Characters / No Matter How I Look at It, It's You Guys' Fault I'm Not Popular!
aka: Its Not My Fault Im Not Popular


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    Tomoko Kuroki 
http://static.tvtropes.org/pmwiki/pub/images/watamote_tomoko_3177.jpg
Voiced by: Izumi Kitta (Japanese), Monica Rial (English)

The main character of the series, who struggles with becoming "popular", making friends and coping with adolescence. Unfortunately, this is not helped by her social ineptitude and unpleasant personality.

Despite being incredibly anti-social, she craves the companionship and attention of others. She suffers from a raging superiority complex, vivid delusions of grandeur, intense self-loathing, and social anxiety so severe that she can barely get out a sentence when talking to someone she is not intimately acquainted with.

The dark circles under her eyes are genetic (and shared by her brother).
  • A-Cup Angst: It's not apparent as most examples of this trope, but it's there.
  • Adorkable: In spades, when her Jerkass tendencies aren't in play.
  • All Girls Want Bad Boys: Although she doesn't actually hook up with a "bad boy", she seems to be fond of Bastard Boyfriend characters, as evidenced by her enjoyment of a drama CD about Yandere boys.
  • Ambiguously Bi: Has pretty obvious sexual lust for Yuu, as well as being shown enjoying the memory of a stranger's panties. That said, she's constantly trying to get with boys, including her own brother, and she enjoys Otome Games as well as Bastard Boyfriend characters. Amusingly, while thinking about what it would be like to be with another girl, Tomoko thinks that her harassment of Yuu is totally normal. It could be argued that Tomoko has been very confused by all those H-Games she's played. In chapter 51, she sees her lust after Yuu as something natural and normal, and so too her Big Brother Attraction towards Tomoki, but she doesn't actively think about getting with girls the way she does about getting a boyfriend, or see herself as a lesbian... until it's a chance to be popular.
  • Annoying Younger Sibling: Acts like one for Tomoki despite actually being older. According to the volume 5 omake, it was her obnoxiousness that caused their once-loving relationship to turn sour. On the other hand, one What If? omake shows that he would end up disliking her even if she were to remain kind to him.
  • Because You Were Nice to Me: As time goes on and Tomoko finds herself on the receiving end of more Pet the Dog moments, she feels the need to repay the people who show her kindness even if she doesn't really know them.
    • She makes a batch of chocolates for everyone who gave her some for Valentine's Day, like Mako, Yuri, and Ucchi. And she even gives some to Yoshida, despite their dysfunctional relationship.
    • Because Megumi came to her aid a few times in the past, Tomoko congratulates her for graduating high school and even asks the former Student Council President if there's anything she can do for her. She feels rather crushed when she realizes she won't be able to give anything back to Megumi.
  • Butt-Monkey: Any of her attempts to become popular always come out wrong for her.
  • Character Development: Albeit slowly. By her second year, she's dialing down her schemes to become "popular" and noticed by everyone, just aiming to befriend and talk to people. She's also become more comfortable at cafés and other public places. She also doesn't stutter as much when talking to people she doesn't know. However, she's also reignited an old feud with a middle-school classmate who ended up in the same school as her. Interestingly enough, during the second year school trip arc, she gets even more sociable than before. Chapter 116 openly acknowledges that the friendless girl from the beginning of the manga has managed to make some friends.
  • Chronic Villainy: She's never managed to break her bad habit of doing Jerkass things.
  • Clingy Jealous Girl: When it comes to Yuu or her brother, the latter of which she declared if he ever brought home a girl, she would take responsibility and kill her.
  • Conveniently Seated: At first, she seats in the back row seat by the window. When the second semester and Tomoko loses her seat, she lampshades it by commenting about how lucky she was getting "the seat main characters always get in anime and light-novels" in the first period, lamenting that she now has to dwell in an awkward spot, surrounded by people.
  • Cosmic Plaything: She doesn't realize it, which might be a good thing as the truth might plunge her into the pit of despair or worse, since she can't realize why her attempts to make friends are massive failures.
  • Covert Pervert: Played with; since the viewers are always privy to her thoughts, it's easy for us to see that she's very perverted, but most other characters (aside from Tomoki) are unaware of how perverted she really is.
  • Creepy Shadowed Undereyes/Exhausted Eye Bags: Seems to be a family trait; however, Tomoko's habit of staying up late at night probably doesn't help, as she notes before trying on glasses to hide them.
  • Desperately Craves Affection: To the point of making Brother–Sister Incest overtures, with Tomoki none too pleased. Also part of why she's so attached to her only real friend, Yuu.
  • Determinator: Despite the universe doing everything it can to make her give up.
  • Don't You Dare Pity Me!: As shown in chapters 33 and 42, she doesn't like it when others take pity on her, as she feels patronized by this.
  • Dull Eyes of Unhappiness: In addition to being very large and roughly-sketched, her eyes lack a notable sheen that's present in most other characters, illustrating her perpetually dour mood.
  • Eerie Pale-Skinned Brunette: The bags under her eyes only serve to further emphasize this aspect of hers.
  • The Eeyore: She falls into bouts of self-loathing and has a lot of negative thoughts in social situations. Even when she acknowledges that her life got better than how it used to be, such as in chapter 115, she doesn't expect good times to last.
  • Expressive Hair: Sometimes, you can tell how exasperated she is just by seeing how much her hair is flaring out.
  • Expy/Distaff Counterpart: Downplayed very hard. An otaku Loser Protagonist who's a master of Dating Sims and near-zero communication skills? Sounds a lot like a gender-flipped fusion of Keima Katsuragi and Tatsuhiro Satou. But unlike Keima, who's a loner by choice and is perfectly capable of dating real girls in much the same way as fictional ones (given enough encouragement, or coercion for that matter), or Satou, who eventually outgrew his Hikikomori ways, Tomoko repeatedly fails at socializing in real life.
  • Failure Hero/Failure Is the Only Option: Done rather well. She can't do anything right. Every time she has a goal, it's bound to fail or backfire horribly.
    • The few Throw the Dog a Bone moments she gets are usually down to luck and the kindness of others, or when she's not actually trying so hard to become popular.
  • Female Misogynist: Her jealousy leads to a general resentment of other girls aside from Yuu, often viewing girls who are more socially adept than her as "bitches" or "sluts".
  • Foolish Sibling, Responsible Sibling: The Foolish to Tomoki's Responsible.
  • Friend to All Children: She's fond of kids and enjoys their company. This is Played for Drama, since it serves as a reminder that she doesn't have any friends of her own age.
  • Gamer Chick: Effortlessly plays a Pop'N Music knockoff with only a blank stare on her face, not to mention her constant playing of otome games.
  • Gonk: Often, when emotional.
    • There was also the time where she tried to change her appearance, which worked out well until she decided to mess with her face.
  • Green-Eyed Monster: She enjoys the misfortune of others and frequently wishes for horrible things to happen to people that she perceives as having happy, carefree lives. She also does have big green eyes, and calls girls more socially successful than herself, including her best friend Yuu, "bitches", "sluts", etc.
    Tomoko: "If you're not a worthless god, I'd like to see you try and make me happy... If you can't manage that, at least make everyone as unhappy as me. If you can't, it's fine I guess... But I'll despise you forever..."
    • Also why she couldn't get along with Kotomi in middle-school despite being much alike, as she wanted to keep Yuu to herself.
    • As of chapter 97 she seems to have realized that her former classmates who are more sociable than her don't act sociable to spite her, and she doesn't hate them for this anymore.
  • Hollywood Nerd: Mostly averted. She's an introverted shut-in, with the disheveled appearance and complete lack of social skills to highlight it. In a departure from the archetype, she's also not particularly accomplished academically.
  • Hypocrite: She angrily denounces anyone more popular than her as shallow, vapid and selfish, and refers to any girls more sociable than her as "sluts". She's the real shallow and selfish one, who seeks popularity above all else, and proclaims: "Without doing anything, I can get into the pants of the boys for three years!" in the very first chapter. At the same time, she looks down on anyone as unpopular as she is as being losers, freaks and weirdos who are somehow beneath her despite them generally having the same interests that she does.
  • I Just Want to Have Friends: ...and get laid, apparently.
    • As the series progresses, there's a subtle development in that Tomoko's goal moves down from "getting popular" to just "making a friend", and at the very least "talking to people".
  • Ineffectual Death Threat: Frequently wishes death and worse on her classmates for the smallest of offences, like someone apparently taking her umbrella.
  • Inferiority Superiority Complex: While she's rather self-centered and looks down on a lot of people for petty reasons, it's still clear that her self-esteem is actually very, very low.
  • Inner Monologue: Keeps her thoughts to herself more often than actually speaking.
  • In-Series Nickname: "Mokocchi." Only Yuu gets to call her that, though.
