Abandon Shipping: Fujiwara/Ishigami was a popular pairing in the early days of the manga. After Ishigami gained actual love interests in Tsubame and Iino, while Fujiwara ended up Demoted to Extra, you'll be hard-pressed to find anyone who still ships it outside of those who only watched the anime.
Gossips are generally viewed as the lowest form of life by the characters in the story as well as the story itself. The quickest way to show whether a character is good or bad is whether they believe the Malicious Slander about Ishigami's past. Later on, Hayasaka's friends refusing to gossip about her when they are tempted is used as proof that they really are her true friends, while Kaguya's family's gossip about her as a child is shown to have been the main cause of her trust issues and insecurity. If that wasn't enough, Tsubame explicitly spells it out to Osaragi in their flashback by calling gossips sad and empty people who spread rumors out of jealousy to tear down others who are more successful. That said, gossip is ultimately what restores Ishigami's reputation, so the act itself is a tool, but the people who use it are more questionable.
To a lesser extent, bad parenting and how it affected their children. Shirogane became an overachiever who pressured himself to his own limit because of a Parental Abandonment from his mother, while Kaguya was neglected by her father and was raised by servants into her previous Ice Queen self. It also resulted with the two being Insecure Love Interests, the lack of proper parenting created barriers that affected their self-confidence.
Fujiwara. Because of the frequency and perfect timing of her Spanner in the Works moments, a popular fan theory is that she is secretly aware of everything, and is trolling as well as manipulating both of the main characters for her own entertainment. This gets a nod in Chapter 43, where a ramen connoisseur over-analyzes Fujiwara's ramen eating technique and concludes that she's an expert like him, when she was just really hungry and wanted to eat ramen.
A group of fans actually think that Fujiwara's a Stepford Smiler or secretly depressed, given her more heartfelt moments to Kaguya have her mention not wanting to be left out or left to the wayside, her knowing that Kaguya looks down on her, and her piano hobby being all but dropped for mysterious reasons.
Was Ishigami's desire to not tell Ootomo about Ogino's slimy personality born out of true altruism, or just him looking for self-gratification? On the one hand, revealing that would just do a lot of unnecessary harm to her, and the whole point was that Ishigami wanted to help protect her from the shadows. On the other hand, not telling her didn't really solve anything and she remains ignorant and vulnerable to future slimy people, and Ishigami prolonged his suspension and partly caused his own suffering because he didn't want to kowtow to a lie he didn't agree with, making himself the center of something that wasn't ever about him in the first place, which is ultimately validated when the student council (and Iino) work together to keep him in school. Even Shirogane, who sympathizes with Ishigami, bluntly says that Ishigami could have picked a smarter way to accomplish his goal.
There's also the matter of what, exactly, Ishigmi's feelings for Ootomo were that pushed his actions. On the one hand, he was perfectly fine with her hating him and explicitly says that he's grateful to her for being his friend in middle school. On the other hand, she matches his favorite type of girl easily, and his actual love interest Tsubame supported him nearly the exact same way Ootomo did before the incident, leading many to think that Ishigami had a crush on her he denies to himself. In-series, Osaragi even comments that Tsubame may be a Replacement Goldfish for Ootomo, but as the chapter was a direct satire of shipping debates the validity of the statement is called to question.
Kashiwagi. Is she genuinely oblivious of Maki's crush on her boyfriend, or is she fully aware of it? If the latter, is she deliberately flaunting her relationship with Tsubasa? Alternatively, does she truly love Tsubasa, or is she trying to keep him apart from Maki by dating him instead?
Kaguya's claim of her first encounter with Shirogane was him challenging her to get the first place at the end of semester test in Chapter 193, while calling it as embarrassing. Was her "embarrassment" being a result of her having a bad habit of Forgotten First Meeting with a lot of people (including Kei and Mikado), or its because of a guilt in not noticing Shirogane's presence way earlier in her school years?note Kaguya and Hayasaka eavesdropped on a bedridden Shirogane that he had tried getting her attention before he puts up the brave façade in Chapter 147.
