Characters / Girlfriend, Girlfriend

Characters and the specific tropes appearing in the manga Girlfriend, Girlfriend.

BEWARE SPOILERS FROM THE MANGA ARE UNMARKED

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The Mukai Household

In General

• Determinator: Naoya is determined to stay true to all his girls, and they themselves are equally determined to hold on, though for various reasons: Saki doesn't want to lose to the others, Rika just wants Naoya to satisfy her ego, and Nagisa and Shino are more reserved (and willing to stand aside) but develop into wanting to satisfy their desires to be with Naoya.
• Open-Minded Parent: Most of the parents in the story can see that Naoya and his girls love each other and want to make their romance work despite all the odds and are accepting of the harem situation, to various degrees.
• Secret-Keeper: As polygamy is illegal in Japan, all the members must keep things hush-hush. But over time they reveal it to their families/friends, so this applies to the authorities.

Naoya Mukai

Voiced By: Jun'ya Enoki (Japanese), Kevin D. Thelwell (English), Luis Navarro (Latin Spanish)

A boy with a very straightforward and at times blunt personality. He doesn't believe in lying to himself or others, and so will usually say exactly what's on his mind no matter the circumstance. After spending his middle school years asking Saki over and over...and over again to go out with him, she finally says "yes," at the start of their first year in high school.

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• Abhorrent Admirer: How he was regarded by Saki before they started dating due to his incessant compulsion to confess his feelings to her over and over. In something of a twist on this trope, it's revealed that the issue wasn't that she didn't return his feelings, but that he had a tendency to come off stronger than she was prepared to deal with. It also didn't help that he confessed at an inopportune moment or two (such as when she was trying to focus her energy on an upcoming test).
• Book Smart: It takes a lot of work, but when he truly applies himself, he ends up getting a perfect score on his exams (tying Shino).
• Brutal Honesty: An interesting case in that he isn't made out to be particularly rude or insensitive. It's more that he seems to believe that he has a moral obligation to be completely straightforward with whatever he's thinking or feeling at any given time, even if it hurts.
• Character Development:
  • Naoya took what Shino said back at the Hot Spring Inn to heart. Using his time and effort to find a job, spending money to make Saki and Nagisa happy, and trying other ways to make the relationship work.
  • Naoya later come to respect Saki's desire for privacy for their relationships, making sure no one knows beside family members if it comes to it. He was even surprised when Saki was the one who reveal their relationship to the classroom. Even took her aside and discuss if she is really ready about it.
• Chivalrous Pervert: While Naoya is a nice guy he is a little too open with his desires, such as the fact that he really wants to have a threesome one day. That being said, despite having those desires, he will not force Saki or Nagisa into them if they are not ready.
• Cloudcuckoolander: Between his blunt personality, his inability to take a joke, his frequent Insane Troll Logic, and the absolute extreme lengths he will go to in order to solve any problem, it certainly shows he is not exactly functioning like a normal person.
• Drama Queen: Reacts to almost everything in absurdly over-the-top, bombastic, emotion-laden ways.
• Everyone Has Standards:
  • While he admits to not being trustworthy around women due to being, what he considers, two-timing trash, Naoya makes it very clear to Rika that he doesn't want to three-time with just any girl as he doesn't want to hurt Saki and Nagisa any more than he is already doing.
  • Naoya may want to two-time, but he doesn't want to do it behind Saki's back either. Preferring to asking her face-to-face and even getting her permission before doing so.
  • Even though he loves hard working and putting your all into something you're passionate about, Naoya draws the line in missing school work and other healthy activities. Instead of being amazed that Nagisa ditched school to become more of an "ideal girlfriend" for him, he was shocked and worried for her future.
• Heroic Self-Deprecation: Played for Laughs, Naoya will quite often admit that he is untrustworthy around women because he is already two-timing trash.
  Saki: At least he's self-aware...
• Honor Before Reason: Because of his overly serious personality, he absolutely refuses to lie if there's any reason whatsoever to avoid it.
  • The entire plot kicks off because of this. Despite already being in a happy, if eccentric, relationship with Saki, he feels compelled to accept Nagisa's confession and two-time them because he feels that, due to his honest nature, not going out with Nagisa in any capacity would be paramount to him lying about finding her attractive. And what's more, while it establishes him as more of an extremely ditzy Nice Guy than a genuine two-timing asshole, he decides to ask for Saki's permission to two-time her.
  • He also seems to think having his penis surgically removed is a good way to prevent himself from trying anything on Saki and Nagisa.
  • Despite the serious social ramifications they could face, Saki having him promise not to tell, and Minase stating she'd be okay with it, he looks for almost any chance to make their three-way relationship public, even when Saki is literally beating the crap out of him.
