My Friend's Little Sister Has It In for Me!
S1 · E1IMDB:
7.6
Released
10/4/2025
Duration
0h 24m
Genre
Animation, Comedy
Country
Japan
Cast
Haruki Ishiya, Sayumi Suzushiro, Tomori Kusunoki
Overview
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?!
My Friend's Little Sister Has It In for Me!
Season 1 · Episode 1IMDB:
7.6Released
10/4/2025
Genre
Animation, Comedy
Cast
Haruki Ishiya, Sayumi Suzushiro, Tomori Kusunoki
Duration
0h 24m
Country
Japan
Overview
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?!
Episodes
EP 1AvailableMy Friend's Little Sister Has It In for Me
Akiteru just wants to work toward his future, but his friend's little sister won't allow him any peace.
My Friend's Little Sister Has It In for Me
Akiteru just wants to work toward his future, but his friend's little sister won't allow him any peace.
EP 2AvailableThe Cousin I Haven't Seen in Years Is Cold to Me
Now that Mashiro has moved to his school, can Akiteru manage to make her open up to him?
The Cousin I Haven't Seen in Years Is Cold to Me
Now that Mashiro has moved to his school, can Akiteru manage to make her open up to him?
EP 3AvailableOnly I Can Be a Pain to My Uncle’s Daughter
Akiteru decides to throw a welcome party for Mashiro, but first he must convince her to attend.
Only I Can Be a Pain to My Uncle’s Daughter
Akiteru decides to throw a welcome party for Mashiro, but first he must convince her to attend.
EP 4AvailableMy Friend's Little Sister Might Be a Delinquent
Akiteru and Iroha recall how they first met.
My Friend's Little Sister Might Be a Delinquent
Akiteru and Iroha recall how they first met.
EP 5AvailableMy Friend's Little Sister Keeps Getting Close to Me
A look back at how Iroha came to be the voice actress for 05th Floor Alliance.
My Friend's Little Sister Keeps Getting Close to Me
A look back at how Iroha came to be the voice actress for 05th Floor Alliance.
EP 6AvailableMy Friend's Little Sister Has It In for My Friend's Enemy
While at the mall with Mashiro and Iroha, Akiteru learns why Mashiro left her old school.
My Friend's Little Sister Has It In for My Friend's Enemy
While at the mall with Mashiro and Iroha, Akiteru learns why Mashiro left her old school.
EP 7AvailableThe Girl Who Confessed to Me Is Cold to Me in Reality
Akiteru tries to give a proper reply to Mashiro's love confession, but she's brutally cold to him in person.
The Girl Who Confessed to Me Is Cold to Me in Reality
Akiteru tries to give a proper reply to Mashiro's love confession, but she's brutally cold to him in person.
EP 8AvailableEveryone I Know Is Being Weird With Me
Sumire asks Akiteru for help with a problem that could endanger her future with 05th Floor Alliance.
Everyone I Know Is Being Weird With Me
Sumire asks Akiteru for help with a problem that could endanger her future with 05th Floor Alliance.
EP 9AvailableMy Fake Girlfriend Gets Tough When I Respond To Her Confession
Akiteru and Iroha head to Otoi's studio to record for the game, but Iroha has ideas of her own.
My Fake Girlfriend Gets Tough When I Respond To Her Confession
Akiteru and Iroha head to Otoi's studio to record for the game, but Iroha has ideas of her own.
EP 10AvailableMy Friend's Little Sister Only Gets an Apology from Me
Akiteru must clear the air with Iroha to keep 05th Floor Alliance running smoothly.
My Friend's Little Sister Only Gets an Apology from Me
Akiteru must clear the air with Iroha to keep 05th Floor Alliance running smoothly.
EP 11AvailableWe're Perfect for Training the Drama Club
With 05th Floor Alliance's help, the drama club is ready for the big competition... but then disaster strikes.
We're Perfect for Training the Drama Club
With 05th Floor Alliance's help, the drama club is ready for the big competition... but then disaster strikes.
EP 12AvailableMy Friend's Little Sister Really Does Have It In for Me
Can Akiteru save the drama club and secure 05th Floor Alliance's future?
My Friend's Little Sister Really Does Have It In for Me
Can Akiteru save the drama club and secure 05th Floor Alliance's future?
Cast
Akiteru Oboshi (voice)
Haruki Ishiya
Iroha Kohinata (voice)
Sayumi Suzushiro
Mashiro Tsukinomori (voice)
Tomori Kusunoki
Ozuma Kohinata (voice)
Soma Saito
Sumire Kageishi (voice)