  • Ironic Name: Depending on what kanji you spell it with, the name "Tomoko" can mean "beautiful girl" or "wise child", among others. Needless to say, she's neither of these things.
  • It's All About Me: She's a very self-centered person who doesn't have any particular empathy for anyone around her. Thankfully, Tomoko's been growing out of it, acknowledging that even more social people have problems of their own, and is willing to show genuine consideration for others every now and then.
  • Jerkass: Downplayed. In the main series, she can come off as a condescending jackass who can occasionally show humility and self-esteem, although she most often keeps her negativity to herself. However, Tomoki and Komiyama tend to see and feel the more unpleasant side of Tomoko.
  • Jerkass Has a Point: As maladjusted, unpleasant, and warped as she is, Tomoko does raise valid points every now and then.
    • When Akari's friend, Sayaka, confronts her over the former's feelings for Tomoki and her eagerness to see his genitals, Tomoko is correct when she points out it's perverse and inappropriate to say such things in front of his older sister.
    • She accuses Akari and Kotomi of being perverts. While her poor treatment of them is usually uncalled for, she's not wrong, and the latter in particular takes her attraction towards Tomoki to very creepy levels.
    • While it evolves into a nonsensical rant about how all baseball players are smokers and delinquents, Tomoko is correct when she notes that the baseball club gets preferential treatment in how it forces the whole student body to come cheer for its games when other clubs work just as hard for less recognition.
  • Jerkass Realization: In Chapter 97, she admits that she was a horribly judgmental person in her first year of high school, and lets go of a lot of the resentment she feels toward her more social peers.
  • Kick the Dog: Her treatment of her brother when he fell ill was pretty appalling. She tried to lower his temperature and poured hot porridge on his face out of spite, and otherwise annoyed him at every opportunity. This went on to bite Tomoko in the ass when she caught his disease at the beginning of a three-day weekend.
  • Lazy Bum: When left to her own devices, Tomoko would rather just laze around her room, playing video games, watching anime, and surfing the web. When called out on her unwillingness to help around the house by her mother as opposed to her younger but more responsible brother, Tomoko's first instinct is to blame Tomoki for making her look bad.
  • Little Big Sister: She's considerably shorter than her younger brother. Not very unusual given he's only a year younger, but it still highlights her immaturity.
  • Lonely Doll Girl: On occasion, Tomoko will use her plushies to act out her fantasies of a better social life, from envisioning what her time in a school club could be like, to...imagining how sex with Yuu would go.
  • Loners Are Freaks: Her mindset, which she desperately wants to avoid.
  • Loser Protagonist: Though, she tries hard to not be this.
  • Magnetic Hero: As the series has continued, she has consistently shown to be able to attract the interest and attention of pretty much anyone who spends even a small amount of time with her. Even characters who initially display complete indifference to her become obsessed with learning more about her after witnessing her bizarre behavior firsthand.
  • Manic Pixie Dream Girl: She acts as a downplayed version for Yuri. While their relationship is purely platonic and Tomoko is by far the more asocial of the two, she tends to encourage Yuri to try things she wouldn't do otherwise, like make Valentine's Day chocolate for her friends. She's even caused the normally stoic girl to laugh, which Mako has noted she's never seen Yuri do before.
  • Manipulative Bastard: She tries. Dear lord, she tries.
  • Meaningful Name: "Kuroki" can literally mean "black mood". It sums up her character pretty well.
  • Nerds Are Virgins: Several storylines are about Tomoko's lack of experience and sexual frustration.
  • Never My Fault: Zigzagged. She often derides herself and finds faults with her social skills and appearance, but never dwells on it and immediately finds something else to blame for her social failings.
  • Nice Hat: As part of her casual wear, she'll frequently wear a newsboy hat.
  • No Social Skills: Pretty much the entire conflict of the plot is based around the fact that Tomoko's skills leave a lot to be desired. As she begins to socialize more, her complete lack of social awareness causes her to regularly put her foot in her mouth and unintentionally piss off others.
  • Older Than They Look: She's 15 when the manga and anime begin, but she's so short, thin, and physically undeveloped that you'd be forgiven if you thought she was 10.
  • Otaku: Of Otome games. So much that she attempts to socialize in real life with tactics from the games. See the Expy/Distaff Counterpart entry for details.
  • Otaku Surrogate: Downplayed; while she does have interests in anime and video games that male otaku in real life would have, she's also into things that are aimed specifically at girls, such as otome games. Unfortunately, her interests in all the perverted media aimed at otaku only make her more unapproachable and unable to function in social situations.
  • Peek-a-Bangs: Although both of her eyes can occasionally be seen, this trope is largely in play for her through much of the series.
  • Person as Verb: In Chapter 39, she tries to stand out more in her class by performing a wacky introduction during the first day of second year. For her efforts, among her classmates, her name becomes a synonym for doing something exceptionally poorly. Fortunately, it seems to have gone out of fashion by Chapter 42.
  • Playboy Bunny: Dresses as one in a fantasy sequence that's a Shout-Out to Haruhi Suzumiya. She somehow manages to make it look ugly and unappealing.
  • The Quiet One: She once went a month and a half without talking to anyone outside her family — her streak was broken when she managed to tell her teacher "goodbye". In contrast, she tends to be very chatty in her Inner Monologues.
  • Sanity Ball: Tomoko gets to enjoy being the Only Sane Girl whenever she interacts with Akari. The girl's crush on Tomoki, her easily flustered demeanor, and her terrible habit of misreading the situation all combine to turn her into a sobbing, stammering mess. And this goes double whenever Kotomi gets involved, whose infatuation for Tomoki leads her to commit all sorts of craziness as well that leaves her in the same position. Either way, Tomoko is left equally bemused and annoyed by their antics.
  • She's All Grown Up: A page in the anthology reveals that she could grow up to be quite pretty.
  • Shrinking Violet: Combined with No Social Skills, this is the reason she can barely put together a full sentence with anyone she doesn't know.
  • Sibling Yin-Yang: With Tomoki.
  • Sitcom Arch-Nemesis: With Komiyama, whom Tomoko dislikes because she feels that she has to compete with her over Yuu's attention, as well as because Komiyama is romantically and sexually interested in Tomoki, causing Tomoko to be disgusted with her, and, as of chapter 47 of the main story, also because Komiyama admitted that she didn't like Tomoko back in middle school.
  • Throw the Dog a Bone: Overall Tomoko's second year in high school became a lot better and she was actually able to make sort of friends with people.
  • Tomato in the Mirror: Chapter 1: After 5 months trying to convince herself that she's popular, Tomoko literally sees herself at the mirror and admits the horrible truth:
    Now that I look in the mirror after a few years, I see that I turned into some creepy entity!
  • Troll: She enjoys pranking, insulting, or otherwise getting under the skin of people she knows purely for lulz. Tomoki and Kotomi are her favorite targets.
  • The Unsmile: Pretty much every attempt she makes at smiling ends up coming off as looking more like a Slasher Smile. Combined with her Creepy Shadowed Undereyes, the effect is... rather unsettling.
  • Unsympathetic Comedy Protagonist: Her portrayal switches between this, Cosmic Plaything and some combination of both depending on the chapter. She can be very pitiable, but at the same time rather self-centered, condescending (especially to her classmates, though this is restricted to her Inner Monologues and never expressed outwardly) and, in Chapter 33, is shown to be a devotee of schadenfreude. In the spinoff, she's portrayed much more unsympathetically than in the main story.
  • Weirdness Magnet: Tomoko seems to have developed a knack for attracting a lot of oddballs to her, or at least in making people develop their own idiosyncrasies. Yoshida is a short-tempered but oddly innocent teen who's often mistaken for a delinquent, Ucchi has grown progressively more obsessive over Tomoko to the point of stalking her, Kii-chan has gone from a normal girl to a borderline Cloudcuckoolander, and both Kotomi and Akari have become incredibly perverse (and unlucky) in pursuing their mutual crush on Tomoki. Lampshaded in Chapter 116, where Tomoki notes that all of his sister's friends appear to be a bunch of weirdos.
  • Why Did It Have to Be Snakes?: Nothing frays Tomoko's nerves more than attractive boys. Even after her social skills improve enough that she can communicate with strangers without tripping over her words, she still turns into a nervous, stuttering puddle of goo in the presence of hot guys.
  • Wide Eyes and Shrunken Irises: She has this expression a lot.
  • Wrong Genre Savvy: One of the major factors behind her inability to adapt to society is the fact that she tends to "learn" social skills through anime and video games, and mistakes many character interactions therein (including those that are, from an objective viewpoint, downright outlandish) for actual practice, and tries to emulate them in real life, which more often than not only serves to further humiliate her.
  • You Are What You Hate: The reason she despises Kotomi. Both are antisocial and their Only Friend is Yuu. Each one of them believes the other is below her.

