Oniichan no Koto nanka Zenzen Suki ja Nai n da kara ne!!

Meet Nao, a seemingly ordinary high school girl whose home life is anything but. Her older brother, Shusuke, is a constant source of exasperation, and Nao is quick to declare her complete lack of affection for him—a sentiment she repeats with a vehemence that perhaps belies her true feelings. As if navigating the complexities of adolescence weren't enough, Nao finds herself caught in a whirlwind of comical misunderstandings and increasingly bizarre situations, often involving her brother and a growing circle of eccentric acquaintances. This offbeat comedy dives headfirst into the awkward, endearing, and often cringeworthy moments of coming of age. With a unique blend of exaggerated humor and surprisingly heartfelt moments, it explores the intricate dynamics of family, the bewildering journey of self-discovery, and the hilarious chaos that ensues when everyone around you seems to have their own peculiar brand of chuunibyou.

✦ AI-drafted summary