I Don't Like You At All, Big Brother!! Vol. 1

I Don't Like You At All, Big Brother!!, originally titled Oniichan no Koto Nanka Zenzen Suki Janain Dakara ne!!, began as a web-based project before Kouichi Kusano developed it into a serialized manga. The work emerged from the niche of lighthearted, trope-heavy romantic comedies that explore complex sibling dynamics, a genre that gained significant traction in Japanese internet culture during the late 2000s and early 2010s.

The English release by Seven Seas Entertainment brought this series to a broader international audience, carefully localizing the dialogue to preserve the interplay between the lead characters. Kusano’s art style prioritizes expressive, character-focused panels that emphasize the protagonists' comedic misunderstandings and volatile relationship, which has been received by readers as a quintessential example of the light-novel-inspired manga aesthetic common during its publication era.