For high schooler Akiteru Oboshi, the whole youthful experience thing—like fun, friendships, and even having a girlfriend—is a complete waste of time. So when his best friend’s sister, Iroha Kohinata, keeps teasing him, Akiteru naturally finds it annoying. She practically lives in his room, she’s always on his bed, she’s just a raging storm of clinginess! Why is she only annoying around him?!
Cast: Haruki Ishiya, Sayumi Suzushiro, Tomori Kusunoki
Season 1
12 episodes
1. My Friend's Little Sister Has It In for MeAkiteru just wants to work toward his future, but his friend's little sister won't allow him any peace.TV-14CC24minOct 4, 2025
2. The Cousin I Haven't Seen in Years Is Cold to MeNow that Mashiro has moved to his school, can Akiteru manage to make her open up to him?TV-14CC24minOct 11, 2025
3. Only I Can Be a Pain to My Uncle’s DaughterAkiteru decides to throw a welcome party for Mashiro, but first he must convince her to attend.TV-14CC24minOct 18, 2025
4. My Friend's Little Sister Might Be a DelinquentAkiteru and Iroha recall how they first met.TV-14CC24minOct 25, 2025
5. My Friend's Little Sister Keeps Getting Close to MeA look back at how Iroha came to be the voice actress for 05th Floor Alliance.TV-14CC24minNov 1, 2025
6. My Friend's Little Sister Has It In for My Friend's EnemyWhile at the mall with Mashiro and Iroha, Akiteru learns why Mashiro left her old school.TV-14CC24minNov 8, 2025
7. The Girl Who Confessed to Me Is Cold to Me in RealityAkiteru tries to give a proper reply to Mashiro's love confession, but she's brutally cold to him in person.TV-14CC24minNov 15, 2025
8. Everyone I Know Is Being Weird With MeSumire asks Akiteru for help with a problem that could endanger her future with 05th Floor Alliance.TV-14CC24minNov 22, 2025
9. My Fake Girlfriend Gets Tough When I Respond To Her ConfessionAkiteru and Iroha head to Otoi's studio to record for the game, but Iroha has ideas of her own.TV-14CC24minNov 29, 2025
10. My Friend's Little Sister Only Gets an Apology from MeAkiteru must clear the air with Iroha to keep 05th Floor Alliance running smoothly.TV-14CC24minDec 6, 2025
11. We're Perfect for Training the Drama ClubWith 05th Floor Alliance's help, the drama club is ready for the big competition... but then disaster strikes.TV-14CC24minDec 13, 2025
12. My Friend's Little Sister Really Does Have It In for MeCan Akiteru save the drama club and secure 05th Floor Alliance's future?TV-14CC24minDec 20, 2025
Viewers also watched
My Friend's Little Sister Has It In for Me!
For high schooler Akiteru Oboshi, the whole youthful experience thing—like fun, friendships, and even having a girlfriend—is a complete waste of time. So when his best friend’s sister, Iroha Kohinata, keeps teasing him, Akiteru naturally finds it annoying. She practically lives in his room, she’s always on his bed, she’s just a raging storm of clinginess! Why is she only annoying around him?!
Creators and cast
- Created by
- Kazuo Tsutsui, Shintaro Yoshitake, Kotaro Asanuma, Natsuko Nagase
- Studio
- BLADE, NK Animation, Asmik Ace