• Hypocrite: He often ends up being this, even though it's usually played for humor:
  • The guy has an almost vehement aversion to dishonesty of any kind, to the point that it, combined with Insane Troll Logic, compels him to date Saki and Minase. Yet on the first night he, Saki, and Minase spend together, where the latter searches through Saki's phone history for ideas of how to appeal to her and keep the relationship together before Saki wakes up and catches her red-handed, Naoya is quick to lie and claim that he was the one doing it to protect Minase.
  • When Minase to confesses to him, instead of turning her down on account of him already having a girlfriend, he feels compelled to enter a two-timing relationship with them since he thinks she's cute and attractive, promising to make them both happy. When Rika then makes a similar proposition team, and he admits to also finding her attractive like he did Minase, he starts off rejecting her since he can't date every cute girl he sees (and more fairly, because the two-timing arrangement is already delicate enough as-is). Rika angrily Lampshades this.
  • During the hot springs storyline, when Minase is persistently trying to support Saki in getting closer to Naoya, to the point of running away from him when he persistently tells her not to. During the chase, he ponders if this means she plans to drop out of the relationship with intentions to go out with someone else, prompting him to call her a cheater, which she Lampshades is rich coming from a two-timer. He also repeatedly calls her stupid for trying to be supportive of those she cares about (albeit at the expense of her own wants and needs, which is fair), despite that being exactly what he's been doing the whole series.
  • Averted when it comes to Saki's relationships, as he tells her he would be fine if she started two-timing him and that he would be a hypocrite if he felt otherwise.
• If It's You, It's Okay: He tells Saki that if she ever finds someone else she loves to feel free to two-time as well. True to his word, when Saki says she want to try dating Shino and Nagisa too, he offers her nothing but encouragement.
• Mr. Fanservice: Oftentimes he willingly rends his shirt whenever he is being overly dramatic.
• My Greatest Failure: Ironically, after getting exactly what he wanted, with Saki finally accepting the two-timing relationship in full, Naoya ends up breaking down and crying while calling himself completely useless because despite all his promises in the end he alone could not overcome the sadness of two-timing and it required Saki, Nagisa, and Shino promising to also work hard at making each other happy to finally settle everything.
• Nice Guy: For all his stubbornness, stupidity, and inability to keep his big mouth shut, Naoya's most noble quality is his indiscriminant kindness and respect for hard-working girls who are dedicated to their beliefs. This is what caused him to take a stand for Mirika, a threat to his relationship with Saki and Nagisa, when her father threatened to delete her MeTube account, and therefore all the passion and hard work she invested in creating it. Earn Naoya's respect, and he will go through Hell itself to defend your happiness and dignity; that, plot of a Hiroyuki written Gag-Manga notwithstanding, is why girls continue to flock around a self-admitted two-timer like him.
• No Social Skills: His over-the-top serious nature coupled with his consistent failure to pick up on obvious jokes make it easy to get the impression that Naoya lacks a certain level of social awareness.
• Obliviously Evil: Downplayed. The guy's a completely dense idiot who doesn't and almost refuses to think things through in a rational manner, and is an absolute Determinator in regards to whatever conclusion or decision he makes, such as his decision to date his two girlfriends. Unfortunately, that decision also served to hurt Saki, who has to deal with her boyfriend wanting to knowingly date someone she considers more attractive than her. This is something Naoya understands and tries his best to make sure Saki is comfortable in the relationship, and make sure he still loves her despite having another girlfriend.
• Ship Tease: With Shino especially after she confess her feelings. During their study session, Saki, Nagisa, and Rika can see that the two of them have been growing closer to each other, with Naoya being comfortable around Shino. Even during their date, Naoya states he wouldn't mind doing things with Shino if Saki allows it.
• Understanding Boyfriend: For all his faults, he does understand his girlfriends have limits and tries his best to make the situation more comfortable, despite how extreme his actions can be. When Naoya finds out that Nagisa has been feeling nervous about her future, he tells her that he understands if she wants to take time and that if she wants to go to culinary school, he will gladly support her.
• Why Did It Have to Be Snakes?: Probably not helped by his tendency to overthink things, but he really hates flying.
• Will Not Tell a Lie: He takes honesty very seriously, to put it lightly. The only exception we've seen to this so far is when he told Saki that he was the one going through her phone in order to protect Nagisa. It's unclear whether this is a small case of Characterization Marches On, or if this is simply a rare exception that he was willing to make, seeing as he didn't resort to lying in similar situations when it could've saved him and the girls a lot of trouble.

