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3%% This page has been alphabetized. Please add new examples in the correct order. Thanks!
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7Relative, family member, or longtime friend of a character who is "blind" to their actions.
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9If this is a heroic character or someone designed to impress, the sibling -- especially if they're older -- is hypercritical and only think of them as the doofy kid who wet the bed till they were 10. Conversely, a lame character will be liked for their hidden good qualities due to their close and protective relationship with the sibling. In this case, there's major overlap with being a FanOfUnderdog.
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11They might act as a MoralityPet, but in extreme cases this can drive a [[ClingyJealousGirl one-sided dependency]] on [[BrotherSisterIncest him]].
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13Sometimes it's a fan instead of an actual sibling, and a chain is made where TheHero is a fan of a more famous hero, and the fan of TheHero sees them the same way but won't acknowledge TheHero acts like a dork most of the time.
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15A related trope is NeverAcceptedInHisHometown.
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18!!Examples:
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22[[folder:Anime & Manga]]
23* Subverted in ''Manga/{{Airmaster}}'', where Maki's little sister, unlike everyone else, describes her as a huge clumsy ogre who gets stupider each time they meet.
24* Eve from ''Literature/{{Baccano}}'' is completely convinced that her big brother Dallas is a good person, despite increasing evidence otherwise.
25* Yuzu in ''Manga/{{Bleach}}'' is similarly oblivious to her brother's powerful abilities and the supernatural activities and entities that surround them. This is most likely due to her faint spiritual awareness, especially in comparison to her sister Karin, who knows all about what Ichigo is and does, eventually confronting him about it in the Arrancar arc.
26* In ''Manga/BloomIntoYou'', Touko Nanami, a shy and untalented girl with mediocre grades, looked up to her older sister Mio, who was seven years older than her, the StudentCouncilPresident and TheAce at her school. After Mio's death in her second year of high school, Touko sought to "become" the person Mio was, and became student council president in large part to revive the yearly play, which was canceled as a result of Mio's death. During preparations or the play, Touko learns from Mio's fellow student council member Ichigaya that Mio was actually a bit of a slacker who delegated duties to him and the other council members(Touko did most of the work in her first year on the council), and even got them to do her homework. As a result, [[BrokenPedestal Touko, who'd idealized Mio]], is deeply shaken and questions her goal of becoming Mio.
27* Nunnally in ''Anime/CodeGeass'' missed that whole bit about her brother being TheStrategist for LaResistance during all those times when he was cutting class. Justified, since he goes out of his way to hide it from her and her ill girl status (including the fact she's blind) means it's very difficult for her to investigate. Although, the fact that she is very good at recognizing voices (being blind) yet does not recognize Zero's voice as her brother's despite the digital distortion being very slight does make her fairly oblivious.
28* Inverted and subverted in ''Manga/DeadmanWonderland''; [[spoiler: Yoh, the apparently oblivious ''older'' sibling, reveals he's known about his little sister Minatsuki's CuteAndPsycho tendencies all along, but wants to protect her anyway.]]
29* In ''Manga/DeathNote'', Sayu Yagami never finds out that her brother is really Kira.
30* Both of Chitose's "adopted" sisters in ''Manga/HappyLesson'' frequently handwave their brother's grouchy outbursts.
31* Inverted in ''Anime/{{Kamichu}}''. Shoukichi is the only one that seems to realize just how weird everything is, including the cat's possession.
32* In ''Manga/LoveHina'', Kanako's [[RetCon fond memories]] of her stepbrother, Keitaro, makes her somewhat oblivious to his failures. But maybe sympathy, among [[BrotherSisterIncest other things]] clouds her judgement.
33* Carole Amherst, in ''Webcomic/MutantNinjaTurtlesGaiden'', thinks that her brother's funeral was staged and he's now become an actor who plays the role of a mutant turtle studying with fellow actor Raphael. If you think that's oblivious, read chapter six of the comic.
34* Sasuke from ''Manga/{{Naruto}}'' is unaware that Itachi killed his clan due to their planned coup d'etat so that the Hidden Leaf could be safe. When he found out, [[GoMadFromTheRevelation he did not]] [[DisproportionateRetribution take it]] very well.