    Tomoki Kuroki 
http://static.tvtropes.org/pmwiki/pub/images/watamote_tomoki_7406.jpg
Voiced by: Yuuichi Nakamura (Japanese), David Matranga (English)

Tomoko's younger and more responsible brother. He is a fairly average and well-adjusted person for his age, and treats his sister with the usual level of sibling-related intolerance. Despite this, he does care for his sister and tries to support her when she needs it.
  • The Ace: In comparison to Tomoko, at least. He's mature, reliable, athletic, has a large social circle, and multiple girls that are interested in him.
  • Annoying Younger Sibling: Played with. He does tend to get on Tomoko's nerves, though not so much due to obnoxiousness as due to the fact that he's guilty of such "crimes" as staying home sick while Tomoko has to go to school, having friends who care enough to visit him while he's sick, or cleaning his own room and making his lunch himself (much to their mother's praise - and unlike his sister, and thus making her look bad in comparison). Also inverted, as Tomoki definitely sees Tomoko as his annoying older sibling.
  • Berserk Button: While he always braces himself whenever his sister approaches him, he gets particularly angry at her when she barges into his room unannounced, which is frequently.
  • Big Little Brother: He's considerably taller and older-looking than his older sister. While it's not particularly strange, as they're only one year apart and both teenagers, it emphasizes how down-to-earth and mature he is in comparison to her.
  • Covert Pervert: Subverted. Tomoko constantly accuses him of being Caught With His Pants Down whenever she enters his room, but he's always shown to simply be listening to music, reading a book or sleeping. Likewise, whenever Tomoko accuses him of being attracted to her, he expresses disgust and confusion about why she would even suggest it. Later, when forced to sit down and have lunch with Kotomi and Akari by Tomoko, it's made pretty clear that he simply isn't particularly interested in having a girlfriend.
  • Clueless Chick Magnet: In addition to Tomoko making Brother–Sister Incest overtures, both Kotomi and Akari pine for him. He barely even remembers they exist, remains oblivious to their feelings even after they both blurt out in his presence that they would like to see his dick, and shows no interest in romance in general.
  • Deadpan Snarker: In response to Tomoko's antics.
  • Exhausted Eye Bags: Like his mother and sister, although their mother's are less pronounced.
  • Expy: Of sorts to Kyousuke Kousaka.
  • Face of a Thug: Interestingly, while he has this look, he's still fairly popular at his school, since he seems to have regular friends and two girls bring him the class printout when he gets sick.
  • Face Palm of Doom: When ticked off, he simply grips his sister's head really hard.
  • Father, I Want to Marry My Brother: In a home video their mom found in episode 7, he said as a little kid he wanted to marry Tomoko. He was notably disturbed when he saw this video (also because of how much more affectionate he was towards her).
  • Foolish Sibling, Responsible Sibling: The Responsible to Tomoko's Foolish.
  • Get Out: Practically his Catchphrase, as he says it whenever his sister enters his room without permission.
  • Hidden Depths: Generally comes off as a grouchy loner, though this is almost entirely because we almost only ever get to see him when he's forced to put up with Tomoko's obnoxious antics. On the occasions where we get to see his life outside of his sister, he is shown to be a surprisingly popular guy with a large friend group, multiple female admirers and an active spot on his school's soccer team.
  • I Have No Sister: Exclusively refers to Tomoko as "that girl", even in his own thoughts. This is in stark contrast to when he was young, where he affectionately called her "nee-chan".
  • Jerk with a Heart of Gold: Tends to physically rein in his sister if needed. That said, deep down he is a generally good-natured guy who is shown to be perfectly nice and friendly when dealing with people who aren't Tomoko.
  • Not So Different: Subverted in Chapter 41. Tomoko visits him in his classroom and sees him sitting alone and by himself; this gives her the impression that he is a loner just like her. However, when she visits him later she finds out that he is actually very popular in class and has not only friends but also admirers. Tomoko doesn't take the revelation well.
  • The One Guy: Currently the only major male character. Justified due to Tomoko having problems working up the courage to talk to other girls, let alone guys. This is briefly lampshaded when, after realizing that she has begun interacting with other girls more frequently, Tomoko vows to try to talk to a guy, only to awkwardly barge into Tomoki's room, wave at him and then leave.
  • Only Sane Man: The only major character who is able to completely shut down Tomoko's antics before they escalate even further. It helps that he's willing to get violent with her.
  • Ordinary High-School Student: All evidence points to him having a perfectly normal and fulfilling school life, in contrast to his sister.
  • Perpetual Frowner: He's always wearing a grumpy expression of some sort, at least when around his sister.
  • Pet the Dog: Sometimes he takes pity on Tomoko. Notably, he expresses relief during her second year graduation that she had managed to make some friends by the end of the year. Of course, he also makes a point of noting how all of her new friends seem to be a bunch of weirdos.
  • The Power of Hate: Thinking about various occasions when Tomoko has pissed him off causes him to tap into an Unstoppable Rage that has allowed him to become the star player of his soccer team. In comparison, thinking about the few occasions when the two of them have actually gotten along causes him to be thrown off his game and miss scoring the winning goal.
  • Screw This, I'm Outta Here!: One of his most frequent responses to his sister's wacky antics is staring at her for a few moments and then promptly walking away without even so much as asking what she's doing.
  • Sibling Yin-Yang: With Tomoko.
  • The Stoic: His only emotion is seemingly a perpetually-annoyed calm. Even when he isn't particularly agitated, his expressions remain dour and his speech remains curt.
  • Straight Man: Serves as this whenever he shares a scene with his sister.
  • Strong Family Resemblance: Invoked in chapter 106. Ucchi claims that his eyes and mouth are very similar to Tomoko's, which is how she is instantly able to tell that the two are siblings. While her conclusion is correct, it's not clear how strong the resemblance actually is, as no other character has commented on it.
  • Terse Talker: Even when talking to people that he doesn't hate (as in, anyone other than Tomoko), he still rarely says more than a few words at a time.
  • Tranquil Fury: While he's frequently pissed off at his sister, he only explodes at her when she's being particularly obnoxious. Otherwise he remains fairly stoic when dealing with her.
  • Trigger: Tomoko seems to have become one for him. Most of the time, just thinking about her fills him with a combination of rage and disgust.
  • Unkempt Beauty: Despite sharing his sister's Face of a Thug, he is seen as attractive by girls. This may tie in to the All Girls Want Bad Boys trope.
  • Would Hit a Girl: He's not above lashing out when Tomoko's getting on his nerves (giving her a kick, grabbing her face, etc.). He invoked the other trope one time Tomoko was annoying him. Then when her antics went too far, he had no choice but to strike her into calming down.

    Yuu Naruse 
http://static.tvtropes.org/pmwiki/pub/images/watamote_yuu_8672.jpg
Voiced by: Kana Hanazawa (Japanese), Emily Neves (English)

Tomoko's best friend from middle school, who managed the transition to adolescence far more gracefully than Tomoko. She was originally very quiet and nerdy; however, after moving to high school she dyed her hair, improved her fashion sense and personal appearance, became more outgoing and eventually got a steady boyfriend. Despite changing so much, she remains a kind friend to Tomoko, though she remains blissfully oblivious to how different their social lives are and is unaware of the more unpleasant aspects of Tomoko's personality.