Saki Saki

Voiced By: Ayane Sakura (anime, Japanese), Ayana Taketatsu (PV), Brittany Lauda (English), Polly Huerta (Latin Spanish)

Naoya's childhood friend and girlfriend at the start of the series. A cheerful girl with a lot of energy. Saki tends not to sweat the small stuff, and whether it's a good thing or not, she tends to go with the flow.

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• A-Cup Angst: She constantly worries that Naoya likes Nagisa and later Rika more than her because they have much bigger boobs.
• Ambiguously Bi: On the surface, it seems like her attraction to guys is clearer than her attraction to girls, since she's in a relationship with Naoya and notably reluctant to go along with him dating another girl. However, on closer inspection, one could make a strong case that it's actually one of those rare instances where it's the straight part that's more in question. Saki quite often shows a very strong attraction to other female characters and even at times sexual desire. On the other hand, the only boy she shows any attraction to is Naoya, and while she does show a strong desire to do sexual acts with him, she also has sometimes forgone furthering their relationship, such as trying to get an intimate kiss with him, but then actually forgetting about it when the time comes. At one point while extremely drunk she tries to have sex with Naoya, when Shino asks if she can watch, Saki decides that Shino should join them. Chapter 132 finally throws any ambiguity out the window when after watching Nagisa and Shino both making out with Naoya she decides she too wants to try dating the girls and three time as well.
• Character Development: While Saki isn't happy that Naoya started the two-timing, she begins to grow and care a lot about Nagisa, seeing her as a secondary best friend, behind Shino. Saki even made Shino apologize to Nagisa for kissing Naoya before she could. And later in the series, when asked how she feels about the two-timing now, Saki revealed that while she doesn't like it, she doesn't hate it either.
• Clingy Jealous Girl: She's hyper-vigilant to any sign that Naoya may be falling for another girl, to the point of becoming violent towards him when he revealed he might like someone. Something of a Justified Trope, as there aren't many people who would respond positively to the idea of their partner dating another person. She's constantly worrying that Naoya's either going to decide that he prefers one of the other girls and leave her, or that he'll want to add even more partners into the mix. She does, however, calm down as the series goes, as Saki begins to trust Naoya more often after showing his resolve.
• Covert Pervert: Although Saki desperately tries to appear otherwise, it is clear that Saki is a massive pervert. From openly lusting after Nagisa to secretly searching up ways to initiate sex with Naoya. Notably, when Naoya abstains from having any sex with his girlfriends, Saki is very obviously disappointed by this, which even Naoya himself notices. Also, all of her plans to get closer to Naoya involve basically seducing him or trying to entice him with sex.
• Does This Remind You of Anything?: In the anime, any time Saki's strong sexual desires are shown, such as when Nagisa looks through her search history, the scene is accompanied by the sound of a loud mewling cat, alluding that Saki is an animal in heat.
• Double Standard: Abuse, Female on Male: Her violence towards Naoya is generally Played for Laughs, but often use it when he's doing something stupid that would expose their relationships.
• Eating the Eye Candy: When taking a bath with Nagisa, Saki takes a moment to really appreciate how pretty the other girl is.
• Entertainingly Wrong: Twice Saki has assumed she was getting a love confession from a girl, Shino and Nagisa to be exact, only for it to turn out they were either talking about someone else, or meant it platonically, both times she is visibly disappointed.
• Extreme Doormat: Played With, while Saki has and will tell Naoya no, Naoya's super persistence means that eventually he can always wear her down into accepting. Shino later says that Saki is a very go-with-the-flow kind of person and gets worn down easily.
• Gamer Chick: Gaming is one of her main hobbies. In fact, one of the first things she does in order to get along better with Nagisa is inviting her to play a mobile shooter together.
  • Similarly, her first attempt to make friends with Shino had her buying a second gaming console so that they could play together.
  • When she later tries to get Mirika to help her become a pro-streamer (so she doesn't have to study) the group finds out that, unknown even to herself, Saki is already a pretty famous gamer due to winning multiple online tournaments, and in less than a few minutes into her collab with Mirika she garners over 10 thousand followers.
• Goal in Life: Played for Laughs. Saki, not wanting to study, decides she wants to be a video game streamer like Mirika. And surprisingly enough, she already has tons of followers who are willing to join her channel. She even wrote down Streamer as her first choice in a career.
• Harem Seeker: After coming to terms with the two/three timing and watching both Shino and Nagisa make out with Naoya, Saki decides that she wants to two/three time Naoya with Shino and Nagisa as well. Later after inviting Marika to bathe together after Marika became the 4th girlfriend Saki starts groping her, when this freaks Marika out Saki declares that all of Naoya's women are her women too.
• Hidden Depths:
  • Not shown a lot, but Saki has been mentioned to be a talented sport athlete as she plays basketball a lot during school activities.
  • Saki is such an amazing gamer that other online gamers took notice of her and immediately follow her on her new channel.
• Hypocritical Heartwarming: After witnessing Shino's confession the first thing she does is get mad and threaten violence to Naoya, for turning her best friend down, when in the past it was his refusal to outright reject people that caused her ire.
• Hypocritical Humour: Despite all the accusations she places on Naoya as a pervert, Saki herself is often shown to be far more pervertedly minded and when drunk offered a threesome with Shino, even though earlier in the story she had angrily accused Naoya of wanting one.