Audience-Alienating Premise: The very idea for the "Official Doujinshi" spin-off was to take a series that deliberately avoids gratuitous fanservice and make it Hotter and Sexier. Needless to say, fans only really started to like it when it dropped that premise in favor of just throwing the characters in various Alternate Universes instead.
Audience-Coloring Adaptation: In a literal example of coloring, you'd be hard pressed to find a single piece of fanart that depicts Fujiwara with the silver hair she has in the manga, rather than the pink she had in the anime.
Author's Saving Throw: Fujiwara is often criticized for being a Static Character who doesn't have much of an impact on the plot, as well as falling Out of Focus after Kaguya and Shirogane start dating. Chapter 222 alleviates some of this by revealing that her Character Development happened way back in middle school rather than high school, as well as offering more insight on her relationship with Kaguya. Chapter 223 would immediately follow by giving her a more active role in the plot. ... as atemporary antagonist, before expanding on her role as Shirogane's surrogate mother figure and trainer and finally giving her an internal monologue, however short.
Awesome Music: The soundtrack is highly praised for many memorable songs. The openings in particular are well-loved. In fact, Amanda Lee (Hayasaka's English dub voice) covered bothopenings!
As the two leads became more honest with themselves regarding their feelings for one another, the series' main pull became less them trying to get the other to confess and more them awkwardly dancing around their feelings. There are still chapters here and there where they try to get the upper hand, but these "battles" are fewer in number.
Kaguya herself gets most of this criticism. She is still a schemer deep down and will do anything to help Shirogane if she can help it, but after "I Can't Hear the Fireworks" she's become more and more visibly smitten with him while Shirogane can at least hold his feelings in. Some fans cited that as a sign of Kaguya's eventual "defeat", and are upset that her more dominant personality is dormant. She at least develops a routine to prevent herself from overreacting to every little thing, so she's been able to take back some power. Post-coupling, criticisms have gotten worse in this regard; aside from forcing Miko to attempt reconciliation with Osaragi, she spent a lot of time in the background doing little, bowing to her older brother's demands, and in general being much more reckless and naive than expected.
This starts to happen to Shirogane, albeit in a different way, as he constantly tries to take on skills that he's so bad at that it causes Fujiwara trauma as she trains him. So he's on something of a pendulum that swings from "atrocious" to "decent", unless academic studying is involved, where he is consistently the best.
Kaguya herself gets some folks splitting ends. While there is a part of the audience that doesn't like her extreme trust issues, her insecurities, and the fact that she hasn't done anything big for Shirogane like the Fireworks chaptersnote And that's if you don't count Shirogane's birthday arc, others like the Character Development she's given (being a Defrosting Ice Queen that's more open to her friends) and her character interactions. Her treatment of Hayasaka is also under scrutiny, especially once the audience is aware of how much Hayasaka puts up with professionally to take care of her. That said, Kaguya not only forgives Hayasaka for spying on her (forgiving anyone, much less a betrayal as personal as that, is a first for her) but becomes friends with her.
Ishigami is a very popular character, but his series-wide arc made the fanbase split on him in his home country. Opinions on his method of preserving Otomo's dignity vary, with some appreciating how far he's willing to go for someone who helped him during a dark period in his life, some feeling like he threw everything away for an ignorant airhead, and some feeling like the whole plan was short-sighted and ill-planned in the first place. The fact that the series ultimately validates his actions and has most of the important Shuuchin players restore his reputation for him is a major topic of debate. Him being the "secret protagonist" of the narrative also sees people taking umbrage, as while some fans appreciate the strides Ishigami went through to overcome his loner mindset, others don't like how his attempts to win over Tsubame took up a lot of the post-Festival content. Finally, people are split on whether they prefer Ishigami's pre-development bluntness and gamer otaku personality, or his post-development "normie" personality.
Kashiwagi as she continues dating her boyfriend. As the months go on, she shows that she has major insecurities throughout the whole thing, and some felt like the relationship was very one sided given her boyfriend does all of the big romantic gestures while she just reciprocates. However, her Straight Man role is appreciated, and some do like that she turned out not to be the one played straight character in the series.
