About
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
as Akiteru Oboshi (voice)
Sayumi Suzushiro
as Iroha Kohinata (voice)
Tomori Kusunoki
as Mashiro Tsukinomori (voice)
Soma Saito
as Ozuma Kohinata (voice)
Kana Hanazawa
as Sumire Kageishi (voice)
Seasons
Episodes
Season 1
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.
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?
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.
My Friend's Little Sister Might Be a Delinquent
Akiteru and Iroha recall how they first met.
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.
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.
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.
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.
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