History Main / MonsterBrotherCutieSister

* In ''VideoGame/FireEmblemThreeHouses'', there is Mercedes, a [[WhiteMagicianGirl friendly devout]] [[CombatMedic healer]] and an all-around NiceGirl. And then there's the bloodthirsty, murderous [[spoiler:[[BlackKnight Death Knight]], who turns out to be her long-lost half-brother Emile (currently under the identity of Jeritza), with the Death Knight being his SuperpoweredEvilSide that [[MurderMakesYouCrazy manifested]] when his father decided to [[ParentalIncest marry Mercedes]] solely to have [[SuperpowerfulGenetics Crest-bearing]] children with her.]] Normally [[CainAndAbel they fight for opposing sides]], but [[spoiler:upon completing the shared paralogue of Mercedes and Caspar in routes other than Black Eagles you unlock an extra scene after the final defeat of the Death Knight where Mercedes comforts her dying brother and apologizes for being unable to save him in time. Meanwhile, on the Black Eagles route you can have the two reunited and fight together if you recruit Mercedes into your house.]] Notably, [[spoiler:Emile[=/=]Jeritza]] is the rare example of a younger Monster Brother; also notably, he is [[{{Bishonen}} a rather handsome fellow]] under all that scary armor.

* In ''VideoGame/FireEmblemThreeHouses'', there is Mercedes, a [[WhiteMagicianGirl friendly devout]] [[CombatMedic healer]] and an all-around NiceGirl. And then there's the bloodthirsty, murderous [[spoiler:[[BlackKnight Death Knight]], who turns out to be her long-lost brother Emile (currently under the identity of Jeritza), with the Death Knight being his SuperpoweredEvilSide.]] Normally [[CainAndAbel they fight for opposing sides]], but [[spoiler:upon completing the shared paralogue of Mercedes and Caspar in routes other than Black Eagles you unlock an extra scene after the final defeat of the Death Knight where Mercedes comforts her dying brother and apologizes for being unable to save him in time. Meanwhile, on the Black Eagles route you can have the two reunited and fight together if you recruit Mercedes into your house.]] Notably, [[spoiler:Emile[=/=]Jeritza]] is the rare example of a younger Monster Brother.

* In ''VideoGame/FireEmblemThreeHouses'', there is Mercedes, a [[WhiteMagicianGirl friendly devout]] [[CombatMedic healer]] and an all-around NiceGirl. And then there's the bloodthirsty, murderous [[spoiler:[[BlackKnight Death Knight]], who turns out to be her long-lost brother Emile (currently under the identity of Jeritza), with the Death Knight being his SuperpoweredEvilSide.]] Normally [[CainAndAbel they fight for opposing sides]], but [[spoiler:upon completing the shared paralogue of Mercedes and Caspar in routes other than Black Eagles you unlock an extra scene after the final defeat of the Death Knight where Mercedes comforts her dying brother and apologizes for being unable to save him in time. Meanwhile, on the Black Eagles route you can have the two reunited and fight together if you recruit Mercedes into your house.]]

* ''Manga/DemonSlayerKimetsuNoYaiba'': [[spoiler:Gyuutarou]] was hated by everyone, even his own mother, because of his countless birthmarks. His sister, [[spoiler:Ume]], however, was said to be beautiful from an early age.

** Second with [[HugeSchoolgirl Saki Kawasaki]], who isn't ugly either but she's certainly feared because of her loneliness and looking at first sight as a JapaneseDelinquent. But she's so protective of her little siblings as Hachiman is with Komachi.

* Downplayed twice in ''LightNovel/MyTeenRomanticComedySNAFU'':
** First with Hikigaya siblings, Hachiman and Komachi. The former isn't exactly ugly or feared by everyone else, but Komachi certainly is a cutie that has nothing to do with his brother, but Hachiman has a BigBrotherInstinct over her, also inherited to [[ReiAyanamiExpy Rumi Tsurumi]] and [[SenpaiKouhai Iroha Isshiki]].
** Second with [[HugeSchoolgirl Saki Kawasaki]], who isn't ugly either but she's certainly feared because of her loneliness and looking at first sight as a JapaneseDelinquent. But she's so protective of her little siblings as Hachiman is with Komachi.

There's an attractive girl who is generally nice, helpful and pleasant to be around. Her brother, however, is a whole another story: he's got the menacing aura around him. He may be a PerpetualFrowner, or easily irritable, or even have FaceOfAThug (or be actually ugly, up to {{Gonk}} levels). People would likely hesitate to talk to him, or to his sister when he's around.

The brother here is usually the older one, but rarely you may find a menacing younger brother. In many cases, he's [[BigBrotherInstinct fiercely protective]] towards his beautiful sister; occasionally, however, he may be a BigBrotherBully instead.

** First with Hikigaya siblings, Hachiman and Komachi. The former isn't exactly ugly or feared by everyone else, but Komachi certainly is a cutie that has nothing to do with his brother, but Hachiman has a BigBrotherInstinct over her, also inherited to [[ReiAyanamiExpy Ruri Tsurumi]] and [[SenpaiKouhai Iroha Isshiki]].

[[caption-width-right:350:Good luck trying to date her with a brother like this]]

* In ''Literature/{{Mistborn}}'', Quellion - also known as "the Citizen" - is a dictator in charge of Urteau who executes people for their lineage. His little sister Beldre is an innocent civilian and Spook's LoveInterest. [[spoiler: This is ultimately {{subverted|Trope}} when it is revealed Beldre is an [[FunctionalMagic allomancer]], instead of her brother as Spook assumed, and her hostage situation was [[CapturedOnPurpose a ploy]] to sabotage the rebels' plans. Subverted ''again'' when Quellion is revealed to have been subjected to MindControl by [[SentientCosmicForce Ruin.]]]]

