History Manga / OniichanNoKotoNankaZenzenSukiJaNaiNDakaraNe

* AllWomenAreDomsAllMenAreSubs: Shuuske and his father.

* MyGodWhatHaveIDone: Shuusuke has this reaction when he realizes that [[spoiler:his past perversions have made Iroha [[StalkerWithACrush what]] [[{{Yandere}} she]] [[LoveMakesYouCrazy has become]] [[RapeIsLove today]], and even [[TheAtoner tries to make a complete turnaround on his lifestyle]]. Not that it sticks thanks to both Nao and Iroha]]. He gets over it.

* HeyItsThatVoice:
** [[Creator/EriKitamura Saya]] is now the perverted little sister of [[{{Durarara}} Mikado Ryuugamine]], and [[SayakaOhara Beatrice]] is their mother.
*** Speaking of Creator/EriKitamura, it seems [[Anime/AngelBeats Yui]] has gotten a whole lot more perverted...
** [[MarinaInoue Yoko]] shows up as a sex-crazed childhood friend of Shuusuke's.

** [[EriKitamura Saya]] is now the perverted little sister of [[{{Durarara}} Mikado Ryuugamine]], and [[SayakaOhara Beatrice]] is their mother.
*** Speaking of EriKitamura, it seems [[Anime/AngelBeats Yui]] has gotten a whole lot more perverted...

* HotMom: Shuusuke's mom is very easy on the eyes.

* NaughtyTentacles: Episode 4, during one of Shuusuke's dreams.

* RapeIsLove: Iroha is more than willing to attempt this on Shuusuke because of [[spoiler:their [[ChildhoodMarriagePromise marriage promise]]]].
** [[LaserGuidedKarma It comes back to haunt her in the form of]] [[spoiler:Rin]].

* AllMenArePerverts: The members of the AGE (All Genre Ero), as well as Shuusuke's father.

* [[StrangeGirl Strange Twins]]: Rin and Ran.

''Oniichan no Koto Nanka Zenzen Suki ja Nai Dakara ne!!'' ("I don' like you at all, Big Brother, alright?!") is a romantic comedy manga by Kusano Kouichi that started in 2008 with an anime adaptation for the Winter2011Anime block.

* TooSoon: Tsunami scene on the school rooftop in Episode 10. GIF here, viewer discretion advised [[http://i51.tinypic.com/xaorx2.gif]]

''Oniichan no Koto Nanka Zenzen Suki ja Nai Dakara ne!!'' ("I Don't Like You at All, Big Brother!!") is a romantic comedy manga by Kusano Kouichi that started in 2008 with an anime adaptation for the Winter2011Anime block.

* PatientChildhoodLoveInterest: Subverted -- Iroha is [[PsychoLesbian not very patient]].

* TallDarkAndBishoujo: Haruka, Kondou and Rin.

* ShoutOut: When the AGE goes to Akihabara, we see posters for ''Manga/KissXSis'', ''VisualNovel/YosugaNoSora'' and ''Manga/{{Chu-Bra}}'', the anime adaptations of which, like this series, were produced by Starchild.

* DifferentAsNightAndDay: Ran and Rin.

* PrincessCurls: Rin and Ran.

One day, whilst purging her brother's PornStash of anything not related to BrotherSisterIncest, Nao comes upon a family photo album full of childhood photos of Shuusuke and a girl in [[GirlishPigtails pigtails]], but without her. When she confronts her parents, they tell her the truth: ten years prior, their close friends perished in a car accident, leaving Nao, their daughter, the sole (albeit amnesiac) survivor. But instead of angsting over the fact that she and Shuusuke are NotBloodSiblings, she's ''elated'' that she can finally pursue a full-fledged relationship with him. However, a girl in [[GirlishPigtails pigtails]] appears shortly thereafter... and all hell breaks loose.

* ADateWithRosiePalms: According to [[StalkerWithACrush Iroha]], Shuusuke uses his left hand, and 5 times a day on average.

* FirstEpisodeSpoiler: [[NotBloodSiblings Nao is adopted]] and is the sole survivor of a car crash that killed his parents, who happen to be Shuusuke's parents' friends.

