Synopsis

High School junior Takanashi Nao has a problem: she has a crush on her dreamy older brother, Shuusuke. Fortunately, when Nao discovers that she was adopted as a child and they’re not related by blood, it seems like the coast is clear—but Shuusuke just doesn’t see it that way.

To make matters worse, Nao finds herself in direct competition against Shuusuke’s hot childhood friend, Iroha, not to mention class president Mayuka. As all three girls vie for Shuusuke’s attention, Nao soon learns that all is fair in love and war!

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Related works

3 works in this family
Manga this work
I Don't Like You at All, Big Brother! this page
Anime adaptation
I Don't Like You at All, Big Brother! Onii-chan no Koto nanka Zenzen Suki Janain Dakara ne!! Special 1 ep

Editions

1 releases + New edition

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6 revisions View all
  1. r6 source · import Imported from AniList +1 field 4 weeks ago
  2. r5 source · import Imported from AniList +1 field Oct 2026
  3. r4 source · import Imported from AniList +1 relation Oct 2026

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