She is the protagonist of the spin-off manga It's Your Fault My Friend's Not Popular, which details her middle-school life with Tomoko from her perspective.
  • Attention Deficit... Ooh, Shiny!: In the final episode of the anime, she starts to chase after a distraught Tomoko out of concern for her but ends up being distracted by a cat.
  • Beautiful All Along: An interesting case where she's introduced after having this already happen to her. Back in middle school she wore thick glasses and unflattering clothing, but was still beatiful underneath them.
  • Beware the Nice Ones: After embarassingly winning a bet in the Christmas special of 2016 Yuu makes Tomoko and Komiyama sing Christmas carols together for an hour.
  • Brainless Beauty: Despite her beauty and kindness, she's oblivious to Tomoko's unsavory nature and has below average grades. In the second Christmas special Tomoko opines that even using Twitter or keeping a blog would be too complicated for Yuu to handle. She also remains oblivious to the animosity between Tomoko and Kotomi until chapter 54 of the main story.
  • Closet Geek: She's currently this, due to her popularity having soared at her high school after she cleaned up her appearance. At one point she says that she's happy that she can still hang out with Tomoko since she doesn't have anyone else to talk to about anime-related things.
  • Cool Pet: In chapter 64, while catching bugs with Tomoko and Kotomi, she manages to catch a rhinoceros beetle. Tomoko and Kotomi comment on its coolness and rarity, and Tomoko convinces Yuu to keep it as a pet.
  • Covert Pervert: One thing she isn't oblivious about is innuendo.
  • Decoy Protagonist: In the spin-off she is set up as the protagonist at first, but the narrative focus eventually moves from her to Tomoko and Komiyama, and the story is mostly about the two's "friendship".
  • Dumb Blonde: Her hair is dyed, but otherwise applies.
  • Erotic Dream: Implied in chapter 7 of the spin-off. Tomoko and Kotomi are pretty delighted by it.
  • Even the Girls Want Her: Tomoko and Kotomi both have pretty obvious crushes on her in middle school and separate high schools have done little to ebb their lust.
  • Foil: To Tomoko, also to Kotomi. She had been, initially, shy like her two friends but was able to overcome it and build a social life, unlike Tomoko. In middle school she already had a hidden natural beauty that drew attention. Most importantly, she has shown negative feelings towards other people the least, unlike her friends.
  • Friend to Bugs: Played with. She doesn't particularly deal well with insects, but when she goes bug-catching with her friends, she insists on letting the critters go when Tomoko wanted to watch them eat each other. She also keeps a rhinoceros beetle she catches as a pet.
  • The Glasses Gotta Go: After taking her glasses off, her popularity soared.
  • Green-Eyed Monster: Surprisingly, in chapter 57! She deals with it in a completely different way than Tomoko, though.
  • The Heart: She is pretty much the only reason Tomoko and Kotomi even talk to each other, and also the only reason they are willing to be civil when they do talk. In chapter 54 she takes an active role to the trope.
  • Innocently Insensitive: Her casual remarks indicating that she has a much more fulfilling social life than Tomoko can hope for, including having a boyfriend, cause Tomoko a lot of distress.
    • Komiyama was also hit with this, in chapter 6 of the spin-off.
    • During Tomoko's, Yuu's and Kotomi's Christmas party in the 2016 Christmas special Tomoko comes up with the idea for the trio to buy one another funny gifts that would be completely useless to the recipient rather than ordinary Christmas gifts. In response Yuu buys Tomoko a pack of condoms. Yuu claims to have thought about it simply as a funny gift, and is embarrassed when Tomoko points out what such a gift implies about what Yuu thinks of Tomoko.
  • Meganekko: Wore glasses in middle school. Still wears them at home.
  • Morality Pet: She was the only person for whom Tomoko displayed any kind of empathy for in the early parts of the manga.
  • Ms. Fanservice: Or at least this is how Tomoko sees her.
  • Nice Girl: Overall, a pretty nice and sweet (if somewhat airheaded) person.
  • Oblivious to Love: Doesn't notice Tomoko's crush on her.
  • Only Friend: To Tomoko (who even admits this in one of her Inner Monologues in chapter 29) in the early chapters, and also to Kotomi in the prequel. Not so much in later chapters, as Tomoko makes a few more friends, while Kotomi befriends a girl named Itou and has a somewhat Odd Friendship with her romantic rival Akari. Even then, Yuu seems to remain the closest friend to Tomoko and Kotomi.
  • Opaque Nerd Glasses: In anime flashbacks, though her eyes are visible in both manga.
  • Otaku: She was this during middle school. Now that she's in high school and has a better social life, she's more of a Closet Otaku around everyone except Tomoko and Kotomi, whom she feels she can be more open about otaku-related things with.
  • Rapunzel Hair: In middle school.
  • Stupid Good: Her niceness can be very high when it comes to her friends. For example, when they were in the pool:
    Tomoko: "If I peed in here, would you pull away from me?"
    Yuu: "I wouldn't. Because we're friends."
  • Thousand-Yard Stare: Whenever she gets upset, she has this vacant look on her face complete with an empty smile that displays no happiness whatsoever. Tomoko thinks she looks like a rape victim this way.
  • Zettai Ryouiki: Type A, when wearing her school uniform and working at her uncle's cafe.

    Kotomi Komiyama 
http://static.tvtropes.org/pmwiki/pub/images/watamote_kotomi_6296.png
Voiced by: Kaori Mizuhashi

One of Yuu's old middle-school friends. She immediately takes a dislike to Tomoko, who sees Kotomi as a rival for Yuu's attention. Unfortunately, Kotomi proves to be just as passive-aggressive and anti-social as Tomoko.

Kotomi is formally introduced in the spin-off manga It's Your Fault My Friend's Not Popular, and later on she is re-introduced in the main series. Kotomi does not appear in the anime as it only adapts stories from before her first appearance. However, she appears in a special OVA, bundled with the Japanese release of the main series's seventh volume.
  • A-Cup Angst: Just like Tomoko.
  • Alliterative Name: Both her first and last name begin with "K".
  • Ascended Extra: She first appeared in Tomoko's flashback to her middle-school years in Chapter 30 of the main series as the third, unnamed girl running the the marathon with Tomoko and Yuu; she's only seen in three frames and has no speaking lines. In the spin-off series, starting with Chapter 2, she is one of the main characters. She then makes her formal debut in the main manga in Chapter 46.
  • Berserk Button: Badmouthing her crush Tomoki, as Tomoko found out in chapter 54.
  • Bookworm: Always shown reading a book during her job as the school librarian.
  • Butt-Monkey: Not only is her crush on Tomoki unrequited, as he barely knows she even exists, but the plots revolving around said crush tend to end with her in some embarrassing situation or otherwise miserable.
  • The Cameo: She makes a short appearance in the OVA that's about a minute long, which constitutes the only time she's ever been animated (and voiced).
  • Covert Pervert: Revealed to be one in Chapter 7 of the spin-off, though she is in denial about it. Also, in chapter 91 of the main series she blurts out that she is interested in Tomoki's dick... in Tomoki's presence, no less. As of chapter 101 she seems to have accepted that this is a part of her personality.
  • Cross-Popping Veins: When Tomoko pisses her off. Which is often.
  • Don't You Dare Pity Me!: If there's one thing Kotomi hates more than Tomoko being a Jerkass to her, it's the rare times when Tomoko actually expresses pity for her.
  • Foil: To Tomoko. She's basically her but more proper looking and with more common sense.
  • Friendly Rivalry: With Akari. They both pine for Tomoki, but so far there seems to be no animosity between the two, and Kotomi actually seems to care about Akari's well-being a bit. Kotomi encourages Akari to be honest about her feelings for Tomoki in chapter 101, and later, in chapter 108, she hesitates whether to tell Akari that Tomoki greeted her, because she didn't want to rub it in Akari's face. Akari, in turn, wanted to badmouth Kotomi when asked about her by Tomoki, but backed off when she realized that Kotomi's feelings for Tomoki are the same as her own. In chapters 112 and 113 Akari is even shown helping Kotomi prepare the Valentine's Day chocolates for Tomoki and it turns out it was Akari who convinced Kotomi to give the Valentine's Day chocolates to Tomoki.
  • Game of Nerds: She's a massive baseball enthusiast who follows the Chiba Lotte Marines with almost religious zeal. Of note is that she knows the make, model, and plate number of every player's car on the team. Chapter 117 reveals that she was once a member of the baseball cheer squad.
  • Green-Eyed Monster: In chapter 83 she is distraught by the revelation that she has a romantic rival who is also interested in pursuing Tomoki (something Tomoko gleefully takes advantage of to troll her).
  • I Am What I Am: While Tomoko's accusations on her fixation with Tomoki's genitals used to be a source of angst, Kotomi has made peace with that perverse side of her and freely admits that she would in fact love to see his dick. As of chapter 101, Tomoko's accusations no longer bother her.
  • Impossibly Tacky Clothes: In a clothes store she hinted an interest for cosplaying. In chapter 79 she looks like the new protagonist of a Final Fantasy game. Averted on the beach trip, because Yuu chose her bathing suit.
  • In-Series Nickname: "Komi-something". Also: "Glasses". Both given by Tomoko.
  • Love Makes You Crazy and Love Makes You Dumb: Tends to lose her common sense and act irrationally whenever the plot involves her crush Tomoki in some way.
  • Meganekko: Is actually a cute girl with glasses.
  • My Parents Are Dead: Has revealed that her father died from an illness when she was five. Yuu gets awkward, Tomoko... not much.
  • Not So Different: Apparently neither she nor Tomoko had any friends in their class before befriending Yuu. She and Tomoko both like the same anime, got the same type of hairstyle in Chapter 3 of the spin-off, got insecure with Yuu's beauty in Chapter 4, found themselves unable to talk to guys and ended up in the same high school. Chapters 47 and 48 of the main manga show her walking home from school alone and eating her lunch in the bathroom, implying that she doesn't have many - possibly even any - friends in high school either. Notably this does not make them less hostile towards each other at all.
    • Their Not So Different nature is even lampshaded by the title of one of the 4-Komas from Chapter 7 of the spin-off, "Cut from the same cloth".
    • They appear to be showing some small progress when it comes to getting along. They accept having to hang together to be with Yuu during Summer break, and chapter 71 shows them taking a picture together (though it was played off as awkward).
    • According to chapter 83 their similarity even extends to their appearance (at least whenever Kotomi is distraught and without glasses) as they get mistaken for each other (albeit by someone who had little prior contact with either of them.
    • One could think that chapter's 83 title ("Because I'm Not Popular, I'll Tell Lies") was referring to Tomoko. While Tomoko does tell an obvious troll lie in the chapter, it is Komiyama who says the more significant lies.
  • Only Sane Woman: Has more common sense than her two friends, at least in matters not related to her crush Tomoki or potential romantic rivals.
  • Opaque Nerd Glasses: Sometimes she is presented like this depending on the situation. Her glasses are a little variant of this trope because they are not so big.
  • Otaku
  • Precision F-Strike:
    "Shithead."
  • Right in Front of Me: In Chapter 2 of the spin-off she tried to break the ice with Tomoko by telling her a story about having a laugh in the previous year when she heard that some middle schooler was still riding a bike with training wheels. Guess who that middle schooler was?
  • Sitcom Arch-Nemesis: With Tomoko. She dislikes Tomoko because the latter tends to act like a Jerkass towards her for reasons she can't fathom, and only ever strikes back at her when provoked.
  • Stalker with a Crush: Acts like this towards Tomoki in some chapters, though this is Played for Laughs. In chapter 88 she is shown taking photos of him during the athletics meet, getting turned on when he is made to wear baseball uniform and hoping he would be wearing the kind of uniform where the understocking is showing. In the very next chapter, when let into Tomoki's room by Tomoko, she considers looking through his drawers or his trash before deciding to lie in his bed instead.
  • Unknown Rival: When they reunite in Chapter 46 of the main story, Tomoko has forgotten about Kotomi. On the other hand, Kotomi bears a grudge against Tomoko. (The next chapter reveals that they didn't spend all of their middle-school years in the same class.) Now both are aware of the other's dislike.
  • Vitriolic Best Buds: With Tomoko on their best of days, particularly past Chapter 57. On their worst, it's a Sitcom Arch-Nemesis relationship.
  • Wide Eyes and Shrunken Irises: When she is surprised and/or angry.
  • With Friends Like These...: Yuu is the only link that makes her and Tomoko tolerate each other.
  • You Are What You Hate: The reason she despises Tomoko. Both are antisocial and their Only Friend is Yuu. Each one of them believes the other is below her.