Iino, after her initial introduction. Her treatment of Ishigami throughout the series is seen as a large point of contention for her, due to the fact that she comes off as antagonistic towards him for debatable reasons, and because her character arc is heavily tied to Ishigami's instead of expanding on what was initialized in the Election arc. Others think she has and did obtain room for growth, as demonstrated in chapters having her interact with other characters outside of Ishigami. Her naive but earnest sense of justice and her starvation of affection also come up as points for or against her.
Despite enjoying some initial popularity, particularly amongst the anime fans, time has turned Fujiwara into the most divisive character in the manga:
Her status as the comic relief either works well for her or holds her back. While Aka has said he intends on keeping her lighthearted, some fans felt cheated due to her backstory and development as Kaguya's first real friend being glossed over for a lot of the series. The occasional glimpses we get into her insecurities regarding her friendship with Kaguya also make some wish for a more dramatic role. However, just as many fans are fine with her remaining comedic, as the rest of the main characters have more serious character arcs to work through and her maintaining levity more than justifies her attitude in story.
After taking a level in Jerkass, she gets more of this. She still possesses a fanbase for her constant humor, but some find that she's turned into a total Jerkass, and didn't feel much sympathy for her when she complained about how she's The Friend Nobody Likes later on. On the other hand, some found her more snarky tongue and occasional jerky tendencies a good game changer from her original role as the wall between Kaguya and Shirogane, and it offers new interactions with the main cast that she never got before. Her being Out of Focus after Kaguya and Shirogane start dating is either lamented or welcomed. Fujiwara is particularly hated by fans of Iino for using Iino's naivete and idolization of her to bully her, drawing comparisons even In-Universe to Domestic Abuse.
Relating to the above as well, Fujiwara going Shipping Torpedo against Kaguya and Shirogane's relationship while declaring to come up with plans to break their relationship is either an acceptable addition to the story's plot, or simply seen to further cement her status as a full blown Jerkass due to her Clingy Jealous Girl mode of wanting Kaguya all to herself. Then again, this only lasts for a total of one chapter since the chapter after that shows that they have her blessing for their relationship, showing her support for their happiness together.
Osaragi has begun to veer into this as of the End of Secrets arc due to blatantly disregarding her best friend Iino's feelings for Ishigami and prioritizing making Ishibame happen rather than talking to her about it, as well as the reveal that she only dated Kazeno to keep him from interfering with Ishigami and Tsubame's relationship. The greatest breaking point came in 203: where she tells Kaguya that because Ishigami worked hard to improve himself for Tsubame, he can keep trying to ask her out despite the fact that it hurts Tsubame to reject him. Chapters 229 and 231 caused her to become an even more polarizing character in the fanbase when those chapters give more insight on her character and motivations. Either fans love her for the complexity she showed in those chapters with her major flaws highlighted and agree with her statements about her disdain towards Iino and Ishigami as a pairing, or they utterly loathe her for her terrible treatment of Iino which is further compounded by the reveal that she was only a "friend" to Iino out of convenience. The fact that she's against Iino and Ishigami developing a potential relationship out of petty jealousy is another sore point fans have against her character.
Captain Obvious Reveal: Chapter 192 confirmed that Ishigami was the one who gave Iino the flower back in middle school, something that fans had suspected from the moment it was first mentioned over a hundred chapters earlier.
Chapter 65 has Fujiwara return to her roots as the relatively sane character of the main cast, calling out Shirogane and Ishigami on getting overexcited for elections.
After kissing Shirogane in response to his confession at the cultural festival and falling into a love-induced coma because of it, Kaguya wakes up as her original cold, calculating personality in Chapter 141.
Continuity Lockout: The series has this by way of Continuity Creep, to the point that people who are coming into the manga after seeing the anime are often recommended to at the very least go back and read all the chapters that weren't adapted so they don't miss anything that could potentially become important later on. This is taken even further with the Spin-OffYonkomaWe Want to Talk About Kaguya, whose very premise as an Innocent Bystander Series and brand of humor pretty much requires the reader to be familiar with specific chapters of the main series.
