Playback is currently unavailable for S1 E1 · My Friend's Little Sister Has It In for Me. Episode details remain available below.
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?!
- Cast:
- Haruki Ishiya, Sayumi Suzushiro, Tomori Kusunoki, Soma Saito
- Language:
- Japanese
- Country:
- Japan
- Network:
- HTB, tv asahi, Nagoya TV, KBC, ABC TV, NCC, OAB, ABA, Niigata Television Network 21, khb, KFB, HOME, KSB, Kagoshima Broadcasting, Iwate Asahi TV, Akita Asahi Broadcasting, Yamagata Television System, Shizuoka Asahi TV, Asahi Broadcasting Nagano, Hokuriku Asahi Broadcasting, Ehime Asahi TV, Yamaguchi Asahi Broadcasting, Kumamoto Asahi Broadcasting, Ryu-Q Asahi Broadcasting
Episode guide
Seasons
Season 1
Episodes
E01
Episode 1
★ 8.0My Friend's Little Sister Has It In for Me
2025-10-04 · 24mAkiteru just wants to work toward his future, but his friend's little sister won't allow him any peace.
Current episode
E02
Episode 2
★ 8.2The Cousin I Haven't Seen in Years Is Cold to Me
2025-10-11 · 24mNow that Mashiro has moved to his school, can Akiteru manage to make her open up to him?
Watch progress · Not tracked
E03
Episode 3
★ 8.0Only I Can Be a Pain to My Uncle’s Daughter
2025-10-18 · 24mAkiteru decides to throw a welcome party for Mashiro, but first he must convince her to attend.
Watch progress · Not tracked
E04
Episode 4
★ 8.2My Friend's Little Sister Might Be a Delinquent
2025-10-25 · 24mAkiteru and Iroha recall how they first met.
Watch progress · Not tracked
E05
Episode 5
★ 7.8My Friend's Little Sister Keeps Getting Close to Me
2025-11-01 · 24mA look back at how Iroha came to be the voice actress for 05th Floor Alliance.
Watch progress · Not tracked
E06
Episode 6
★ 8.5My Friend's Little Sister Has It In for My Friend's Enemy
2025-11-08 · 24mWhile at the mall with Mashiro and Iroha, Akiteru learns why Mashiro left her old school.
Watch progress · Not tracked
E07
Episode 7
★ 8.2The Girl Who Confessed to Me Is Cold to Me in Reality
2025-11-15 · 24mAkiteru tries to give a proper reply to Mashiro's love confession, but she's brutally cold to him in person.
Watch progress · Not tracked
E08
Episode 8
★ 8.2Everyone I Know Is Being Weird With Me
2025-11-22 · 24mSumire asks Akiteru for help with a problem that could endanger her future with 05th Floor Alliance.
Watch progress · Not tracked
E09
Episode 9
★ 8.2My Fake Girlfriend Gets Tough When I Respond To Her Confession
2025-11-29 · 24mAkiteru and Iroha head to Otoi's studio to record for the game, but Iroha has ideas of her own.
Watch progress · Not tracked
E10
Episode 10
★ 8.2My Friend's Little Sister Only Gets an Apology from Me
2025-12-06 · 24mAkiteru must clear the air with Iroha to keep 05th Floor Alliance running smoothly.
Watch progress · Not tracked
E11
Episode 11
★ 8.2We're Perfect for Training the Drama Club
2025-12-13 · 24mWith 05th Floor Alliance's help, the drama club is ready for the big competition... but then disaster strikes.
Watch progress · Not tracked
E12
Episode 12
★ 8.2My Friend's Little Sister Really Does Have It In for Me
2025-12-20 · 24mCan Akiteru save the drama club and secure 05th Floor Alliance's future?
Watch progress · Not trackedCast
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)