    Kii-chan 
http://static.tvtropes.org/pmwiki/pub/images/watamote_kii_9952.jpg
Voiced by: Rie Kugimiya (Japanese), Juliet Simmons (English)

Tomoko and Tomoki's thirteen-year-old cousin and a seventh-grade schoolgirl. Having been fed a steady stream of face-saving lies by Tomoko, she idolises her older cousin.
  • Annoying Younger Sibling: Ever since she lost Kii's respect, Tomoko has come to see her cousin as this and always dreads their meetings.
  • Audience Surrogate: Her reaction to Tomoko's card game.
  • Broken Pedestal: How she sees Tomoko after all her attempts to look cool backfires spectacularly on her. Unlike other examples though, she takes the revelation well, and the next time they meet her admiration is replaced not with utter disdain, but with pity and appreciation that at least she tried her best.
  • Cloudcuckoolander: How Tomoko sees her in later chapters. In particular in chapter 104 Tomoko gets disturbed after listening to Kii gushing about Tomoko making her heart skip a bit, and also later, while watching Kii play an otome game for the first time (as Kii goes out of her way to keep all her stats average and make characters in the game neither hate not like her, and briefly dates one character after another instead of going after any potential love interest; Tomoko thinks it's almost robotic how methodical she is). Kii is also completely oblivious to how uncomfortable her attempts to take care of Tomoko and "help" her find a boyfriend make Tomoko.
  • Creepy Child: When she gets in a bad mood, Kii becomes very...unsettling. It's bad enough that Tomoko regards her as The Dreaded and she's always painted in a sinister light in Tomoko's dreams. To say nothing of the nightmare she had where Kii-chan implicitly raped her with an eggplant. As Tomoko woke up from that nightmare it turned out that Kii was actually in her room, watching her sleep.
  • Death Glare: Pulled one mixed with a Thousand-Yard Stare when she was angry with Tomoko, also...
    "No! Just take it."
    • This has become a regular expression for her when she is angry, with an added Stepford Smile.
  • Innocently Insensitive: She means well when she tries to take care of Tomoko after finding out the truth about her, but so far her actions just drive it home to Tomoko how pathetic she has gotten.
  • Nice Girl: An unusual role for a Type-A Tsundere specialist like Rie Kugimiya. She's so nice she doesn't harbor any grudge against Tomoko for unwittingly breaking her good impression of her.
  • Only Known by Their Nickname: Until chapter 60, where it's revealed that her name is Kiko.
  • Replacement Goldfish: In chapter 60 Tomoko speculates that Kii tries to take care of her because she treats her as a replacement for her deceased dog. At the end of that chapter Kii even gives Tomoko that dog's hairpin (the one she is always wearing).
  • Token Mini-Moe
  • Unwanted Assistance: She wants to help Tomoko become a better person, but Tomoko, who knows she's driven by pity and finds Kii's efforts demeaning, wants nothing to do with it.

    Megumi Imae 
http://static.tvtropes.org/pmwiki/pub/images/watamote_pres_6031.jpg
Voiced by: Ai Nonaka (Japanese), Juliet Simmons (English)

President of Tomoko's (and later Tomoki's) student council.
  • Early-Bird Cameo: In the anime, when she replaces the random girl holding the stack of papers that Tomoko accidentally runs into. Downplayed because this first appearance is an earlier part of the chapter/episode she would appear in.
  • Nice Girl: Some female students mention that she's popular with both boys and girls at the school due to her helpfulness. She is noticably kind and even protective toward Tomoko.
  • Put on a Bus: Since she's a year older than Tomoko, she graduates at the end of Tomoko's second year of high school.
  • Student Council President
  • Throw the Dog a Bone: She does this frequently for Tomoko. Seeing Tomoko down after Yuu leaves at the end of the school festival, Megumi borrows a mascot costume and gives her a hug and a balloon. In Episode 12, she also mentions having to keep an eye on that "cute girl" after Tomoko ends up getting flustered out of trying to strike up a conversation with her after a gust of wind gave her a good view of Megumi's panties.

    Hina Nemoto 
http://static.tvtropes.org/pmwiki/pub/images/hina_3.jpg
Voiced by: Yūko Kurose (Japanese), Margaret McDonald (English)

Tomoko's classmate and the first person in Tomoko's class that Tomoko is able to talk to on a semi-regular basis.
  • Adaptation Dye-Job: Subverted. She seems to have light-colored hair in the manga, and the cover of volume 11 (published after the anime concluded) shows her with red or pink hair, while she has brown hair in the anime. However, in the manga she dyes her hair, and the flashback in chapter 110 shows her natural hair color is indeed brown or black.
  • Ascended Extra: Appears as a background character as early as chapter 4 of the manga/the first episode of the anime. She becomes a recurring character starting with chapter 39.
  • Bitch in Sheep's Clothing: While she was the first person to make an effort to talk to Tomoko semi-regularly, and generally comes off as a polite and friendly person, Tomoko's efforts to get closer to her reveal that she is quite callous. Despite being nice to Tomoko, she still clearly looks down on her as an outcast and has no desire to be friends with her, to the point of cheerfully insulting her attempts at making conversation by trashing Tomoko's taste in the anime.
    • Not So Different: The way she looks down on Tomoko is quite similar to how Tomoko herself looks down on most of the otakus she encounters as losers.
  • Closet Geek: Likes Slice of Life anime and wishes to be a voice actress, which she hides from her friends. In chapter 97 she tells Tomoko they can talk about anime from time to time, but only in secret.
  • Forgotten First Meeting: Chapter 110 reveals that she and Tomoko took their high school entrance exam together, and afterwards even talked briefly and fist bumped. However, Tomoko ignored Hina when she was trying to introduce herself. Zig-zagged, as Tomoko remembers the meeting itself, but not that the girl she met was Hina. Even in chapter 117, after Hina made an impersonation of Tomoko that directly referenced the event, Tomoko still has trouble connecting the dots.
  • Mistaken for Gay: After Hina lends her some chapstick, Tomoko interprets it as an Indirect Kiss and starts to believe her classmate must be a lesbian who has a crush on her. Tomoko seems quite open to the idea of swinging the other way, despite her insistence that she is completely straight...until Hina shares her chapstick with another girl, leading Tomoko to assume she just got two-timed.
  • Unwanted Assistance: On two occasions her well-meaning attempts to reach out to Tomoko ended rather poorly for Tomoko:
    • In chapter 39, when the time comes for Tomoko to introduce herself at the first day of her second year, it turns out that Hina not only thought that Tomoko's introduction at the beginning of the first year was great, but also told everyone about it, and thus everyone in the class is looking forward to another great introduction. This causes Tomoko to panic and publicly embarrass herself.
    • In chapter 43, Hina gets curious about what Tomoko is searching the Internet for on her phone (during class) and asks Tomoko about this. This startles Tomoko so much that she drops her phone and it ends up in their teacher's hands with some NSFW images still onscreen.