Ishigami and Hayasaka are a popular ship despite the fact they have only interacted once in the first 50 chapters and that was a single line of dialogue. Mostly due to the fact they are good friends to Shirogane and Kaguya respectively, have similar personalities and both are very popular.
Shirogane and Hayasaka is another fairly popular ship, despite the two never showing any inclinations of being attracted to one another and Hayasaka being a Shipper on Deck for him and Kaguya. The OfficialDoujin even dedicates several chapters to the duo becoming the Official Couple.
Die for Our Ship: Tsubame Koyasu gets this from fans who ship Ishigami with anyone else, who consider her to be a bland and flat Satellite Love Interest. On the flip side, Iino also gets harsh treatment from Ishigami/anyone shippers due to her often antagonistic relationship with him.
Kobachi Osaragi isn't part of the student council and so she mainly appears in scenes with Iino. She quickly gained a lot of fan approval after Chapter 85 which showed her as one of the only people outside the student council who doesn't ostracize Ishigami due to the rumors about him because she witnessed him being secretly kind to Iino, even though he and the latter can't stand each other. She even checked on him without prompting, quietly wishing his efforts to break out of his shell well. Her Deadpan Snarker and not-entirely Covert Pervert tendencies revealed in Chapter 80 had already made her fairly popular as Iino's Hayasaka equivalent, but Chapter 85 was what really cemented it. However, her later actions and subsequent treatment of Iino in the manga have made her into a verydivisive character in the fanbase.
Shirogane's dad makes few appearances. In the anime, he only appears, once as a joke, until the Sports Festival arc in the latter half of the second season. He started to grow on fans with his hilariously awkward personality in Chapter 83. This only grew when he trolled Kaguya into revealing her deepest feelings for his son in Chapter 86. Then when it was discovered that his voice actor in the anime is Takehito Koyasu, known for playing Dio Brando in JoJo's Bizarre Adventure, his popularity skyrocketed.
Rei Onodera is mostly just a supporting character with minimal focus, but her laid-back attitude, the contrast between her seemingly stoic demeanor and fun-loving side, her sincere efforts to change herself after she believes she may have hurt both Ishigami and Iino with her gossip, and her growing genuine friendship with Iino have endeared her greatly to the fans.
Epileptic Trees: In Japan, some fans have pieced together which developments might happen in the series based on the Theme Naming of all the important characters referencing The Tale of the Bamboo Cutter. Mostly, they argue that the final student Council Member will be Kazune Abenote he was on the score ranking, due to his name also referencing Kaguya-hime's suitors; that Kaguya might have an arranged marriage arc with Maki's brother Mikadonote given that his name references the emperor who tried to marry Kaguya-hime; and that Fujiwara will be acquainted (if not given a love interest) with one of the Shuuchin VIPsnote the Saha club President is a second prince from a fictional country, and Fujiwara's namesake is a second prince with his task referencing a fictional country (Hourai).
Even Better Sequel: Season 2 starts right after what is considered to be where the manga starting Growing the Beard and as a result is often considered to be superior to season 1 in just about every way, with greater focus on character development and interactions.
Fan-Disliked Explanation: While it was good to see Kaguya ruminate on her relationship with Fujiwara, some fans didn't like her justification for avoiding telling her about she and Shirogane dating—that she feared that Fujiwara would feel betrayed that her attention was divided elsewhere. The series even acknowledges that Kaguya dodging the explanation until just after she finally had sex felt weird for someone supposed to be Kaguya's oldest friend, and Kaguya had not expressed anxieties like that until that chapter.
Fanon: Some fans are convinced that there was an second unnamed sister who went with Shirogane's mother when she left rather than Kei. This is directly contradicted by the official fanbook, which lists his only immediate relatives as Kei, his father, and his estranged mother. This idea is then completely shut down during Kaguya's visit to the Shiroganes in Chapter 208, where Papa Shirogane mentions Kei being taken by her mother when she left and then Kei herself talks about running away from her mother, back to the rest of the family.