• I Want My Beloved to Be Happy: While she angsts over the thought of two-timing quite a lot, ultimately the thing that makes her decide to fully accept is the realization she has come to love Nagisa as a friend too much to want to see her sad, even if it means getting Naoya all to herself. This is the followed up with her insisting that Naoya take Shino as a third girlfriend stating it is very important to her that Shino be made happy as well.
• If It's You, It's Okay:
  • Zigzagged, but the relationship between her and Nagisa can be best summed up as this. While Saki was initially against the two-timing and saw Nagisa as a rival, as the series went on, she began to see Nagisa as a somewhat secondary best friend and defends her when her feelings are hurt.
  • Not fully stated, but unlike with Rika, Saki is far more relaxed with Shino being with Naoya than she was with Nagisa or Rika. Even though she didn't accept Shino's desire to be Naoya's girlfriend, Saki isn't against it like she was at the beginning of the series. After Saki once and for all accepts the two timing relationship this culminates with her almost immediately pushing Naoya to accept Shino as his third girlfriend.
• Insecure Love Interest:
  • Not only does her boyfriend want to date another girl with her full knowledge, but said girl is so much better and more attractive that even she seems to be falling for her. Naturally, this is very stress- and paranoia-inducing, to the point that her main aversion to making the relationship public is that she is worried that everyone will think that he doesn't love her anymore.
  • This, however, begins to fade as the series goes on. While Saki is still not fully on board with the two-timing, she did tell Naoya that she comes to know for a fact that Naoya will always love her, no matter what. It grew to a point where she was the one who told the classroom about their relationship and remain somewhat confident that Naoya wouldn't do anything with Rika on their date. Eventually this flares up big time in the final arc, where Saki definitively breaks up with Naoya because she feels the pain of two-timing overweighs the joy she felt from his love and getting to know the other girls.
  • Eventually she tries to get past this by asking Nagisa and Shino to kiss Naoya in front of her so she can get used to it. Instead she gets jealous...of Naoya, asks Nagisa and Shino to kiss her instead, and declares that she wants her own harem of cute girls.
• It's All My Fault: When she helps defend her relationship to Naoya's mom, Saki mentions that she "made him wait" for 10 years and wants to return his passion. Those ten years were mostly spent not liking him romantically and not encouraging him to continue pursuing her, so she didn't lead him on at all but heavily believes she did.
• Lazy Bum: To her own admission, Saki isn't very good at chores and tends to laze around waiting for food and playing video games. When realizing this, Saki tries to help around the house, but fails due to her easy-going nature and lack of attention.
• The Nose Knows: During the fireworks festival, Saki is able to tell that Naoya had a run-in with several girls, one of whom she never met, simply because she always knows the smell of beautiful women.
• Not So Above It All:
  • Despite her best attempt to remain the level-headed one between Naoya and Nagisa, Saki can get easily distracted by things she likes and emotional to Nagisa's cutest.
  • In a flashback, Saki is shown to be persistent to almost Naoya level in befriending Shino despite how the latter view friendship with someone like Saki unneeded. Saki even stated that she’s like this with cute girls.
• Psychological Projection: It's heavily implied that Saki is the most dirty minded of the main trio, and that this is the reason that she's so quick to assume lustful intentions on the part of Naoya and Nagisa. In fact, a couple of times when asked where she came up with some lewd accusation she straight up just says it's what she would do.
• Repetitive Name: "Saki" is both her given name and her family name, though they're each written with different kanji. This was invoked by her parents, since they thought a name like that would be cute.
• Repressed Memories: Played for Laughs Saki somehow was able to forget and block her memories of seeing Naoya (really Nagisa) looking through her phone and found her search history.
• Smarter Than They Look: Despite her laid-back attitude, Saki can manage to get better good grades by doing an all-nighter a day before the test.
• Top Wife: The gang isn't married yet, but she still functions as this. Naoya can't let another girl into the harem until he gets her say-so, the whole thing hinges on her being happy with the arrangement, and the final arc has her explictly say that the harem is as much her harem as it is his, since she wants a group of pretty girls to fall in love with too and gets to grope them as much as she pleases.
• Tsundere: A mild case, but she is not nearly as comfortable as expressing her emotions (especially in public) as Naoya is and because of this she will sometimes fall into stock tsundere behavior.
• Verbal Tic: In the English dub, she frequently peppers her lines with the word "dude."
• Vocal Dissonance: Saki's Japanese performance by Ayane Sakura is made all the more hilarious by her ability to switch her voice from high pitched and girly when happy to gravelly and masculine when enraged, and right back at the drop of a hat.
• What Is This Feeling?: After Shino confesses her love for Naoya, it's pretty obvious Saki has no idea how to feel. On the one hand, she wants Shino to be happy, to the point of even being upset Naoya rejected Shino's confession. On the other, she now has another romantic rival. It takes her a while to process these feelings enough to allow things go as is, but didn't give an answer if she would be fine if Shino become Naoya's third girlfriend.
• Womanchild: Even though she tried, Saki can be a little childish at times. Not knowing how to clean up after herself, wanting to play video games all day, easily forgetting and getting distracted by things she likes, and having to be scolded into studying by Naoya and Shino.