     Mrs. Kuroki 
Voiced by: Risa Hayamizu (Japanese), Shelley Calene-Black (English)

Tomoko's and Tomoki's mother.
  • Exhausted Eye Bags: Like both of her children, though hers are substantially less visible. Also, judging by a bonus drawing by Nico Tanigawa, she got eye bags at a later age than her children did.
  • Locked Out of the Loop: She has no idea that Tomoko is a loner with no friends until chapter 90, when Ogino mentions this during their parent-teacher conference. In fact, Tomoko actively tried to hide this from her mother, e.g. by lying to her about having fun with her classmates in one of the Christmas specials.
  • No Name Given: The only reason we even know her last name is because we know her children's. She's exclusively called "mom" in-universe.
  • Parental Favoritism: Played with. She loves both Tomoko and Tomoki equally, but is often exasperated at her daughter for being lazy and irresponsible. This causes Tomoko to become slightly resentful whenever her mom praises Tomoki for his maturity and self-reliance.
  • What the Hell, Hero?: When Tomoko forgets to mail Tomoki's application to the entrance exams for a school in Saitama, the furious mother subjects her daughter to a very harsh lecture about how she ruined her brother's future.

    Ogino 
http://static.tvtropes.org/pmwiki/pub/images/ogino.png
Voiced by: Sanae Nakata (Japanese), Beth Lazarou (English)

Tomoko's P.E. teacher. During Tomoko's second year she becomes Tomoko's homeroom teacher.
  • Adults Are Useless: Zig-zagged. She is one of the few people who actually noticed how isolated Tomoko was in her class, questioned her about it and tried to help her. Unfortunately, her initial efforts to help Tomoko make friends failed due to her bluntness and mostly just put Tomoko in more awkward situations. However, Ogino grouping Tomoko with Yoshida, Yuri and Ucchi for a school trip did result in Tomoko's social circle expanding a bit, as after the school trip Tomoko started regularly hanging out with Yuri (who ended up viewing Tomoko as a friend) and occasionally interacting with Yoshida (though this turned out to be at best a mixed blessing for Tomoko).
  • Ascended Extra: Made her first, brief appearances in chapters 10 and 25 of the manga. Once she became Tomoko's homeroom teacher she was also given a larger role in the story.
  • Boyish Short Hair: Makes her look androgynous as a result.
  • Cannot Keep a Secret: Zig-zagged. She likes to spill out her students' secrets as long as she doesn't mention their names.
  • Cool Teacher: Attempts to be one, at least. She frequently tries to help Tomoko come out of her shell and socialize, and generally acts like a relatively lenient Reasonable Authority Figure when around her. Unfortunately, all of her efforts end up being seen as Unwanted Assistance by Tomoko, causing her to develop something of a grudge against her.
  • Deconstruction: Of the Cool Teacher trope. Her efforts to connect with her students on a personal level end up making them view her with contempt as an invasive annoyance rather than as a mentor that they can confide in.
  • Last-Name Basis: Justified due to her being a teacher that Tomoko isn't particularly close to.
  • Reasonable Authority Figure: While Ogino can be very stern and authoritative, she is willing to let things slide in extenuating circumstances. For instance, when Tomoko's field trip group tried sneaking out at night to get some food, she allowed them to go to a nearby convenience store since they slept past dinner, provided she accompany them.
  • Unwanted Assistance: Tomoko's opinion on her attempts to help her make friends. Hina didn't seem thrilled about Ogino helping her prepare for her future career as a voice actress, either.

    Yoshida 
http://static.tvtropes.org/pmwiki/pub/images/yoshida.jpg

A girl with blonde hair and a bad temper that Tomoko has a habit of pissing off.
  • Asleep in Class: If she's attending class, chances are good she's sleeping at her desk.
  • Berserk Button: When first introduced she has two: 1) perverted acts in general, especially being groped, and 2) being called a delinquent. Tomoko being Tomoko, she manages to repeatedly hit both these buttons, and it seems she is becoming yet another Berserk Button for Yoshida.
  • Delinquent Hair: She's a bleached blonde.
  • Face of a Thug: Certainly looks like a standard delinquent girl, but is heavily suggested to simply be an ordinary girl who is into punk fashion that Tomoko just assumes is a delinquent.
  • Flanderization: Early chapters portrayed her as an ordinary girl with a Face of a Thug who Tomoko was exceptionally good at pissing off. By the latest chapters, she seems to possess a Hair-Trigger Temper that can be set off by basically anything, regardless of who or what they are. She also generally yells and swears with much more frequency.
  • Girls Love Stuffed Animals: She seems to have an affinity for cute things in general.
  • Goofy Print Underwear: Tomoko mentions that she wears Hello Kitty-print panties. A later chapter suggests that all of her underwear features cute mascot characters on them, to the point where Tomoko claims that the fact that she wears them is an Open Secret.
  • Hair-Trigger Temper: She is always quick to threaten or even hit Tomoko, sometimes with little provocation. On the other hand she doesn't act like this when interacting with other characters, so maybe it's just that Tomoko is really good at hitting her Berserk Buttons. Notably, in chapter 106 she does not lash out at her friend who called her a moron to her face.
  • Hidden Depths: Despite what Tomoko thinks of her, she is shown to like cute things, couldn't recognize a love hotel when every other character could and apparently plans to celebrate her Coming of Age Day in Disneyland.
  • Hot-Blooded: The angry type. She also gets extremely fired up when she's excited about something, such as when talking about how cool Disneyland is.
  • Huge School Girl: Much taller than her female classmates, which stands out especially when opposite Tomoko.
  • Japanese Delinquents: Invoked in-universe, as Tomoko is completely convinced Yoshida is a delinquent. As Tomoko was repeatedly shown to be Wrong Genre Savvy, this may or may not be correct.
  • Jerk with a Heart of Gold: While she's generally angry and annoyed, this is mostly because she is justifiably pissed off at Tomoko for saying or doing something insensitive to her. Otherwise, she is shown to be a relatively pleasant person who seems to actually like Tomoko to some degree.
  • Last-Name Basis: Mostly because Tomoko hasn't bothered to learn her first name.
  • Misunderstood Loner with a Heart of Gold: Her intimidating appearance and short temper cause others to overlook her softer side. In a sort of twist on this trope, Tomoko also completely overlooks her softer side when interacting with her, but interacts with her much more openly than others do, allowing Yuri (and the reader) to see that there's more to her than her tough looks.
  • Not Helping Your Case: Beating up Tomoko for calling her a delinquent only further convinces Tomoko that Yoshida is a delinquent.
  • Odd Friendship: She and Tomoko couldn't be any more different, and going off of most of their interactions, you'd think they'd hate each other's guts. In reality, they're both pretty much friends, even if neither really acknowledges it.
  • Perpetual Frowner: There's a seldom a moment when she isn't scowling, which only fuels how intimidated Tomoko is by her.
  • Pervert Revenge Mode: Her preferred response to Tomoko's antics.
  • Pet the Dog: She does occasionally do nice things for Tomoko, like offer to share an umbrella as they walk home on a rainy day. It's just that Tomoko always runs her mouth off at the wrong time and gets punched in the face. In chapter 116 she actually drags Tomoko over to Megumi, who was graduating, so that Tomoko, who was too nervous to approach, could say good-bye.
  • Tomboy with a Girly Streak: A tough-talking and thuggish girl who likes all things cute and is generally pretty naive and innocent.
  • Tsundere: A platonic example. She's almost always (justifiably) pissed off at Tomoko, but still seems to like and care about her.
  • Vitriolic Best Buds: The vast majority of her interactions with Tomoko consist of Tomoko saying or doing something insensitive or perverted to her and Yoshida responding with anger and violence. To onlookers, Yoshida appears to be bullying her. Despite this, however, she is shown to genuinely like Tomoko somewhat, and is gradually becoming one of the closest things she has to a friend.

    Yuri Tamura 
http://static.tvtropes.org/pmwiki/pub/images/tamura.jpg

A fairly ordinary girl from Tomoko's class who ends up in her group for their class trip after a falling out with her friend.
  • Audience Surrogate: She's more or less taken up the role of the audience's representative within the story in recent chapters. She's a bit of a loner herself, but not nearly to the same degree as Tomoko, and while she is constantly bewildered by the other girl's behavior, she is also both amused enough by it to develop a fondness for her and empathetic enough to it to develop a sense of kinship with her.
  • Cloudcuckoolander's Minder: In chapter 106, she prevented Tomoko from saying something to Yoshida that would get her punched. Overall, she has a better grasp on what kind of person Tomoko is than the rest of the school.
  • Nice Girl: While she doesn't have a particularly good opinion of Tomoko, she nevertheless treats her with respect and kindness, and even invites Tomoko to eat lunch with her and her friend Mako in chapters 82 and 84 (though it's not clear whether she's doing this out of her own will or only because Ogino asked her to stay in touch with Tomoko during the school trip).
  • Noodle Incident: She spends most of the Class Trip thinking about how to make up with her friend Mako, but it's never said what caused the falling out, and they seem to have made up by the end. (A girl who looks like her can be seen in chapter 69 arguing with her friend because the latter accepted an invitation to a group from someone else, which means that the two can't be in the same group during the school trip. That girl is only seen from a distance though, and it's not confirmed whether she's Yuri.)
  • Not So Different: Her social life isn't actually that much better than Tomoko's. Both girls are shown to only have one person they consider a true friend (who in both cases is a girl who is more popular and sociable than themselves - Yuu in Tomoko's case, Mako in Yuri's) and aren't shown to be socializing much with other students (though eventually Tomoko and, to a lesser degree, Yoshida become Yuri's acquaintances). Before the second year class trip, when Yuri found out that she can't be in the same group as Mako, she did not join any other group of her own will. The main difference is that Yuri's Only Friend is in the same school and class as Yuri, unlike Yuu.
  • Only Sane Woman: She notices how much of an idiot Tomoko is, but still makes an effort to befriend her. She does the same for Yoshida.
  • Ordinary High-School Student: Probably the single most ordinary character in the entire series.
  • The Stoic: Downplayed. She's not emotionless, but she maintains a pretty firm poker face no matter what happens around her.
  • Unfazed Everyman: Her reactions to her new kind-of-friends' behaviors are much more subdued than you'd expect.

