Follow TV Tropes


Manga / I Don’t Like You at All, Big Brother!!

Go To

Nao Takanashi is an ordinary junior high school girl who — title notwithstandingreally 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 Porn Stash of anything not related to Brother–Sister Incest, Nao comes upon a family photo album full of childhood photos of Shuusuke and a girl in 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 Not Blood Siblings, she's elated that she can finally pursue a full-fledged relationship with him. However, a blonde girl in pigtails appears shortly thereafter... and all hell breaks loose.

I Don't Like You at All, Big Brother!!, (Oniichan no Koto Nanka Zenzen Suki ja Nai Dakara ne!!) is a romantic comedy manga by Kusano Kouichi, which ran in the seinen publication Web Comic High! from 2008 to 2016. It has an anime adaptation that first aired in Winter 2011. The manga has been licensed by Seven Seas Entertainment.


  • Animal Motif: Baby penguin versus Cat.
  • Beach Episode: Early on, of course. Chapter 3/Episode 4.
  • Belly Dancer: Ran is a very dedicated cosplayer who adopts the persona of "Princess Leila". In her effort to find a mate, she performs a ritual dance; she performs one for Shusuke in private when she feels he's the one for her.
  • Blackmail: Kondou threatens Shuusuke with telling Nao of his Porn Stash after he rips off her yaoi magazines. Then again, that's a moot point, considering the kind of girl Nao is.
  • Caught with Your Pants Down: Shuusuke was completely nonplussed when Iroha told him how much he masturbates (five times a day!), down to which hand he uses. It turned out she snooped him through a telescope.
  • Censor Box: A baby penguin for Nao, as well as a cat for Iroha (both of which become their Animal Motifs). 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 Panty Shot in the opening of every episode.
  • Childhood Marriage Promise: Iroha gets this from Shuusuke in exchange for Playing Doctor with him. Shuusuke didn't think she was serious.
  • Gratuitous English: In the second episode: Kurosaki tells Shusuke to "Come and Join Us"
    • And Shuusuke replies with "Let's begin."
    • The OP is filled with very strange, hard-to-hear examples. "It's not vice!" "Please teach me sweet sunshine kiss!"
  • Nao was puzzled by Yamashiro's little stepsister fetish.
  • Psycho Lesbian: Rin "Clone" Yatagai towards Nao. But ends up kissing Iroha and falls in love with her instead, much to Iroha's horror.
  • Tsundere: Nao play-acts this when she believes Shuusuke has had enough fanservice.
    • The title of the series as well.
  • Victorious Childhood Friend:
    • Captain Kirishima wants to have one.
    • Iroha is determined to become one.
  • Visual Innuendo: Everything at the festival in Episode 9, including fireworks symbolizing orgasm. Then the joke is made obvious at the end of the episode, implying that earlier Nao had climaxed at Shuusuke's touch.

Alternative Title(s): Oniichan No Koto Nanka Zenzen Suki Janain Dakara Ne