Nagisa Minase

Voiced By: Azumi Waki (anime, Japanese), Ayane Sakura (PV), Madeleine Morris (English), Itzel Jaramillo (Latin Spanish)

Naoya and Saki's classmate who confesses to Naoya on her introduction. She is a nice somewhat meek girl who was inspired by Naoya's dedication to Saki to try and better herself.

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• Ambiguously Bi: While not to the level of Saki, Nagisa has at least shown that she doesn't mind the idea of a threesome, though only if it was something Naoya wanted. Overall she is shown to like Saki quite a lot as a friend and has no desire to end the current poly relationship.
• Anger Born of Worry: Chapter 66 of the manga has her putting her foot down with Naoya in regards to his tendency to work his fingers to the bone for the sake of others. She forces him to get some rest, and tells him that she'll be extremely angry with him if he doesn't start taking better care of himself.
• Animal Motifs: Subtle, but on occasion her cuteness will get vocal clues of an adorable puppy.
• Beware the Nice Ones: Nagisa is usually a very nice girl who would prefer if everyone got along, that said she has shown a very manipulative side every once in a while, and has on more than one occasion used blackmail to get what she wants.
• Blackmail: She's resorted to this on a couple of occasions. Usually in the form of taking a picture of her target in a compromising position.
• Book Dumb: She struggles to understand the basic concepts of her schoolwork, and her grades are shown to be abysmal as a result. It doesn't help that she skipped school for months on end in order to prepare herself to confess to Naoya.
• Clingy Jealous Girl: Played With. She comes off more subdued compared to Saki, but she's admitted on a couple of occasions that she'd have preferred to have Naoya to herself. Nonetheless, she's ultimately respectful of the fact that Saki started dating Naoya before she did, and does her best not to come between them in any way. On the other hand, she pretty much plays this trope straight whenever Rika enters the picture, openly freaking out at one point because Rika revealed that she'd been visiting Naoya at work when there weren't any other customers around, and attempting to blackmail her when she declares that she's going to sleep in the same bed as Naoya.
• Didn't Think This Through: During the Hot Springs visit, where she tries hiding the relationship by claiming to be rooming with Rika, who followed them there, Naoya abruptly shows up while she's bathing with Rika to take her to his and Saki's room so they can spend time together. While tempted and touched by his actions, she's adamant about not risking the relationship getting outed to Shiho, and in finality she blocks his face with her towel, rushes into the room, and gets changed before leaving. However, she seemingly forgets that Rika, who they went on the trip to get away from, was her roommate and they were both using the bath when Naoya showed up.
• Even the Girls Want Her: She's gotten a bit of this from Saki: fawning over her cuteness, remarking about the size of her breasts, and even outwardly lamenting that she isn't the one dating her.
• Goal in Life: Averted. Due to her learning disability, Nagisa has failed at basically everything she's tried, leaving her completely lacking a goal in life. When asked to fill out her future occupation in school, the only thing she can come up with is "Naoya's Wife." After thinking about it for a minute, she crosses out "wife" and replaces it with "mistress." This, however, changed after having encouragement from Naoya and her mother, now wanting to be a chef and going to culinary school.
• Hidden Depths: Nagisa revealed herself to be an otaku, especially being a big fan of their In-Universe version of Rent-A-Girlfriend.
• High Hopes, Zero Talent: Pretty much everything Nagisa has ever tried ended in total failure, no matter how much time and effort she put into it. As she puts it she had to try way more than everyone else just to be average. Thinking she was the only one out there who constantly failed left her a bit depressed, but then she discovered Naoya and found out that despite constantly failing he never gave up on asking Saki out, for years. Seeing his determination inspired Nagisa, and though it took a while, she was eventually able to better herself. During this time she also realized she had fallen for Naoya.
• If It's You, It's Okay: While this best sums up Saki and her relationship, it's not very clear whether Nagisa has desires to date her. Unlike Rika, Nagisa is fine being in a three-way relationship with Saki and Naoya, but most likely did it just to be close to the latter. Nagisa, however, begins to form a close friendship with Saki, seeing her as a best friend and even helps her out several times in romantic pursuit.
• Insecure Love Interest: While she's all for the three-way relationship, it does bring her a share of woes. Since she's essentially inserting herself into Naoya and Saki's already established relationship, she's paranoid that any screw-up could potentially lead to them wanting to call it off and go back to dating each other, such as her Book Dumb nature. She outright admits to Saki that she feels that going along with it is the only possible way she can get a chance with Naoya. This, however, begins to slowly go away with the encouragement of Naoya and Saki that she has her right to be the former girlfriend.
• Love Makes You Dumb: Her feelings for Naoya are full of this. First, she falls for him as she was enamoured by his Determinator status, since it motivated her to work hard and pass her entrance exams... but said status was displayed to her via his earnest attempts at confessing to Saki. Then, in hopes of swaying him to go out with her instead, she temporarily dropped out of school to "train" to be the perfect girlfriend, which kind of defeats the purpose of her passing her entrance exams in the first place.
• Muscles Are Meaningless: She doesn't look it, but thanks to her insane training regiment, Nagisa is ridiculously strong, incredibly fast, and has a bottomless well of stamina.
• Nice Girl: For the most part, she is a kind and modest person who just wants to get along with everyone.
• Sacrificed Basic Skill for Awesome Training: She spent months training her body physically while also teaching herself how to cook in preparation for becoming Naoya's girlfriend. She spent so much time and effort that she had very little time for anything else, such as school work and so she has the worst grades in her entire class.
• Smarter Than They Look: While she remains Book Dumb compared to everyone in the cast, Nagisa is surprisingly pretty clever in scenarios that call for it. Figuring out Mirika's secret identity, how to stop Shino from bothering Naoya, and sending a message to get Rika away from them.
• Supreme Chef: She spent months teaching herself to cook in order to woo Naoya, and her efforts paid off, as her cooking is always described by the other characters as being magnificent.

Shino Kiryū

Voiced By: Rie Takahashi (Japanese), Elizabeth Maxwell (English), Gabriela Gris (Latin Spanish)

Saki's best friend. Shino is an intelligent young woman with a serious personality. After discovering Naoya, Saki, and Nagisa's relationship she greatly disapproves of it and tries to end it.

