Animation20251 seasonTV-14★ 7.3
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?!
Where to watch
Provider data via JustWatch.
Episodes
1My Friend's Little Sister Has It In for Me
Oct 4, 202524 min
Akiteru just wants to work toward his future, but his friend's little sister won't allow him any peace.
2The Cousin I Haven't Seen in Years Is Cold to Me
Oct 11, 202524 min
Now that Mashiro has moved to his school, can Akiteru manage to make her open up to him?
3Only I Can Be a Pain to My Uncle’s Daughter
Oct 18, 202524 min
Akiteru decides to throw a welcome party for Mashiro, but first he must convince her to attend.
4My Friend's Little Sister Might Be a Delinquent
Oct 25, 202524 min
Akiteru and Iroha recall how they first met.
5My Friend's Little Sister Keeps Getting Close to Me
Nov 1, 202524 min
A look back at how Iroha came to be the voice actress for 05th Floor Alliance.
6My Friend's Little Sister Has It In for My Friend's Enemy
Nov 8, 202524 min
While at the mall with Mashiro and Iroha, Akiteru learns why Mashiro left her old school.
7The Girl Who Confessed to Me Is Cold to Me in Reality
Nov 15, 202524 min
Akiteru tries to give a proper reply to Mashiro's love confession, but she's brutally cold to him in person.
8Everyone I Know Is Being Weird With Me
Nov 22, 202524 min
Sumire asks Akiteru for help with a problem that could endanger her future with 05th Floor Alliance.
9My Fake Girlfriend Gets Tough When I Respond To Her Confession
Nov 29, 202524 min
Akiteru and Iroha head to Otoi's studio to record for the game, but Iroha has ideas of her own.
10My Friend's Little Sister Only Gets an Apology from Me
Dec 6, 202524 min
Akiteru must clear the air with Iroha to keep 05th Floor Alliance running smoothly.
11We're Perfect for Training the Drama Club
Dec 13, 202524 min
With 05th Floor Alliance's help, the drama club is ready for the big competition... but then disaster strikes.
12My Friend's Little Sister Really Does Have It In for Me
Dec 20, 202524 min
Can Akiteru save the drama club and secure 05th Floor Alliance's future?
Cast
Haruki Ishiya
Akiteru Oboshi (voice)
Sayumi Suzushiro
Iroha Kohinata (voice)
Tomori Kusunoki
Mashiro Tsukinomori (voice)
Soma Saito
Ozuma Kohinata (voice)
Kana Hanazawa
Sumire Kageishi (voice)