    Ucchi 
http://static.tvtropes.org/pmwiki/pub/images/sasaki.jpg

A popular girl from Tomoko's class who has strange eyes and has similar hair to Yuu. After spending most of her time with her friends in a different group during the class trip, the short time she actually spends with Tomoko permanently sours her opinion of her.
  • Ambiguously Gay: She thinks Tomoko is stalking her to sexually harass her, maybe more, which of course frightens her, but when it looks like Tomoko isn't interested in her, Ucchi becomes noticeably miffed.
    • In later chapters it starts to look like she might actually have a crush on Tomoko, going by her reaction to Tomoko giving her a secret "Thank You" note or how she was able to instantly tell Tomoki was Tomoko's brother just by looking at his face. In chapter 112 she actually leaves Valentine's Day chocolates in Tomoko's locker. In chapter 117 she openly admits in front of Hina, Okada and Kiyota that she finds Tomoko's creepiness strangely charming.
  • Aren't You Going to Ravish Me?: Due to Tomoko's mannerisms, comments and actions when interacting with her, she's convinced Tomoko is stalking her, and is obviously creeped out when Tomoko is trying to peek under her skirt. However, when she notes her also peeking under the skirts of other girls, her reaction shows this:
    "So long as you've got a girl to stare at, you don't care who it is?!"
    • She later has the same reaction again when she sees Tomoko going shopping with Yuu, who looks similar to herself. Ucchi is convinced that Tomoko is trying to replace her with Yuu.
  • Ascended Extra: Made a brief appearance in chapter 59 (as the girl sitting next to Tomoko in a bus and ignoring her to chat with her friends instead) before becoming a recurring character.
  • Foil: To Yuu. They both have active social lives, fairly similar appearances, and a connection of sorts to Tomoko. However, while Tomoko bears an obvious lust for for Yuu, who knows absolutely nothing about it, Ucchi misinterprets everything Tomoko does as being in relation to a perverse lust towards her. That, and Ucchi appears to be well on her way to developing a lust for Tomoko, who has no clue about it.
  • Green-Eyed Monster: Whenever Tomoko shows or receives attention from someone who isn't Ucchi, Ucchi always reacts with visible jealousy. In one of the panels in chapter 115 she can be seen in the background angrily clenching her teeth as she watches a graduating upperclassman patting Tomoko's head.
  • He Who Fights Monsters: Her beliefs that Tomoko is a creepy stalker who's utterly obsessed with her are so strong that Ucchi has in turn taken to obsessing over Tomoko and effectively stalking her.
  • Hypocritical Humor: By all accounts, she's guilty of everything she accuses Tomoko of being. For instance, when Tomoko leaves some chocolates for Ucchi in her locker, Ucchi calls her a creep for not giving them to her in person, even though she did the exact same thing the day before.
  • Identical Stranger: Somewhat resembles (a highly-simplified) Yuu. This actually gets lampshaded in one chapter, where, after seeing them together, Ucchi assumes Tomoko is using Yuu as a proxy for her.
  • Non-Standard Character Design: Always has Black Bead Eyes. It's so unusual, that even in-universe, Tomoko compared her to an emoji.
  • Not So Different: She has more similarities to Tomoko than she'd care to admit.
    • Both tend to make negative snap judgments about other people, and in particular take the most innocuous things as proof of perversion.
    • Both have feigned sleep in order to silently observe the other.
    • Both have tried to wake Yoshida up by tickling her (and got punched in the process).
    • Both get flustered around people that interest them (Tomoko to attractive boys, and Ucchi to Tomoko).
    • Both display Ambiguously Gay and/or Bisexual tendencies while being in complete denial about it. Tomoko insists that she's straight even though she lusts after Yuu, makes a habit of looking up girls' skirts, and enjoys close physical contact with females, while Ucchi constantly rails against Tomoko in her head even as she offers gifts to her.
    • Both have a Non-Standard Character Design that makes them stand out from everyone else. Tomoko has incredibly large, roughly-drawn eyes, while Ucchi's are small and beady.
  • Only Known by Their Nickname: "Ucchi" is just what her friends call her. Tomoko doesn't even know her actual nickname due to how little time they actually spend directly interacting, and instead just calls her "emoji girl".
  • Right for the Wrong Reasons: She's one of the few people who sees Tomoko for the perverted creeper she is, but only because she comically misunderstands everything Tomoko does, no matter how innocuous, as having perverted intentions.
  • Stalker with a Crush: Thinks Tomoko is hers. In her paranoia, she has become Tomoko's.
  • Suspiciously Specific Denial: As much as she loves to talk about how creepy and weird Tomoko is, she sure doesn't seem to mind her. Chapter 114 shows her to be somewhat pleased that Tomoko gave her chocolate for Valentine's Day, and as she's inwardly berating the fact that it looks like poop, she's still eating it.
  • Tsundere: A quiet, long-distance variation. Whenever she thinks about Tomoko, her thoughts are always full of unmitigated disgust, but she frequently goes out of her way to do nice things for her (complete with extensive rationalization that it's not because she likes her or anything), and blushes whenever Tomoko returns the favor.
  • Wrong Assumption: While she is right in general about Tomoko being a Covert Pervert, she also tends to interpret absolutely everything Tomoko does as her being a perverted stalker, even when Tomoko does something with no ill intent whatsoever.

    Akari Iguchi 
http://static.tvtropes.org/pmwiki/pub/images/iguchi_akari.jpg

Tomoki's classmate from middle school, and later also from high school. Revealed to have a crush on Tomoki, much to Kotomi's distress.
  • Ascended Extra: She made her first, brief appearances in chapter 25/episode 3 of the anime (as one of the girls who brought Tomoki printouts from school when he was sick) and in chapter 41 (where she was revealed to have a crush on Tomoki). After chapter 83 she becomes a recurring character.
  • Broken Pedestal: Eventually when she figures out that Kotomi isn't Tomoki's sister. She's willing to admit, at least in her Inner Monologue, that the girl is a huge pervert.
  • Butt-Monkey: Pretty much every chapter featuring Akari will just end with her flustered and humiliated.
  • Cannot Spit It Out: She turns into a Shrinking Violet in Tomoki's presence and is paralyzed by fear of embarrassing herself in front of him, which prevents her from confessing her feelings. It doesn't help that the one time she mustered the courage to try to act on her crush did result in her embarrassing herself in front of Tomoki in chapter 91.
  • Imaginary Love Triangle: For a few chapters she was convinced that Tomoko is her romantic rival. Neither Tomoko nor Tomoki had any idea she felt that way.
  • In-Series Nickname: After the events of chapter 91, Tomoko coins "Dicky-chan" for her.
  • Love Hurts: So far her crush on Tomoki has only caused misery and embarrassment for her.
  • Nice Girl: When straight out asked about Kotomi by Tomoki, she thinks for a moment of admitting that she thinks Kotomi is perverted but sympathizes too much with her affection for Tomoki to actually do so. She insteads tells him that Kotomi is a really innocent girl.
  • Paralyzing Fear of Sexuality: Later chapters show that Akari believes having sexual desires is something that makes one "impure"; as a result, she spends the first chapters after becoming a recurring character insisting that her crush on Tomoki has no sexual element whatsoever. In chapter 101 she finally acknowledges that she is also sexually interested in Tomoki, but this realization makes her loathe herself; in chapter 108 she calls both Kotomi and herself "vulgar perverts" in her thoughts.
  • Pyrrhic Victory: Feeling some measure of animosity for Tomoko during the sports meet due to the latter seeming to have some kind of relationship with her crush, Akari soundly beats her in a cavalry battle. However, not only does the victory feel shallow to her, but it gave Tomoko a chance to grope her, figure out her bra size, and report it to Tomoki. Akari gets nothing but thorough humiliation.
  • Unknown Rival: For the longest time, Tomoko had no idea that Akari considered her to be her chief rival for Tomoki's affections.
  • Unwanted Assistance: Gets some from her friend, Sayaka, in chapter 95 when the latter attempts to debate Akari's so-called perverted tendencies with Tomoko. All she ends up doing is embarrassing poor Akari and further solidifying Tomoko's impression of her.
    Sayaka: Akari's been in love with Tomoki-kun since middle school! She's just a pure-hearted girl who wants to see Tomoki-kun's dick!
    Akari: Please just stop!
  • Wrong Assumption: She makes two in chapter 83, when she manages to both mistake Kotomi for Tomoki's sisternote  and mistake Tomoko for Tomoki's suitor.