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• Accidental Pervert: Shino repeatedly ends up in sexually compromised situations with Naoya, often to the point where it seems to be physically impossible. Notable in that she gets the blame for this rather than him, including by her flustered self who wonders why this always happens to her.
• The Ace: She's shown to excel with her schoolwork and sports, and claims to be good at pretty much everything she tries.
• A-Cup Angst: She has an even smaller bust than Saki. She claims not to care about it, but she wasn't exactly happy with Saki for pointing it out when they first met. She also points this out to Naoya at one point in a rather disparaging fashion.
• Adaptational Early Appearance: In the manga, she didn't appear until chapter 20, didn't have a major role until chapter 25, and her name wasn't revealed until chapter 27. In the anime on the other hand all of that happened in the first episode.
• Anguished Declaration of Love: In chapter 88, in front of Saki and Nagisa as well, Shino in tears finally confesses her love to Naoya, who immediately turns her down.
• Ambiguously Bi: When drunk off a ton of alcoholic chocolates Shino asks if she can watch Naoya and Saki (who is also very drunk at the time) have sex, Saki then asks if Shino would like to join them, which Shino is very receptive of, though nothing actually happens.
• Book Smart: Easily the most prominent example in the main cast, as her grades are shown to essentially be perfect. A panel from Chapter 42 even suggests that she's consistently ranked at the top of her class. It is eventually revealed that she is the top-ranked student in all of Japan.
• Cannot Spit It Out: In contrast to Hoshizaki. Early on at least, she tries to ignore her feelings for Naoya by trying to get him to only date Saki.
• Covert Pervert: She seems to be the most sensible out of the main cast and as something of a bookish snob, but she's also the one willing to go the furthest with Naoya showing little problem getting naked and sexual with him, and at one point she asks if she can watch Naoya and Saki have sex.
• Even the Girls Want Her: Saki is shown a few times to heavily lust after Shino like she does for Nagisa. Unlike with Nagisa though, Saki is unable to keep her hands off Shino and frequently rubs her chest.
• Foil: To Mirika. While Mirika is an open homewrecker-to-be who doesn't give a hoot who she hurts in her attempts to steal Naoya, Shino is constantly worrying about Saki's feelings but still desires to monopolize Naoya.
• Full-Name Basis: How she addresses Saki. It's implied that this could be because Saki introduced herself as "Saki Saki" to Shino, who probably just assumed that this was her first name.
• Hidden Depths: Like Saki, Shino is on the same basketball team as her and is a very capable athlete.
• It Was a Gift: The purple ribbon she always wears was a present from Naoya. She treasures it to the point she dives in to retrieve it after it falls into the sea, resulting in them getting stranded on the island.
• I Want My Beloved to Be Happy: While she still clearly wants to date Naoya, she says that she'll step aside so that Saki can enjoy her relationship with her boyfriend and Naoya can be happy with someone he loves. Mirika thoroughly demolishes this mindset, as when it comes down to it she's still secretly trying to seduce him and hoping that Naoya will come to her without an active effort. After eventually coming clean about her feeling she still doesn't want to interfere with Saki's relationship and hopes that after Naoya has fulfilled his promise to make Saki and Nagisa happy she will be allowed to join their relationship.
• Jerkass Has a Point: She's rather aggressive about it - and not helping matters if her also falling for Nyoha, despite her stance against his situation - but most of her points against Naoya's two-timing aren't exactly wrong. Including things such as: social stigma, the law against marrying multiple women, how difficult it'd be to support a family with two wives and the possible children they'd have, whether or not the parents would accept it, and the chance of making either of the involved parties Insecure Love Interests, the last of which is actually right on the money. After the inn's incident where she'd stated all the above, Naoya comes to realize she had a point and aims to not only be a better boyfriend, but to find a job and hope to discuss their relationship with their parents someday.
• Jerkass Realization:
  • After witnessing Saki tearfully kiss Naoya, Shino realizes how much she had been underestimating the two's relationship and that while she didn't mean to she was actively trying to hurt her best friend.
  • After confessing her love for Naoya in front of everyone, Shino later apologizes to Nagisa in full Dogeza style for the way she had been treating the girl and admitted most of her hostility toward Nagisa was based off jealousy.
• Only Sane by Comparison: Easily the sanest character in the story, but not by much. She called out Naoya on pretty much everything, from pushing Saki into accepting his proposal, to calling out all the legal problems a threesome relationship would have. She is also quick to call everyone else out on their insane naivete as well. However, while she doesn't exactly approve of the poly relationship, she still subconsciously takes advantage of it because she feels it's the only way she can get romantically close to Naoya, she lies about any attempt she makes to Saki, and there have been plenty of occasions that show she's trying to catch his attention (like deciding to stay at his house or wearing lingerie during her designated sleep with him).
  • Interestingly, when Saki confesses to the entire class about the exact nature of their relationship, a classmate calls Shino the craziest one.
• Polyamory: After she confesses her love for Naoya, she declares that she still hasn't given up and will not only fully support Naoya's two-timing, but after he has successfully made Saki and Nagisa happy she wants to join the relationship.
• Prim and Proper Bun: She wears her hair in a bun, emphasizing her serious and straight-laced personality (at least compared to everyone else).
• Psychological Projection: Because of her crush on Naoya, Shino was convinced that with Naoya and Saki being a normal couple, she could get over him. However, when she learned Nagisa was also the picture (and thus there was room for her crush, though she didn't want to admit it), she became desperate to cling to said perception, thinking that getting things "back to normal" was the only way forward while also being subconsciously jealous. As such, a large part of her hostility toward Nagisa was the belief that she's "heartless" for getting in their way, and couldn't understand how she didn't feel guilty about it all when the reality is anything but.
• Relationship Upgrade: With not only Saki's permission, but insistence, she becomes Naoya's third girlfriend in chapter 131.
• Shameless Fanservice Girl: Initially this wasn't the case, but later on she developed a degree of such. While initially embarrassed, she usually has little issue stripping in front of Naoya, and is generally not concerned if he accidentally sees her naked. She claims due to her small breasts that she doesn't have much worth hiding anyways.
• Shipper with an Agenda: She is best friends with Saki, but she has feelings for Naoya. In order to give up on the latter and avoid hurting Saki, Shino aggressively ships the two together.
• Supreme Chef: Not to the same level of Nagisa's cooking, but Shino is shown to be a capable chef. Able to cook delicious, but healthy meals and at times, sweets. Impressive enough that Nagisa took notes to become a better chef.
• Took a Level in Kindness: After confessing her love and making a resolve to become Naoya's girlfriend Shino becomes a lot happier, relaxed, and kinder to the other characters.

Rika Hoshizaki

Voiced By: Ayana Taketatsu (Japanese), Megan Shipman (English, Season 1), Bryn Apprill (English, Season 2), Lili Vela (Latin Spanish)

A girl who upon discovering Naoya, Saki, and Nagisa's threesome relationship decides she wants to be part of it too. While at first she was only mildly curious, she slowly falls completely in love with Naoya. In her personal life she is secretly a pretty popular MeTuber.

