabe calls her "Part-Time Warrior".
  • I Will Find You: Part of the reason she's in the present is to find her father. Mayuri is the one to figure it out: Her father is Daru, who is kind of baffled but tries to act appropriately.
  • I Work Alone: Suzuha dislikes asking others for help, and will not reveal her own problems to anyone unless absolutely necessary. Even then she'd prefer to go at it alone instead of dragging anyone else in with her, unless it's vital to her mission as a whole.
  • Jerkass to One:
    • In the original visual novel and anime adaptation, she starts out friendly and chipper to everyone, but is intensely hostile towards Kurisu until several chapters later, due to the latter's contribution to SERN's time machine research in her timeline. In fact, just mentioning Kurisu by name is enough to make her absolutely leery.
    • Her version in Steins;Gate 0 is still a good person to everyone, but she can be very harsh towards Okabe at best, outright antagonistic at worst. Justified in the fact that she's lived through World War III, her mother, Yuki died protecting her from an enemy drone is the worst traumatic part she had to bear with and is aware that Okabe's inaction will cause said Bad Future. But although Daru is there for her out of strong concern, she warms up to Okabe.
  • Kid from the Future: She's Daru's daughter from the future. When he asks her who is her mother, she decides to keep it a secret.
  • Little Miss Badass: She's very physically fit and calls herself a warrior, which Okabe refines to Part-Time Warrior. When Moeka attacks on the 13th, Suzuha is the only reason they make it out okay when she charges in and attacks the SERN operatives all by herself.
  • Ms. Exposition: Due to being from the future, she has a tendency of explaining the background science and future events to the rest of the cast.
  • New Job as the Plot Demands: Whenever she's not working at the Braun Tube Workshop, Suzuha would take on various odd jobs to earn more money. In fact, she's held enough jobs to give Moeka herself a run for her money, having worked as a nightwatcher and a festival stall clerk to name a few.
  • Nom de Mom: She uses her mother's maiden name. Though after traveling back to 1975, she starts using her father's last name Hashida instead.
  • Relatively Flimsy Excuse: In 0, Beta Suzuha pretends to be Daru's sister while living with him.
  • She's Got Legs: Understandable due of her athletic background, Okabe can't help but sneak glances at her legs.
  • Shipper on Deck: She's one for Daru and Yuki in Steins;Gate 0 for the obvious reason of wanting to be born.
  • Stepford Smiler: She's genuinely pretty friendly, but she's also hiding trauma and anxiety regarding La Résistance and never knowing her family.
  • Strong Family Resemblance: We finally see her mother in Steins;Gate 0. Unsurprisingly, Suzuha looks nearly identical to her. They are even voiced by the same person, in the same scenes, and talking to each other at several points.
  • Totally Radical: In-universe. She uses "Oha!" as a greeting, which has been long outdated in Japan since 2000. It's about as awkward as using "Wazzaaaaap!" in this day and age.
  • Tragic Keepsake: A small, gold pin that belonged to her father. In the epilogue, Okabe copies the design to make eight badges, one for each member of the group.
  • The Ugly Guy's Hot Daughter: Her father turns out to be the fat otaku Daru. She surely got her looks from her mother.
  • Wacky Parent, Serious Child: In 0, Beta Suzuha has this dynamic with Daru. She hates seeing her future father acting like a perverted otaku when he should be working on building a time machine.
  • Your Days Are Numbered: Like several other characters, the day she will die is set in stone, but it's a little odd in her case. She'll travel back in time and then live until around the year 2000, at which point she'll commit suicide or die from an illness.

    Tennouji Yuugo / Mr. Braun
Voiced by: Masaki Terasoma (JP), Christopher Sabat (EN)

A CRT-TV store owner, and Okabe's landlord. Though a large, imposing man, Yuugo is a doting father towards Nae and wishes to shield her from Okabe's... eccentric activities. He is referred to as Mr. Braun due to his love of braun tubes. Though gruff, he rather likes Okabe.