    Kosaka 
http://static.tvtropes.org/pmwiki/pub/images/kosaka_1.jpg
Voiced by: Jun Fukushima (Japanese), Johnny DeLaCerda (English)

A friendly older student who lent a sleeping Tomoko his umbrella during a rainy day. Since then, she's developed a crush on him.
  • Anime Hair: Complete with a little tuft of hair across his face
  • Bishōnen: He's drawn with a noticeably more feminine face than most other male characters, and is seen as very attractive by Tomoko.
  • Boyfriend Bluff: Tomoko attempts to pretend that she's dating him in an effort to impress Kii-chan. It works at first, but she's eventually forced to tell the truth after Kii-chan mistakes him tutoring another girl for him cheating on Tomoko and confronts him.
  • Last-Name Basis: He only told Tomoko his last name when introducing himself to her, further demonstrating how nonexistent their "relationship" actually is.
  • Love Interest: A one-sided and very minor example. Tomoko has a crush on him, but she also barely knows him. While he's pleasant towards her whenever they meet, he also pretty clearly doesn't harbor any particularly strong feelings for her.
  • Nice Guy: Seems to be generally pleasant and kind, giving Tomoko his umbrella during a rainy day and acting patiently towards her usual awkwardness. The second time we see him, he's tutoring a girl, once again showing that he's a helpful individual.
  • Old-School Chivalry: Appears to be a rather classic gentleman, as seen by his polite and courteous treatment of even the strange and awkward Tomoko.
  • Satellite Love Interest: Mostly because his status as a potential love interest is entirely in Tomoko's head. Tomoko has only spoken to him a few times, and outside of being a Nice Guy, not much can be seen of his personality from their exchanges.
  • Umbrella of Togetherness: He first meets Tomoko when he lends her an umbrella during a rainy day, and she later becomes smitten with him.

    Mako 
http://static.tvtropes.org/pmwiki/pub/images/mako_1.jpg
A friend of Yuri's who becomes acquainted with Tomoko through their mutual relationship with her.
  • The Atoner: She and Yuri implicitly got into a fight that resulted in the latter not being grouped up with her. While they have made up since then, Mako still feels guilty about it. She similarly feels guilty when she doesn't have lunch with Tomoko, and decides to befriend her to make up for it.
  • Horrible Judge of Character: She's convinced that Tomoko is a selfless, kind, and misunderstood soul. If only she knew what dark thoughts lurked in that girl's head.
  • Mistaken for Gay: Her often emotional and touchy-feely behavior around Tomoko has convinced the latter that she's a lesbian.
  • Nice Girl: Aside from a fight she got into with Yuri, she's impeccably sweet.
  • Only Friend: For Yuri before Tomoko entered the scene.

    Hatsushiba 
http://static.tvtropes.org/pmwiki/pub/images/hatsushiba.jpg
Voiced by: Tomokazu Sugita (Japanese), Corey Hartzog (English)

An overweight student in the manga club who Tomoko is partnered with in order to complete a portrait-drawing assignment for her art class. While Tomoko believes that the cute-looking portrait he drew of her meant that he found her attractive, it is later revealed that he draws all female characters with the same face.
  • Abhorrent Admirer: Tomoko is immensely grossed out by the idea of him being into her at first. After she sees the picture he drew of her, though, she becomes more keen on it. Of course, it's later made clear that he has no interest in her at all, and his attraction to her was all in her head. Also counts as Hypocritical Humor on Tomoko's part, as she's a huge loser and geek herself who constantly pervs on people who barely know her.
  • The Bus Came Back: Makes a surprise reappearance five volumes after his debut as a person checking out books from the library while Komiyama was on duty. Not only does Tomoko still think that he has a thing for her, but Komiyama mistakes Tomoko as having a thing for him.
  • Geek Physiques: He's fat and a member of the manga club.
  • Gonk: He's fat, has a strange and unattractive face, and acts in an unappealing manner.
  • Last-Name Basis: Mostly because Tomoko doesn't know him very well.
  • Nerd: Certainly seems like one, at least. He's fat, wears glasses and is in the manga club. Tomoko even guesses that he he has no friends at all just by looking at him. Since we don't actually get to see what his social life is like though, this is entirely an assumption.
  • Non-Standard Character Design: His lips and nose look nothing like any other character's.
  • Only Six Faces: He draws all of his female characters with the same stock Moe face. His portrait of Tomoko in this style convinces her that he has a crush on her.
  • The Quiet One: Doesn't say much at all.
  • The Stoic: Maintains the same expression throughout all of his screen time.
  • Terrible Artist: Played with. He's actually quite good at drawing, but is incapable of giving his characters different-looking faces.

    Okada 
http://static.tvtropes.org/pmwiki/pub/images/okada.png
Voiced by: Ayaka Asai (Japanese), Ashley Miller (English)

A popular girl in Tomoko's class who is friends with Hina.
  • A Day In The Lime Light: She gets a very short 5 page one in Chapter 118, where she grudgingly saves Tomoko from Yoshida, but gives her back once she learns why she Yoshida was angry at her in the first place.
  • Bully Hunter: Despite her usual indifference to Tomoko, she immediately steps in to defend her from (what appears to be) Yoshida bullying her.
  • Innocently Insensitive: Generally appears to be well-intentioned in her interactions with Tomoko, but only ever ends up making her more self-conscious when doing so. Even when she isn't interacting with Tomoko, she still manages to make her feel bad about herself by bringing up her fulfilling teenage life when around her.
  • Last-Name Basis: Only ever referred to by her last name.
  • Lovable Alpha Bitch: To a degree. She has a large social circle and appears to be quite popular, but also always acts pleasantly towards Tomoko whenever they interact. Despite this, she is generally shown to be disinterested in or even put off by Tomoko, showing that, while friendly, she still isn't exactly clamoring to spend time with unpopular kids.
  • Ordinary High-School Student: Seemingly an entirely ordinary teenager with a fulfilling school life. Tomoko at one point even refers to her as a "normie".
  • Platonic Life Partners: Kiyota appears to be her best friend, but their relationship seems to be completely platonic, with Okada even teasing Kiyota about his love life.
  • Satellite Character: Exists mostly to serve as a "popular kid" for Tomoko to grumble at. This is highlighted multiple times to be entirely the result of Tomoko's Protagonist-Centered Morality preventing her from seeing her as anything more.
  • Those Two Guys: Almost always appears with Kiyota. Strangely, he's totally absent from her focus chapter.

    Yoshinori Kiyota 
http://static.tvtropes.org/pmwiki/pub/images/kiyota.png
Voiced by: Kengo Takanashi (Japanese), Blake Shepard (English)

A popular boy in Tomoko's class who is friends with Hina.
  • Adaptation Dye-Job: Has brown hair in the anime, while the cover of volume 11 of the manga (published after the anime concluded) shows him with blond hair.
  • Butt-Monkey: Seems to be something of this within his friend group, as he regularly gets teased for his romantic failings. It's all shown to be good-natured ribbing, though, and he frequently instigates it by making self-deprecating jokes about himself.
  • Innocently Insensitive: Generally appears to be well-intentioned in his interactions with Tomoko, but only ever ends up making her more self-conscious when doing so. Even when he isn't interacting with Tomoko, he still manages to make her feel bad about herself by bringing up his fulfilling teenage life when around her.
  • The One Guy: While the popular clique does include multiple guys, they are reserved entirely for group shots. Outside of these instances, Kiyota is the only popular male student we ever see, making all of his close friendships seemingly be with girls.
  • Ordinary High-School Student: Seemingly an entirely ordinary teenager with a fulfilling school life. Tomoko at one point even refers to him as a "normie".
  • Platonic Life Partners: Okada appears to be his best friend, but their relationship seems to be completely platonic, with Okada even teasing Kiyota about his love life.
  • Satellite Character: Exists mostly to serve as a "popular kid" for Tomoko to grumble at. This is highlighted multiple times to be entirely the result of Tomoko's Protagonist-Centered Morality preventing her from seeing him as anything more.
  • Those Two Guys: Almost always appears with Okada.

    Kakinuma 
http://static.tvtropes.org/pmwiki/pub/images/kakinuma.jpg

A nerdy boy who sits next to Tomoko in class.

Alternative Title(s): Its Not My Fault Im Not Popular

http://tvtropes.org/pmwiki/pmwiki.php/Characters/NoMatterHowILookAtItItsYouGuysFaultImNotPopular?from=Characters.ItsNotMyFaultImNotPopular