Summary
I don’t need any deep relationships. I have no desire for a girlfriend, and I only require one friend who holds any value to me. Ever since I threw out my youth for the sake of efficiency, there is one person who keeps entering the bedroom of Ooboshi Akiteru. She’s neither my little sister nor my friend. She’s nothing more than a bothersome, annoying Kouhai, as well as my friend’s little sister: Kohinata Iroha. “Senpai, let’s go on a date~! Did you think I’d say that~?”. Rather than blood, it seems that energy drinks run through her veins. She keeps occupying my bed, and she tries her best to seduce me with whatever method she can play to her favor. She’s a girl who’s constantly annoying and obnoxious around me. Even though I’m busy all day long, she doesn’t care. And in case you’re wondering why all these envious gazes are directed at me, it’s because Iroha is actually really popular. She’s an honor student at our school with top grades to boot, and she’s known for being kind and proper to anyone she meets. …Hey now, why are you only so annoying when you’re around me?
—
**Links:**
– [ Official Twitter](https://twitter.com/imouza_PR)
– [ Author’s Twitter](https://twitter.com/mikawaghost)
– [ Manga Artist’s Twitter](https://twitter.com/hiraminmi)
– [Official LN (JP)](https://ga.sbcr.jp/sp/imouza/)
– [Official LN (EN)](https://j-novel.club/s/my-friend-s-little-sister-has-it-in-for-me)
– [Alternative Raw](https://www.ganganonline.com/contents/tomodachino)
- Ch. 19 Only Mine And My Friend's Little Sister's World 02/15/2025
- Ch. 18 My Friend's Little Sister Is Evidently Annoying 02/15/2025
- Ch. 17 We Are Resilient Towards The Theater Club's Special Training 02/15/2025
- Ch. 16 The Fake Girlfriend is Obstinate Towards the Response of the Confession 02/15/2025
- Ch. 15 My Friend's Little Sister Is Always Prim and Proper 02/15/2025
- Ch. 14 Only The Sports Club Advisors Are Harsh 02/15/2025
- Ch. 13 My Friend's Little Sister is Only Kind In Reality 02/15/2025
- Ch. 12 The People Around Me Are Only Weird Towards me 02/15/2025
- Ch. 11 The Girl Who Confessed to Me is Only Cold In Reality 02/15/2025
- Ch. 10 02/15/2025
- Ch. 9 My Friend's Little Sister is Annoying Towards The Friend's Enemy - 2 02/15/2025
- Ch. 8 My Friend's Little Sister is Annoying Towards the Friend's Enemy - 1 02/15/2025
- Ch. 7 My Friend's Little Sister and I are Only Serious As The Two Of Us 02/15/2025
- Ch. 6 My Friend and I are Annoying for Mashiro's Sake 02/15/2025
- Ch. 5 Only Iroha, Ozu, Sumire, and I are Annoying Towards Mashiro 02/15/2025
- Ch. 4 My Friend's Little Sister is Only Breasts Towards Me 02/15/2025
- Ch. 3 The Admired Teacher is Only Perverted Towards Me 02/15/2025
- Ch. 2 The Company President's Companion is Only Cold Towards Me 02/15/2025
- Ch. 1.3 My Friend's Little Sister is Only Annoying to Me 02/15/2025
- Ch. 1.2 My Friend's Little Sister is Only Annoying to Me 02/15/2025
- Ch. 1 My Friend's Little Sister is Only Annoying to Me 02/15/2025