  • Bald of Awesome: With his physique and shaved head, he's definitely designed to have a manly look.
  • Better to Die than Be Killed: In some of the later worldlines explored SERN will dispose of him because his group successfully discovered an IBN 5100, but he chooses to hide Moeka's involvement and then commit suicide.
  • Bruiser with a Soft Center: He's big, irritable and threatens Okabe frequently, but he cherishes his daughter and actually likes Okabe.
  • Covert Pervert: When Suzuha distracts him with her 'seduction' technique by taking off her jacket and attacking his face with it, Okabe turns on the 42 inch TV so the lab can use the Microwave Ophone. When he reenters a moment later, he expects to be punished severely... but Mr. Braun thought it was pretty kinky and doesn't mind at all.
  • Cranky Landlord: With Okabe for a tenant, it's forgivable, but he tends to threaten to hit Okabe or raise his rent frequently.
  • Dark and Troubled Past: In his youth, he was homeless and lived a miserable life, though a kind and reclusive woman named Suzu helped him out and earned his complete and unshakable gratitude. When SERN offered him a job as a hitman "Rounder," it turned his life around, but came at the cost of his freedom. If you read the spin-off manga, Braunian Motion of Love and Hate it gets worse when SERN discovered his betrayal to save Suzu out of gratitude after they told him as a Rounder to kill her and punished him by having either his wife, Tsuzuri or daughter, Nae be taken away to be turned into Jellyman experiments subjects which Tsuzuri complied to do it for Yuugo and Nae's wellbeing which is fulfilled and severely traumatized him when his Rounder superior showed her corpse to him as an example which worsens as Tsuzuri was also pregnant with their second child at that time.
  • Disco Dan: He's a huge fan of CRTs even when HDTVs are commonplace at this point.
  • Doting Parent: His daughter means the world to him.
  • In-Series Nickname: Okabe calls him "Mr. Braun".
  • Jerk with a Heart of Gold: Even though Okabe gets on his nerves, he actually likes him. Double Subverted at the end of chapter 9 when he admits to Okabe and Moeka he's FB, Moeka's rounder superior and 'mother figure', he brandishes a gun to silence them to protect his secret identity which is when he's about to pull the trigger. Okabe mentions Suzu's name to him in anger of dishonoring her memory which Tennouji realizes his actions and Suzu is the same Suzuha from before, he atones for it by committing suicide by shooting his head off literally.
  • Knight Templar Parent: To protect his daughter, he became SERN's subordinate.
  • My God, What Have I Done?: Implied when he discovered Suzu, the woman who gave him a home and took care of him, was actually Suzuha, who despised SERN. His last words are apologizing to her before killing himself.
  • Overprotective Dad: Braun forbids Okabe from talking to, being alone with, or standing in close proximity to his daughter, either to keep her away from his experiments or... other reasons.
  • Sherlock Scan: Demonstrated during Moeka's route in the Hiyoku Renri no Darling spin-off, where he's able to detect Okabe's presence in the former's room just by smelling the air and noticing cup noodle servings for two in the trash. Of course, he only said that to make an antsy Okabe spill his guts himself.
  • Shipper on Deck: He's this in the aforementioned spin-off. Once he's caught wind of Moeka's attraction towards Okabe in her route, he went out of his way to ensure they could have an enjoyable time with each other.
  • Silent Scapegoat: In Mayuri and Kurisu's ending he vilifies himself in front of Moeka to drive her away from him and takes credit (an act that will get him killed by SERN) in order to keep her safe. It doesn't work, though, because either she commits suicide when cut off from him or because a time displaced Nae murders her. When the world wants you dead, it'll jump through whatever hoops it has to.
  • Stepford Smiler

    Tennouji Nae
Voiced by: Ayano Yamamoto (JP), Brina Palencia (EN)

Yuugo's daughter who is good friends with Mayuri. She appears to be slightly afraid of both Okabe and Daru, but gets along well with everyone else.

  • Accidental Murder: In one world line, Nae accidentally kills Mayuri when she attempts to hug Mayuri after catching up to her on the subway platform, pushing Mayuri in front of a speeding train and killing her.
  • Break the Cutie:
    • In one world line, she's accidentally but directly responsible for one of Mayuri's most gruesome deaths. Her expression afterwards sells it.
    • Not to mention the one where she witnesses her father's suicide and her future self time leaps back to kill Moeka in revenge.
  • Cheerful Child: Nae represents raw innocence, the most important part of humanity. Something to be protected.
  • Children Are Innocent: She's very sweet and friendly, though shy around Okabe due to his loud behavior. However, in an alternate timeline, her father commits suicide and Nae swears bloody vengeance against Okabe. She then time jumps back inch by inch and sends herself even crazier before ending up back in her child's body.
  • The Cutie: It is through their interactions with playful, sweet, innocent Nae that many of the characters reveal their soft sides.
  • Daddy's Girl: She and her father are very close and she means the world to him.
  • Demoted to Extra: She briefly plays a fairly large supporting role near the end, but this is excluded from the anime.
  • Drill Sergeant Nasty: Her "Sergeant Clean" persona when directing everyone to help clean Faris's condo in Zero. As Mayuri explains, the bigger the mess, the stronger her powers.
  • Girlish Pigtails: She wears her hair in a cute pair of twintails, emphasizing her childish and innocent nature.
  • Living Emotional Crutch: Mr. Braun has stated several times she is everything to him. It is implied he would have committed suicide long ago if not for his daughter.
  • Missing Mom: Her mother died while giving birth to her.
  • Morality Pet: She keeps her father's anger in check anytime Okabe gets on his nerves.
  • Purity Personified: Courtesy of Overprotective Dad, Mr. Braun, Nae is well kept from the ugliness and idiocy of the world.
  • Revenge Before Reason: In her evil alternate future, an adult Nae kills Okabe, then goes back in time to kill Moeka before slashing Okabe's arm and warning him of what his future holds for him.
  • She's All Grown Up: Appears in Robotics;Notes, which takes place 9 years later, as an engineer for the Japanese Space Program, in a minor but respectable part. Notably, she seems to have mastered Suzuha's martial arts by the time: she even uses some of the same, iconic moves to defuse a similar hostage situation.
  • Strong Family Resemblance: Her grown-up self is a spitting image of her late mother Tsuzuri, complete with ponytail.