''Oniichan no Koto Nanka Zenzen Suki ja Nai N Dakara Ne'', or, much more simply for English speakers, ''I Don't Like You at All, Big Brother'', is a romantic comedy manga by Kusano Kouichi that started in 2008. An anime adaptation began airing in January 2011.

Junior high school girl Nao Takanashi, [[NonIndicativeTitle contrary to the series' title]], [[BigBrotherAttraction really likes]] her older brother Shuusuke (though he is unaware of this), who turns out to feel the same for her, but manages to hold himself back out of respect for their relationship.

One day, whilst purging her brother's PornStash of anything not related to BrotherSisterIncest, Nao comes upon a family photo album full of childhood photos of Shuusuke and a girl in [[GirlishPigtails pigtails]], but without Nao! When she confronts her parents, they tell her the truth: ten years prior, their close friends perished in a car accident, leaving Nao, their daughter, the sole (albeit amnesiac) survivor. But instead of angsting over the fact that she and Shuusuke are NotBloodSiblings, she's ''elated'' that she can finally pursue a full-fledged relationship with him. However, a girl in [[GirlishPigtails pigtails]] appears shortly thereafter... and all hell breaks loose.

* AcupAngst: Nao when she notices the bust size of [[ThoseTwoGirls Hirorin, Haruka]] and Kondou.

* AllMenArePerverts: The members of the AGE (All Genre Ero)
** Also [[GenderInvertedTrope gender inverted]] with Nao and Iroha
** Shuusuke's Dad too.
* AllWomenAreDomsAllMenAreSubs - Shuuske and his dad

* {{Bishonen}}: captain Kirishima of the AGE.
* {{Blackmail}}: Kondou does this to Shuusuke after he rips her Yaoi magazines and she threatens to tell Nao about his porn. Which is HilariousInHindsight considering who [[StalkerWithACrush Nao]] is.

* ButtMonkey: Shuusuke can never seem to catch a break
* CaughtWithYourPantsDown: Shuusuke was completely nonplussed when Iroha told him how much his masturbates ([[AllMenArePerverts 5 times a day!]]), down to which hand he uses. It turned out she snooped him through a telescope.
* CensorBox: Averted and played straight in the form of a baby penguin for Nao. Strangely, like in Rosario+Vampire the censor boxes seem to be used almost entirely at random, which is especially strange considering that Nao provides an extreme close-up, uncensored PantyShot in the opening of every episode.
** Episode 2 introduces a cat as a censor block for Iroha.
** And later becomes their AnimalMotif
* CherylBlossom: Kondou
* ChildhoodMarriagePromise: Iroha gets one of these from Shuusuke in exchange for playing doctor with him. Shuusuke didn't think she was serious.

** Add Kondou it gets even worse.

* EroticEating: Episode nine.

* FestivalEpisode: Episode nine.

*** Speaking of [[EriKitamura Eri Kitamura]] it seems [[Anime/AngelBeats Yui]] has gotten a whole lot more perverted...

** Nao was puzzled by Yamashiro's little step-sister fetish.

* LaserGuidedKarma: [[spoiler:Rin]] stalks Nao, and later {{forceful kiss}}es Iroha and then abducts her.
* LeaningOnTheFourthWall: the conversation in the anime/manga shop in episode 7 could easily be about the show itself and its presumed audience.
* LikesOlderWomen: Kurosaki of AGE

* LoveMakesYouCrazy: Iroha. [[YourMileageMayVary Whether or not this is funny]] depends on the viewer.

* MistakenForGay: Well, that's what Shuusuke gets for buying BL magazines. [[{{Blackmail}} Before you ask, it wasn't his choice to start buying them in the first place.]]
* ModestyTowel: Subverted hardcore in Chapter 1 of the manga/episode 1 of the anime.
* MyGodWhatHaveIDone: Shuusuke has this reaction when he realizes that [[spoiler:his past perversions have made Tsuchiura Iroha [[StalkerWithACrush what]] [[{{Yandere}} she]] [[LoveMakesYouCrazy is]] [[RapeIsLove today]], and even [[TheAtoner tries to make a complete 180 on his lifestyle]]. Not that it sticks thanks to both Nao and Iroha.]]
** He gets over it.

* NotBloodSiblings: [[IncestSubtext So now Nao is free to obsess about her big brother!]]