Fourth Wall Myopia: Quite a few fans are angry at Ootomo for her blaming Ishigami for ruining her relationship with Ogino despite all he did to protect her, even though he deliberately kept her in the dark. From her perspective a boy she barely knew attacked her boyfriend, was accused of being a stalker, never refuted the claim or explained himself, and her boyfriend broke up with her several days later. What other conclusion was she supposed to come to based on the available information? The phenomenon happened again when Tsubame finally told Ootomo the truth; while it is sad that their friendship ultimately cracked because of this, from Ootomo's perspective she's been suddenly thrust with information she should have gotten a long time ago if true, while she's face value supposed to forgive somebody who didn't even exenorate himself on her friend's word.
A major fan complaint about the later half of the series is that the Continuity Creep got so out of hand that it was nearly impossible to keep track of all the characters and events. But during the middle of the manga, especially during the highly regarded Fireworks arc and Ishigami's backstory, the strong continuity and Ensemble Cast was considered to be what raised the series' profile from a decently funny rom-com to an interesting, three-dimensional story that could generate actual pathos, and flashbacks and call backs were used sparingly to flesh out characters who needed it. However, later chapters add many previously unseen character relationships and reference the past in ways that don't seem to add anything to those characters, or do anything at all but leave the reader more confused. In addition, the increasing focus on continuity in later chapters leads to characters that were obviously created to be gag characters and parodies gaining serious backstories and relationships with other characters without changing any of their overt parodic elements.
Many fan complaints exist about the humor in the latter half of the series becoming much more raunchier and explicit than in the first half. Actually, the early series had some sex jokes of their ownnote the "wiener" joke, most notably, but in those early jokes the sexual content was just a setup for the real joke: Kaguya showing herself to be Not So Above It All through her immaturity and cluelessness. Later jokes dismiss with that and just have the sex itself be the joke, quite literally in the case of the Running Gag concerning Tsubasa and Nagisa's relationship.
How a lot of plot points about or centered around Ishigami concern the Middle School Incident. When it was first resolved in Chapter 90, readers praised the plot as it had decent foreshadowing up to the sports festival, gave Ishigami a lot of depth that allowed him to explore friendships outside the Student Council, and showed that despite still not telling Ootomo the truth, he was willing to put that dark part of his past behind him. Its reappearance and major contributions to the Swallow's Cowry character arc, however, got mixed results; while people were happy to see Ishigami's reputation restored and the truth get out, other fans weren't pleased by how every Shuuchin higher up and upperclassman teamed up just to exonerate Ishigami; how despite the series stating that it was a ill-thought out plan Ishigami's part in it was still looked at as heroic and honorable; and that he barely seemed affected at all when Tsubame told him that she went behind his back and confessed the modified version of the truth to Ootomo (again, the one person he didn't want knowing). By the time it came to the Stone Begging Bowl and the incident is brought up again, this time with someone who wasn't involved at all getting angry on Ishigami's behalf and Onodera forcing Ishigami to reconsider his feelings for Miko by bringing up Ootomo, some fans started to get tired of the plotline.
Thanks to Papa Shirogane and Dio sharing the same voice actor, and Kaguya calling Miyuki only to get his father akin to a famous Jojo meme, the friendship between the Kaguya-Sama and Jojo fandom was formed. Part 5 fans also love comparing Miyuki Shirogane to Part 5's hero Giorno due to being the son of Dio as well as their similar golden-haired protagonist roles. The first OP's pronunciation of "Oh love me mister" also sounds like "Oh love me Mista", a Part 5 character which spawned some edits.
The series seems to share many readers with Tomo-chan Is a Girl!, with many people even labeling Fujiwara as "Cotton Candy 2.0" if the above theory is to be believed. Likewise, some have also favorably compared Kaguya's maid Hayasaka to Misuzu.
Growing the Beard: While the series was decently regarded beforehand, many readers started flocking to it during the "I Can't Hear the Fireworks" chapters. But the bigger unexpected moment comes from the author decided to include an ensemble cast that becomes interesting on their own to fill up the rom-com elements.