35* Pop Harukaze from ''Anime/OjamajoDoremi'', at least for the first half of season 1. Once she becomes an Ojamajo herself she subverts the trope both in regards of what's going on and later on, her relationship with Doremi.
36* In ''Manga/OnePiece'', the older brother Ace is horrified and angry when Luffy [[spoiler:goes to [[TheAlcatraz Impel Down]] to rescue him]] because he believes that Luffy's just being the typical reckless, idiotic younger brother that he remembers that always made him worry. In an interesting inversion, Luffy himself at first [[spoiler: doesn't want to go to rescue his big brother after discovering his life is in danger via his burning [[ChekhovsGun Vivre Card]] and explains that his older brother is strong and wouldn't appreciate being rescued (it's also pointed out that if the person in danger gets out of danger, their Vivre Card returns to normal). It's only when he discovers that Ace is on death row that he decides to go rescue his brother.]]
37* ''Anime/SCryEd'' has the reverse situation, where Kanami seems oblivious to Kazuma's powerful Alter abilities and sees him as a kind-hearted layabout. It's later shown that Kazuma intentionally acts uncharacteristically pathetic around Kanami to encourage her to be more independent, apparently so that she'll have an easier time coping if the male half of their two-member family were to die violently.
38* In ''Manga/{{Sekirei}}'', the younger sibling is also a part of the plan, but doesn't know of her brother's involvement in it.
39* Subverted in ''Manga/StrawberryMarshmallow'': Chika has no illusions about her elder sister Nobue. Still, the trope applies, as Nobue is the CoolBigSis to all four girls regardless.
40* Yuri in ''Manga/SpyXFamily'' as a child was completely oblivious to the implications of his sister returning home from her job covered in blood after being reassured it wasn't her own blood.
41* Mokuba Kaiba (''Anime/YuGiOh'') is absolutely devoted to his older brother, Seto. Indeed, he is the only regular character who calls Seto by his first name in the dub (in the Japanese, he calls him "nii-sama").
42** Though he's not exactly oblivious in either the manga or anime. In the former, he even [[MrExposition talks about]] Seto's [[UsedToBeASweetKid childhood]] and rise to power.
43* Shuuichi, the younger stepbrother of [[NobleDemon Kurama]] in ''Manga/YuYuHakusho'', is completely oblivious to his brother's demonic heritage and supernatural activities. He's also presumably oblivious to the fact that he has a demon inside his body that can possess him, or that he's being used as a hostage to keep Kurama in line.
44** Yukina in ''Anime/YuYuHakusho'' doesn't know Hiei is her older twin brother. However, when having a conversation with Hiei about her past and her brother, she remarks that she thinks Hiei's response is something her brother would say. In an anime-only special, Genkai tells Hiei that Yukina is not as naive as he thinks after he claims to have failed to find her brother.
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47[[folder:Films -- Animation]]
48* In ''WesternAnimation/{{Frozen|2013}}'', Anna is convinced her [[NotEvilJustMisunderstood seemingly-evil older sister Elsa is just misunderstood]], remembering how close the two of them used to be when young, even when Elsa ends up looking ''really'' bad after seemingly ignoring Anna for most of their childhood, shooting ice spikes at Anna in the middle of an argument, and then promptly fleeing the kingdom, leaving the country in [[EndlessWinter a magical blizzard in July]]. She turns out to be right -- most of the issues really are misunderstandings or even accidents.
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51[[folder:Films -- Live-Action]]
52* Parodied in ''Film/JohnnyDangerously'' when at one point the Pope (Creator/DomDeLuise) reminds all the neighborhood residents that Johnny's mom and brother think he's just a nightclub owner and not the notorious gangster Johnny Dangerously, and to keep the secret from them.
53* Reuben of ''Film/LittleOdessa'' knew about his brother's shady dealings, but apparently managed to put it out of his mind for most of the time and still looked up to him.
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56[[folder:Literature]]
57* ''Literature/CaptivePrince'': Overlapping with GoodCannotComprehendEvil, Damen idolized his older half-brother [[RoyalBastard Kastor]], never realizing how much Kastor despised him for supplanting him as Crown Prince until Kastor [[TheUsurper usurped the throne]] and had Damen MadeASlave. Even then, he doesn't realize that Kastor [[spoiler:killed their father]] and tried to kill Damen in childhood, and in the end, [[spoiler:Damen still lets down his guard around Kastor long enough for Kastor to make one last murder attempt.]]