* OnlySaneMan: Haruka of ThoseTwoGirls

* PantyShot: In the manga especially. Lampshaded with the line: "That panty-shot is pointless!"
* PatientChildhoodLoveInterest: Subverted for Iroha is not very patient.
* [[spoiler: PlayingDoctor: That's how Shunsuke winds up getting a ChildhoodMarriagePromise with Iroha.]]

* PornStash: Shusuke's is [[OverNineThousand of epic proportions]].

* RapeIsLove: Iroha is more than willing to attempt this on Shuusuke because of [[spoiler: their [[ChildhoodMarriagePromise marriage promise]]]].

* RapeIsOkayWhenItsFemaleOnMale: Averted: Shuusuke is rather traumatised when he's forcibly french-kissed and molested by Tsuchiura Iroha.

* ShoutOut: When the AGE goes to Akihabara, we see posters for ''KissXSis'', ''YosugaNoSora'', and ''{{Chu-Bra}}'', all series under Starchild (which also produces this one).

** In episode 10 there was a [[KoreWaZombieDesuKa Masou-Shoujo]] cosplayer.

* StalkerWithACrush: Nao knows when he learned to collect pornography, read it and hide it. [The stuff Iroha's done is too long to list here.
--> ''[[LampshadeHanging Shuusuke doesn't have any privacy does he?]]''
* StealthPun: May or may not be intentional, but often, the CensorBox...for English-speaking audiences, anyway.
* [[StrangeGirl Strange Twins]]: Rin and Ran
* SuspiciouslySpecificDenial: No, the father doesn't find Shuusuke's SM porn one bit erotic.

* TheJimmyHartVersion: Averted, they play Haddaway's "What Is Love?" song during the opening of episode 7.
** They also play Lady Gaga's "Bad Romance" during the ending credits.
*** Note that both of those songs were [[{{Troll}} substituted]] by {{fansub}} group Gotwoot, and were not part of the actual production.
* ThisLoserIsYou: The AGE, taken to [[LeaningOnTheFourthWall Leaning on the Fourth Wall]] levels on their trip to Akihabara.

* VisualInnuendo: ''everything'' at the festival in ep.9, including fireworks symbolizing orgasm. Which leads to a kind of [[FridgeHorror fridge squick/fetish fuel]] after this joke is made obvious at the end of the episode, implying that earlier Nao had orgasmed at her oniichan's touch.
* WhatDoYouMeanItsNotAwesome: Shuusuke's ultra high speed glancing look.

*** Speaking of [[EriKitamura Eri Kitamura]] it seems [[Anime/AngelBeats Yui]] has gotten a whole lot more perverted... And [[KodomoNoJikan Rin]]... stays about the same, really.

** There's also ''KodomoNoJikan''.

* LesYay: [[spoiler:Rin]] for Nao and then she switches to Iroha

* Bishonen: captain Kirishima of the AGE.

* HimeCut: It's better to count how many girls don't have the style.

* ADateWithRosiePalms: According to [[StalkerWithACrush Iroha]], Shuusuke uses his left hand.
** Also, according to her the average is 5 times a day.

* CakeEater: Kurosaki of AGE

* OverlyLongTitle: Damn horribly straight to the point where it was shortened by fans as "Onichan no Koto". Anime {{eyecatch}}es swplit the title into ''three'' lines.

* LongTitle: Damn horribly straight to the point where it was shortened by fans as "Onichan no Koto".

*** Speaking of [[EriKitamura Eri Kitamura]] it seems [[AngelBeats Yui]] has gotten a whole lot more perverted... And [[KodomoNoJikan Rin]]... stays about the same, really.

* ChildhoodMarriagePromise: Iroha gets one of these from Shuusuke in exchange for [[IfYouKnowWhatIMean playing doctor]] with him. Shuusuke didn't think she was serious.

* DatePeepers: Nao does this during Shuusuke's date with Iroha; and later [[ThoseTwoGuys Those Two Girls]] peep on them. Taken to [[HilarityEnsues hilarious]] [[UpToEleven extremes]] in episode 3 of the anime when [[AllMenArePerverts the AGE group]] shows up and spies on them, too.

* [[ThoseTwoGuys Those Two Girls]] : Haruka and Hirono