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• Abduction Is Love: One of her many attempts to get Naoya to agree to date her; ironically, this is the one that comes the closest to working as it finally convinces Naoya that just ignoring Rika isn't going to work anymore.
• Abhorrent Admirer: Played With, Naoya has acknowledged on several occasions that Rika is a very attractive young woman most people would love to date, but he still rejects her because he feels that he is already pushing his luck with two-timing Saki and Nagisa. But it's also played straight in that he often expresses annoyance and frustration with her adamant refusal to leave him alone.
• At Least I Admit It: She thoroughly mocks Shino in Chapter 72 for her Shipper with an Agenda attitude, and fully admits that she'll never see her as a romantic rival if she doesn't admit that she wants Naoya to herself like Mirika does.
• Because You Were Nice to Me: What gets her to actually fall for Naoya is him, once again defying common sense and reason since they were trying to get rid of her, standing up to her father and stopping him from deleting her MeTube account in disgust, defending her Determinator status and how much effort she put into it.
• Big-Breast Pride: She takes a lot of pride in her G-cups.
• Buxom Beauty Standard: She has the largest bust compared to the other three girls, sporting a pair of G-cups. At least half of the harem is embarrassed by their smaller breasts, especially Saki who sees Mirika's chest as a very strong point in her favor.
• Cool Big Sister: We don't see it often, but Mirika is very proud of her little sister, especially her talent as a MeTuber.
• Cute Little Fangs: She's got two of them.
• Deal with the Devil: With her being the devil, Naoya strikes a bargain with her after realizing that he can't ignore Rika and hope she goes away. The deal is Naoya will no longer deny her advances, she is free to do as she wants, just short of sex, but if after 5 months Naoya still doesn't love her she will give up on him. She also blackmails Shino into helping her by threatening to tell Naoya and the other girls about her feelings for him.
• Didn't Think This Through: A lot of Rika's plans end up this way, but she manages to make them work by sheer determination.
• Dogged Nice Girl: Of the spectacular displays variety. She consistently flirts with Naoya at every chance and consistently acts nicely toward him to get him to like her. Also overlaps with Rejection Affection. Naoya is not amused by this.
• Entitled Bitch: Due to her MeTuber fame and pride, she initially believes that Naoya would fall for her on the spot. When she saw that it was not happening, she goes into overdrive to force him to love her.
• False Rape Accusation: Tries to claim that Naoya was assaulting her when he was trying to keep her from going to his house. She uses this trick a number of times afterwards to both make the other girlfriends disgusted with him to the point of breaking up (which never works) and to titillate Naoya (which also doesn't work, since she kills any momentum she might have built up by framing him).
• Foolish Sibling, Responsible Sibling: Despite being older, Rika has to be talked down and scolded by Risa, her younger sister.
• Foil:
  • To Nagisa. Both will do and have done anything they could think of to get Naoya to notice themselves, putting all of their resources and talent on the line. Nagisa is Book Dumb but trained in relationship-specific niches in order to win him over, while Mirika is clever enough to use multiple tricks (including money, her body, and things she picked up as a MeTuber) but focuses more on herself rather than on him.
  • Is also one to Naoya, particularly as Determinators and honest people. Once she's realized she's fallen for him, she just won't give up on trying to be with him, much the same way that he just won't give up on making Saki and Nagisa happy. The difference is that while Naoya is open about his determination and honest/nice to a fault, Rika's determination is far more self-absorbed and involves a lot of sneaky tricks.
• Hypocrite: She stalks Naoya despite being afraid of attracting stalkers herself.
• Hypocrite Has a Point: She may be the least liked of the four heroines, but she made some very good points in Chapter 124 when Saki begins ignoring Naoya and the gang after she confesses that she can't deal with the two-timing after all. As much as Naoya is determined to make Saki believe that he could love everyone in the group equally, he has to realize that Saki, the first girl he dated and chased after for years despite multiple rejections, would want to be number one in his heart and would get sad when she realized that he'll never put her above everyone else. She also made a side remark that Nagisa and Shino were never that determined to be his number one for themselves if they decided to accept the two-timing rather than fight for him. Sure, a lot of it was said only to get him herself, but the rant held a lot of weight that left everyone speechless.
• Insane Troll Logic: When she ties Naoya to the bed at Shino's beach house and he points out that what she's doing is illegal, Mirika replies "It is legal if it's done by a cute girl!" with a smile on her face, no less.
• Ms. Fanservice: A lot of prominence is given to her cup size and figure. As such, that is one of the reasons her MeTube channel has kicked off.
• Outdoorsy Gal: Rika loves camping to the point where even when she moves in with Naoya, she still sleeps in a tent in the backyard. She's also a big fan of extreme sports like bungee jumping and whitewater rafting, and eating things like frogs and insects.
• Pet the Dog: She genuinely likes Shino as a friend and despite it not helping her goal of getting Naoya all to herself in the slightest, she helps Shino come clean with her feelings for Naoya.
• Secret Identity: Rika goes by Mirika on Metube and wears a mask when on camera so that no one will know who she really is. Ironically, her reason for doing this is that she is afraid of attracting stalkers.
• Secret-Keeper: Reveals to Shino in chapters 71-72 that she has figured out that Shino is also in love with Naoya, Mirika agrees to keep it secret but only if Shino helps her get alone time with Naoya.
• Stalker with a Crush: Admittedly not a very secretive one, but she does move into a tent in Naoya's backyard without his permission, and after she is finally made to leave, she ends up renting an apartment next door. Granted though, she starts off as more of a Stalker without a Crush since she's pursuing him out of her wounded pride before actually getting feelings for him.
• Womanchild: Rika tends to toss a tantrum if she doesn't get what she wanted.