    John Titor 
Voiced By: Hiroshi Tsuchida (JP), Patrick Seitz (EN)

A mysterious poster who appeared on @chan. While he says the same things as the John Titor in the real world, nobody remembers the first appearance of Titor and he claims himself that he has not been to the year 2000, though he may go in the future. He's an early source for information, though Okabe is understandably leery about trusting him.

  • Beethoven Was an Alien Spy: John Titor wasn't a troll in the year 2000, nor is he in the present. Bonafide time traveler.
  • Character Name Alias: Named is based off a revolutionary/terrorist hero from the future, though Titor himself doesn't realize where the name comes from.
  • Fish out of Temporal Water: Titor doesn't really get internet lingo, nor a lot of informal speech. He even fails to realize when people are making fun of him.
  • Historical Badass Upgrade: From anonymous forum troll to genuine time-traveling warrior for La Résistance.
  • Historical Domain Character: In as much as "that one forum poster who became an internet meme" counts as a historical figure.
  • You Have to Believe Me!: Averted. Though worried about the future dystopia brought on by SERN, he says he doesn't really care if anyone believes him or not. He never gets excited or overly defensive, leaving his excitement at finding someone who remembers alternate timelines his only real emotional reaction.


FB is the operative in charge of local SERN's rounders in the area. A mysterious character for most of the story, who communicates only by cell phone texts.

  • Adaptational Villainy: Unlike in the visual novel, in the anime he doesn't try to protect Moeka from the fallout. He kills her himself before committing suicide.
  • Broken Pedestal: To Moeka once she finds out FB lied to her and was only using her until she got the IBN 5100.
  • The Dog Was the Mastermind: FB is none other than Mister Braun.
  • Living Emotional Crutch: Moeka is completely dependent on FB, who functions as a surrogate mother figure for a woman who who was on the verge of suicide due to her isolation.
  • The Man Behind the Man: FB is Moeka's supervisor, though the two haven't met face to face since such things are discouraged. This is the closest we get to the true face of SERN.
  • Manipulative Bastard: FB controls at least some subordinates by reaching out to them at their lowest moments and recruiting them into SERN, leaving them almost fanatically loyal. However, he actually does care about Moeka even if he finds her annoying.
  • Parental Substitute: Moeka views FB as her surrogate mother, even though they have never met in person and only communicate through text messages.
  • Pet the Dog: Despite prior claims, he does care about Moeka and tries to orchestrate her survival. It doesn't work, but he tried his best to keep her safe.
  • Punch-Clock Villain: FB takes time to console neurotic employees, no matter how annoying they may be. The villainy isn't really by choice, either, but is simply done so that he can actually provide for his daughter. He didn't want to actually find the computer SERN was looking for.
  • You Have Outlived Your Usefulness: In the anime, he shoots Moeka in the chest after she and Okabe track him down.

    Doctor Nakabachi
Voiced by: Mitsuru Ogata (JP), Kent Williams (EN)

Doctor Nakabachi is a crackpot physicist obsessed with time travel. He is not taken seriously in the scientific community. The story begins with Okabe attending his conference simply to make fun of him for attempting to publish internet conspiracy theories about time travel as though they were true.