58%%* Tella sometimes appears to be this in Literature/{{Caraval}}.
59* ''Literature/TheDresdenFiles'': Harry Dresden played this once in the novella ''Backup''. [[spoiler:It's told from the point of view of Thomas, Harry's older brother. A woman hires Harry to find a kidnapped child, pressing two of Harry's {{Berserk Button}}s. What Harry doesn't know is that the woman is a bad guy manipulating him into finding a book of rituals that Harry will find with the child, and when he hands it over to the White Council, mass-producing the book will ''increase'' its evil power, not diffuse it.]] Thomas, who can't tell this to Harry because of that very reason, has to pull all sorts of stunts to get things to work out okay, including letting Harry beat him up.
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62[[folder:Live-Action TV]]
63* Gioffre of ''Series/TheBorgias'' doesn't seem to take any notice of the corrupt political world the rest of his family are embroiled in.
64* Lyle Bennet on ''Series/{{Heroes}}'' was pretty good about this for a while. Then he found out and ran away from the discovery. Then he got over it and became somewhat competent.
65* ''Series/{{Supernatural}}'': Even though Dean ''defines'' "morally shady," Sam is emphatic that he's more than a killer or a grunt and that he has looked up to Dean his entire life. He lets Dean take the lead in most aspects of their lives, trusts him absolutely (up until Season 9...) and craves Dean's approval. Sam's been shown to go a bit unhinged when he believes Dean has rejected him or that he's disappointed Dean, even though Sam is often Dean's MoralityChain and keeps Dean's most destructive tendencies at bay. Bear in mind that other characters' descriptions of Dean include "two steps away from being a serial killer."
66** [[spoiler: It's been noticed that the normally intelligent and perceptive Sam has been remarkably slow on the uptake as to how the Mark of Cain/First Blade are affecting his brother through Season 9, mostly just glancing worriedly at Dean and gently broaching the topic on a few occasions. WordOfGod has suggested that when Sam found out about the Mark of Cain, he just kind of assumed Dean knew what he was doing and could handle it, and it's taken quite some time for Sam to fully grasp that neither of those things are true. There have been other factors at play as well, including a major rift between the brothers, but part of the issue seems to be that it hadn't occurred to Sam (who has often fought internal supernatural forces throughout the series) that Dean could be vulnerable to similar internal forces.]]
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69[[folder:Video Games]]
70* ''Franchise/AceAttorney'':
71** Ema Skye is ''certain'' that her big sister didn't commit the murder a witness and a few cameras caught her doing. [[spoiler: She's right. The guy was murdered beforehand by Damon Gant, who blackmailed Lana into helping him dispose of the body.]]
72** In ''The Great Ace Attorney'', Barok van Zieks had all the clues to put together the Professor's identity, but the poor guy absolutely ''refused'' to believe [[spoiler: it was his brother Klint]].
73* In Episode 1 of ''VideoGame/LifeIsStrange2'', Daniel seems to buy his older brother's lie about them being on a camping trip, when in actuality, they are fleeing from the law. [[spoiler: He finds out the truth at the end of the episode.]]
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76[[folder:Visual Novels]]
77* The ''VisualNovel/FateHollowAtaraxia'' character [[spoiler:Sakura]] is convinced that nobody but her sees her elder sister as the bossy miser she "really" is. She dismisses said sister's magical skills, many selfless deeds, and successful career as some sort of deception to fool people (rather than an indication that [[spoiler:Sakura]] is wrong about her), probably to avoid feeling inferior to her.
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80[[folder:Web Original]]
81* In ''Series/{{Noob}}'', one of the titlular guild's members has a younger brother who has been playing the {{MMORPG}} in which the series is set much longer than him and reached a much higher level. He doesn't notice for quite a while, despite the fact that they sometimes take turns on the same computer.
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84[[folder:Western Animation]]
85* Subverted with Gaz on ''WesternAnimation/InvaderZim''; she is perfectly aware that her older brother Dib is trying to thwart an alien invasion, she just doesn't care.
86* In ''WesternAnimation/{{Recess}}'', Vince [[BigBrotherWorship considers his older brother, Chad, to be the epitome of coolness]], and is thus shocked when his friends reveal that he's a nerd.
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