Families

Risa Hoshizaki

Voiced By: Aoi Koga (Japanese), Rachel Thompson (English), Nycolle González (Latin Spanish)

Rika's little sister who is supportive of her goal of getting Naoya as her boyfriend and being a famous MeTuber as well.

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• Big Sister Worship: Despite the many issues and problems Rika has, Risa looks up to Rika as a talented MeTuber and a kind big sister to her.
• Foolish Sibling, Responsible Sibling: While she looks up to Rika, even Risa knows how insane her sister is and has to act as a big sister and bring her back to reality. Out of the two sisters, she was the only one who took studying seriously.
• Locked Out of the Loop: Until the Camping Arc, Risa wasn't informed about Naoya's relationship with Saki and Nagisa, something Rika forgot to tell her. Predictably, Risa slapped her sister for being so stupid.
• Only Sane Man: Beside Shino at times, Risa is the only one who realizes how crazy the situation is and how dumb her sister is becoming ever since falling in love with Naoya.
• Shipper on Deck: Risa, at first, is in full support of helping Rika get together with Naoya. But she soon stops when she realizes her sister is getting crazy about him and that he is a two-timer.
• What Does She See in Him?: Risa could not believe that not only her sister, but Saki and Nagisa as well, could fall for someone like Naoya.

Mrs. Saki

Voiced By: Ami Koshimizu (Japanese), Kelsey Maher (English), Dolores Mondragón (Latin Spanish)

Saki's doting mother who is fully supportive of her daughter's relationship with Naoya.

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• Amazingly Embarrassing Parents: She is not at all ashamed to ask about Saki's romantic life, much to her daughter's chagrin and embarrassment.
• Doting Parent: Mrs. Saki openly praises Saki's good points and can't believe any reason as to why Naoya wouldn't advance their relationship yet.
• Open-Minded Parent: She is completely fine with Saki moving in with Naoya (helps that they are neighbors) and even gives her daughter chocolates with alcohol in them (3% at least.)
• Shipper on Deck: She is very much supportive of Saki's relationship with Naoya, accepting the idea that she's staying over in his house without the watchful eyes of his parents.

Mrs. Kiryū

Shino's emotional mother who has a hard time accepting Shino living alone.

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• Amazingly Embarrassing Parents: Mrs. Kiryu is not at all subtle about Shino's lack of development.
• Doting Parent: Like Saki's mom, Mrs. Kiryu greatly cares for and loves her daughter, albeit, in a more emotional way.
• Good Parents: Mrs. Kiryu came rushing to the villa when she heard news that her daughter was missing.
• Open-Minded Parent: While she isn't happy about it, Mrs. Kiryu agreed to let Shino live by herself, despite being very saddened about it as her husband said this would be good for her.

Mrs. Minase

Nagisa's worried mother who is concerned over her daughter's future and wellbeing.

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• Birds of a Feather: Despite not being happy that Naoya is two-timing her daughter, she does come to respect him for understanding that Nagisa's future is very important and something that needs to be discussed. Helps that both are over dramatic and scold Nagisa for running away from her problems.
• Drama Queen: Mrs. Minase may have the right to be worried about Nagisa and her future, but her dramatic nature can be almost match up to Naoya.
• It's All My Fault: She blames herself for not being able to raise Nagisa to be capable in the real world and is constantly worried about her.
• Mama Bear: The first thing she does when Naoya reveals about “two-timing” Nagisa is to grab her hand and take her back to her apartment, telling Naoya to never see her daughter again. But she begins to warm up to him after Nagisa explains the situation and she sees Naoya's better qualities.
• Open-Minded Parent: Not to the same level as Saki's mother, but Mrs. Minase comes to understand Nagisa's situation and accepts her desire for cooking and what she sees in Naoya.
• Tears of Joy: Trying Nagisa's cooking brings her to tears. Not just over how good it is, but because her daughter found something she's good at.

Mr. and Mrs. Mukai

Naoya's parents who are often away from home due to their jobs, but trust Naoya enough to be home alone.

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• Bad Liar: Mr. Mukai completely fails at hiding how jealous he is of his son's relationships.
• Henpecked Husband: It's clear who's the head of the family.
• Like Father, Like Son: Like his son, Mr. Mukai has absolutely zero filters and says whatever comes to his mind, especially his jealousy over his son's situation.
• Only Sane Man: Out of all the parents in the series, Mrs. Mukai is the most level-headed person. She listens to Naoya's reasoning and even though she doesn't accept it, she allows her son to prove her wrong. She is also the only one who can control her wild husband.
• Open-Minded Parent: Mrs. Mukai may not accept the two-timing relationship (with Mr. Mukai's reasoning is out of jealousy) she does, however, give Naoya a chance to prove that he is serious about making Saki and Nagisa happy. Helps that she trusts him enough to be home alone for long periods of time. She does, however, have a limit about the idea of four timing.

Mr. Hoshizaki

Voiced By: Tomokazu Seki (Japanese), Ben Phillips (English), Eleazar Muñoz (Latin Spanish)

Rika's father.

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• Boyfriend-Blocking Dad: He tries to take Rika away from Naoya because of his two-timing, but eventually relents and lets Rika stay with him.
• Education Mama: A male variant of this. His pushing Rika to get good grades is what distances him from her.
• Small Role, Big Impact: In his only appearance, he tries to delete his daughter's MeTube channel. Naoya stopping him from doing so is what makes Rika pursue the boy in earnest for the rest of the series.

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