  • Abusive Dad: He treats his daughter like crap out of envy that she's far more intelligent and talented than him. In the original timeline, his response to her writing a good research to impress him was to steal it from her and beat her up when she tries to stop him.
  • Ascended Extra: The Spin-off games and Drama CDs go more in depth into his reasons for becoming obsessed with time travel and why he treats Kurisu the way he does.
  • Berserk Button: Two notable ones. The first is when Kurisu calls him out for trying to steal her paper, making him fly into a rage and striking her. The second is when Okabe refers to him as "washed up". During their confrontation, you can see Nakabachi nervous and shaking as he holds the knife, until Okabe throws out the insult, at which point, you actually see him snap as he charges Okabe.
  • Broken Pedestal: He's idolized by his daughter Kurisu who wants to get close to him, but when we see them finally speaking at the end he's a complete ass, blames her for his own failings and loudly announces his intention to steal her work. He's even willing to kill her when she realizes what he's like.
  • Chekhov's Gunman: The man appears at the very beginning of the story, and then becomes completely unimportant until the end.
  • Driven by Envy: His envy of his daughter, Kurisu has severely unbalanced him to the point where he attempted to kill her in the original world.
  • Jerkass: He's a complete asshole, making it easy to ignore him.
    • Jerk with a Heart of Gold: If you count the Drama CD and Linear-Bounded Phenogram. He definitely loves Kurisu by preparing a fork as a gift for her 11th birthday despite that day he upsets her ruining her birthday which resulted in him droving Kurisu and his wife away from him to America. It also helps two of his close friends, Yukitaka and Suzu were his positive influence on him as he wants to build the time machine in dedication to them after their deaths.
  • Laser-Guided Karma: In the True Ending it seems as though he'll get away with trying to murder his daughter to steal her research but then we get a little update: A plane fire destroyed the stolen research and he began ranting and raving, discrediting him further. What's more, he's under suspicion for stabbing Okabe.
  • Miles Gloriosus: He loudly proclaims himself as an amazing scientist when he's actually quite incompetent and no stranger to stealing the work of others, which Okabe calls him out on at the start when he stole research from an image board.
  • Never My Fault: Okabe's internal narration calls him out on this.
  • Nom de Mom: Inverted, his real name is Shouichi Makise, but he changed his name due to his issues with Kurisu.
  • Offing the Offspring: In the original timeline, he tries to kill his own daughter Kurisu to steal her work.
  • Parental Neglect: He keeps a distance from his daughter Kurisu, downright refusing to see her.
  • Pet the Dog: The Drama CDs imply that he treats his daughter terribly because he believes that he can fix their relationship after going back in time once he figures out how to make a time machine.
  • Plagiarism in Fiction: Steals the work of John Titor and begins his research with it. Also turns out that in the original world he attempted to kill Kurisu after she said in shock that he planned to steal her much better time travel research and publish it solely under his own name.
  • The Resenter: To his daughter Kurisu, resenting her for being far more intelligent than him and blaming her for his own failings.
  • Strange Minds Think Alike: His alias as Dr. Nakabachi was originally just like Okabe's title as Hououin Kyouma; a chunni name he used in meetings with his friends.

    Akiha Yukitaka
Voiced by: Taira Kikumoto (JP), Eric Vale (EN)
The father of Faris NyanNyan/Akiha Rumiho, who passed away years before the start of the series. He was close friends with Dr. Nakabachi in their youths and was entrusted the IBN 5100 to by an elderly Suzuha before donating it to the Urushibara family shrine.
  • Curtains Match The Windows: He has salmon-pink hair and eyes, just like his daughter.
  • Disappeared Dad: His absence was commented on by many of the Labmems, who found it strange that Faris never mentioned her dad in detail. It turns out that he had died years prior from a plane crash, and wasn't even around all that much while he was alive, either, due to being buried in his work.
  • Nice Guy: This guy is quite warm, friendly, compassionate and even patient as seen more in the Vermillion Soteria route in the Linear Bounded Phenogram game as Kurisu struggles to help Okabe as he had a mental breakdown over Mayuri's death. Wishing to help Okabe, Yukitaka has Kurisu phone her father and also his close friend, Dr.Nakabachi who's more of a whiny and immature Jerkass Foil but willing to help when Kurisu and Yukitaka as the meditator explains about Okabe's situation.
  • Parents as People: Yukitaka is a loving and doting father for Faris aka Rumiho but he's also a Workaholic who has to go on business trips more often than spending time with her when she was in her childhood. On her eighth birthday, he made a promise to drop out of work to celebrate but goes back on it when he was called back to work, this caused her to resent him by saying she wishes that he was 'dead' which caused him grief when he heard this and took an early flight home to mend their relationship but ironically caused his death when the plane crashed. Faris hearing her words came true is in deep grief and runs her May Queen Nyan-Nyan cafe to cope and given the opportunity to send the D-mail to save her father, she does so but causing difficult complications for Okabe in exchange.

    Imamiya Tsuzuri
Tsuzuri and a young Nae
Tsuzuri is Tennouji Yuugo's late wife and mother to his daughter Nae. She first met a younger Yuugo in his early Rounder days when he stopped a thief from running away with her bag and, despite knowing full well the nature of his work, still opened her hearts and eventually settled down with him. She was killed by SERN as a punishment for her husband, who went against his orders in order to protect an elderly Suzuha, and was jellified in one of their experiments while pregnant with their second child.

    Urushibara Eisuke 
Voiced by: Mitsuaki Hoshino (JP), Robert McCollum (EN)
Eisuke is the head priest of the Yanagibayashi shrine and father of Luka. Together with his son, he plays a side but important role in both the original visual novel and 0, usually as the host or retainer for the current game's MacGuffin.

Voiced by: Minoru Shiraishi (JP), Ian Sinclair (EN)


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