Kaguya comments in a nostalgic tone in Chapter 8 how she and Shirogane first met during the summer of the previous year, which sounds sweet at the time but becomes downright depressing once it's revealed that they actually met the previous spring. Kaguya having completely forgotten all their previous encounters from how little of an impression they made on her only serves to reinforce Shirogane's belief that she'll never love him for who he really is.
Hayasaka saying she wants to change her job during parent-teacher conferences in Chapter 111 which is a harmless joke at the time but becomes a cry for help once it turns out Hayasaka has been spying on Kaguya for her older brother Oko and it's her real job since they were children.
Chapter 222 paints Iino's idolization of Fujiwara in a harsher light when it turns out that even though the basis for Iino's admiration being Fujiwara's skill with the piano, Fujiwara in truth hated it because she was forced to devote all her time towards it and could never play like a child her age should have. And then when she finally got to get close to her idol, she took advantage of Iino's naivete to form a classic, albeit platonic, abusive relationship with her.
One chapter has Miko freak out when she believes that Onodera and Kaguya are talking about her behind her back. Her worst fears are realized in Chapter 231, where she overhears Osaragi telling Kaguya what she finds annoying about Miko and declaring their friendship as shallow.
Heartwarming in Hindsight: When Kaguya is pleading with God to let her reach the fireworks festival in time during the summer arc, she refers to Ishigami as "the first junior I ever had to look after". It's a sweet sentiment at the time since it was the first time she had ever really viewed him in a positive light, but it becomes so much more meaningful in retrospect given how close the two would grow to be over the next 40 or so chapters.
When she was first mentioned, many readers thought that Kei had a crush on her older brother and would be competing with Kaguya for his affection. Then it turned out that not only was she not in love with him (romantically, anyways), she specifically goes out of her way to make sure that nobody ever thinks that she does.
One of the earliest video's made by the English speaking fandom was a collection of live reactions to Chapter 45 on 4chan, which used Bonnie Tyler's "Holding Out for a Hero" as background music. Almost four years later, season 2 of the anime would have a pastiche of that very same song as part of its soundtrack.
In Chapter 114, Iino tells Shirogane that his face isn't her type and she prefers someone more like actor Sho Hirano (whom she'd been established as being a fangirl of in earlier chapters); while this was probably Foreshadowing on Aka's part (Hirano was the inspiration for Ishigami), this chapter became hilarious when Hirano was cast as Shirogane in the Live-Action Adaptationnote Amusingly, this disparity is referenced in Chapter 140, which celebrates the movie. Ishigami suggests that Hirano resembles Shirogane, which Iino agrees with; when Shirogane turns around and says "If anything, he looks more like Ishigami", Iino gets deeply offensive.
The premiere episode of Season 2, where Ishigami and Shirogane attempt to use toilet paper on Tsubasa, was aired during the times of toilet paper shortage resulting from the Coronavirus pandemic.
Fans have long joked that Ishigami was the protagonist of a harem manga due to his status as a Launcher of a Thousand Ships. With Chapter 190-192 confirming that Iino, Tsubame, and Osaragi all have feelings of varying strength for him, he can officially be considered to have a harem. What's more, a special joke chapter has Ishigami dream that Shirogane was the harem protagonist and that he himself, being the "best friend" character, wouldn't exist. In reality, the reverse is true, but at the very least Shirogane is still present for him.
Launcher of a Thousand Ships: Ishigami has been shipped with quite a few girls over the course of the series (Hayasaka, Iino, Tsubame, Maki, Osaragi, Onodera, Karen). Fans have been known to joke that he's secretly the protagonist for a harem manga.
Mind Game Ship: Kaguya and Shirogane's relationship consists of messing with each other in hopes of forcing a Love Confession because they're too prideful to give one themselves.
One True Pairing: Ishigami/Iino grows in popularity the longer the manga goes on for. The Christmas party cemented it as the most popular ship in the fandom that hasn't already happened.
One True Threesome: The few that both want Maki to be romantically fulfilled and Kashiwagi and Tsubasa to remain together end up shipping all three together. It helps that Maki and Kashiwagi are best friends and that Tsubasa already likes Maki platonically.