[[folder:Television]]

[[folder:Web Comics]]

* In Ryoichi Ikegami's ''[[Manga/SpiderManManga Spider-Man]]'', [[TheProtagonist Yu Komori]] meets Rumiko, a cute schoolgirl who resulted to be the only Yu's friend at that moment. Sadly, at the end of the chapter Yu discovers Rumiko is the little sister of Electro, the first supervillain he fights as Spider-Man [[spoiler:and even ''more'' sadly, the discover occurs few moments after Yu [[AccidentalMurder killed Electro in the process]].]]

* Played with in Television/HemlockGrove: Roman is "normal looking", while his younger sister [[MeaningfulName Shelley]] is ''gigantic'', one-eyed, and "monstrous"-looking. However, [[BeautyIsBad Shelley is a very nice and gentle person, while Roman is a violent inner monster.]]

* ''Manga/SlamDunk'': Hanamichi Sakuragi is in love with Haruko, a lovely schoolgirl who likes basketball, which makes him enter to the basketball club of his school to get a chance on her. Sadly, the leader of the basketball team is her big brother: Takenori Akagi, who's feared even between his partners because of his big size and afro-american factions (Sakuragi [[TheNickNamer calls him]] "[[EverythingsBetterWithMonkeys Gori]]" for a reason).

* Ann's brother Gary from HarvestMoon64 qualifies. He's not monstrous by any stretch of the word, but he's a "Social Disaster" as Ann puts it. Cold, silent, prone to bluntness when he does speak, and clearly doesn't like it when [[HelloInsertNameHere Pete]] takes an interest in Ann. That said, if you take the time to get to know him (which takes some work, believe us) it turns out that Gary is simply Quiet, not really mean.

!!Examples

[[folder:Anime and Manga]]

[[folder:Light Novels]]

[[folder:Literature]]
* Chumley and Tananda from ''Literature/MythAdventures'' form a RedOniBlueOni pair. Chumley is an urbane, thoughtful sasquatch-like monster. His sister is a short-tempered, impulsive drop-dead gorgeous woman who appears human except for her [[YouGottaHaveBlueHair green hair]] and a slight greenish tinge to her skin. It's eventually revealed that they are [[OurTrollsAreDifferent Trolls]] - male Trolls are "Trolls" and female Trolls are "Trollops".
* Inverted in ''Literature/TheNeverMythos'' short story '' Literature/MyOldFriendGideon'' the title Gideon [[spoiler:is an AffablyEvil HumanoidAbomination and his sister "Lili" is a hideous EldritchAbomination described as a "drooling mass" and devours humans]].
* In ''Literature/{{Mistborn}}'', Quellion - also known as "the Citizen" - is a dictator in charge of Urteau who executes people for their lineage. His little sister Beldre is an innocent civilian and Spook's LoveInterest. [[spoiler: This is ultimately {{subverted|Trope}} when it is revealed Beldre is an [[FunctionalMagic allomancer]], instead of her brother as Spook assumed, and her hostage situation was [[CapturedOnPurpose a ploy]] to sabotage the rebels' plans. Subverted ''again'' when Quellion is revealed to have been subjected to MindControl by [[SentientCosmicForce Ruin.]]]]
[[/folder]]

[[folder:Webcomics]]

* ''Manga/HajimeNoIppo'' shows Ippo's afections for the cute Kumi, a nurse who also likes boxing and supports him in his fights. But one of his most difficult fights is against Ryou Mashiba, a dreadful and ugly boxer known for hurting severely his opponents. Things GoneHorriblyWrong for Ippo when he discovers Kumi is Ryou's little sister. After the fight, both boxers become {{friendly rival}}s, but Ryou anyway likes to stalk and scare Ippo for dating with his sister.

* ''Manga/SlamDunk'': Hanamichi Sakuragi is in love of Haruko, a lovely schoolgirl who likes basketball, which makes him enter to the basketball club of his school to get a chance on her. Sadly, the leader of the basketball team is her big brother: Takenori Akagi, who's feared even between his partners because of his big size and afro-american factions (Sakuragi [[TheNickNamer calls him]] "[[EverythingsBetterWithMonkeys Gori]]" for a reason).

Despite of the name, this shouldn't be confused with BizarreSexualDimorphism (but ''may be'' related in some way.)

* ''Manga/SlamDunk'': Hanamichi Sakuragi is in love of Haruko, a lovely schoolgirl who likes basketball, which makes him enter to the basketball club of his school to get a chance on her. Sadly, the leader of the basketball team is his big brother: Takenori Akagi, who's feared even between his partners because of his big size and afro-american factions (Sakuragi [[TheNickNamer calls him]] "[[EverythingsBetterWithMonkeys Gori]]" for a reason).

* Chumley and Tananda from ''Literature/MythAdventures'' form a RedOniBlueOni pair. Chumley is an urbane, thoughtful sasquatch-like monster. His sister is a short-tempered, impulsive drop-dead gorgeous woman who appears human except for her green skin. It's eventually revealed that they are [[OurTrollsAreDifferent Trolls]] - male Trolls are "Trolls" and female Trolls are "Trollops".

* ''Manga/DemonSlayerKimetsuNoYaiba'': [[spoiler:Gyuutarou]] was hated by everyone, even his own mother, because they considered his birthmarks ugly. His sister, [[spoiler:Ume]], however, was said to be beautiful from an early age.