Periphery Demographic: At the height of its popularity, the manga ranked #2 among romcoms with teenage girlsnote only beat out by the shoujo manga Haru Matsu Bokura, and #1 with women twenty and up. And the anime is popular with just about everyone, with its first season being easily the most popular anime comedy of 2019.
Ship-to-Ship Combat: Inevitably for a Love Triangle, one broke out immediately between Ishigami/Iino and Ishigami/Tsubame. Aka foresaw this, and dedicated a chapter to having a ship war occur in-universe between the two pairings.
How some fans felt Hayasaka was handled. For most of the story, she served Kaguya as her beleaguered assistant, and throughout her small focus chapters she talks about her cold upbringing in the Shinomiya household, her estrangement from her parents, and how she wishes she could meet Kaguya as a friend and equal rather than a master and servant. While she was able to get some good character moments by befriending Shirogane and Kaguya does eventually realize she needs to take some of the load off of Hayasaka's shoulders, her major character arc ends up being more about the Shinomiyas than about her, and once she's relieved of duty she gets very little focus afterwards. The help Kaguya orders for her (who eventually replaces her) also turns out to be a plant by her older brothers, mentioned offhandedly.
Played for Laughs with Go Kazamatsuri. He's a Kid Detective who works as the sidekick of a famous detective, is the only known "impure" student at Shuuch'in besides the Shirogane siblings, and attends the school to solve the disappearance of his older brother. All we see of him in the manga is his dynamic with Saburo as Those Two Guys who hang around Shirogane and have a crush on Karen and Erika.
Funimation's subtitle change in Season 2 Episode 5 note "Why are you so far away from me" was changed to "What's the deal with the social distancing?" has caused an uproar among viewers for injecting a meme unrelated to the original script. Aniplex USA acknowledged the error and reverted to the original line.
A lot of fans complained about the increased level of fanservice in part 1 of the OVA, given that the chapter it adapted was a parody of fanservice.
The live action movie duology had quite the mixed reception. Controversial changes to the story include Kaguya running against Shirogane for the presidency instead of Iino, and as a consequence of that Iino being Demoted to Extra hard in favor of Tsubame taking a more active role in Ishigami's backstory.
The manga follows popular global trends that pass by faster than the manga's own timeline does. A prime example is Fujiwara and a few others playing Among Us in Chapter 218, which should take place roughly in the spring of 2020, when Among Us would not see its spike in popularity until September of the same year.
When Ishigami is playing Apex Legends with Gigako, the Bocek is mentioned. The Bocek was only added to the game a few weeks before the chapter's release.
What Do You Mean, It's Not for Kids?: The series is actually serialized in a Seinen magazine, but a lot of readers mistake it for a Shonen series. It's not hard to see why though, as despite being Seinen, there's nothing in it that makes it unsuitable for teenage audience (and is marketed as such in the official English translation). The backstories of the main cast can be quite sad, but nothing too dark and the manga never uses any explicit fanservice elements. This is to a point deliberate. The mangaka has said that he prefers his work to be as widely-read as possible, and is occasionally critical of manga magazines' strict demographic lines in general. This is even mocked In-Universe where the male characters read a manga that is suspiciously similar to the actual manga itself and Ishigami complains about the lack of fanservice.
Translations of Chapter 27 (and Episode 7 of the anime) would attempt to culturally translate the ensuing dick jokes. The most convenient translation has Fujiwara actually talk about her dog's wiener, but a more direct translation some choose is how he stands "tall and erect" on his hind legs. Fujiwara's questions to Shirogane also get edited in translation so that the responses she tries to elicit are also suitable innuendo.
In the second episode of the second season, Kei insists that Kaguya call her by her first name without honorifics, vetoing "Kei-san," and even "Kei-chan" before Kaguya calls her "Kei." The dub has Kaguya call her "Miss Kei" ("Miss" is occasionally used with first names) as a rough equivalent to "Kei-san," but since "-chan" has no direct equivalent in English, Kaguya instead asks if Kei's sure about this before proceeding to call her "Kei."