My Friend's Little Sister Has It In for Me!

My Friend's Little Sister Has It In for Me! (2025)

HTB
Oct 4, 2025 JP 23 min per episode Ended
7.3 ★ ★ ★ ★ ★
23 votes
Animation Comedy

Where can I watch "My Friend's Little Sister Has It In for Me!" online?
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Trailer

Seasons & Episodes

Searching for watch My Friend's Little Sister Has It In for Me! season 1 online? Use the episode list below.

Season

1

Episodes

1 - 1
Episode 1 of My Friend's Little Sister Has It In for Me!
My Friend's Little Sister Has It In for Me
Oct 4, 2025
★ 8.0
1 - 2
Episode 2 of My Friend's Little Sister Has It In for Me!
The Cousin I Haven't Seen in Years Is Cold to Me
Oct 11, 2025
★ 8.3
1 - 3
Episode 3 of My Friend's Little Sister Has It In for Me!
Only I Can Be a Pain to My Uncle’s Daughter
Oct 18, 2025
★ 8.3
1 - 4
Episode 4 of My Friend's Little Sister Has It In for Me!
My Friend's Little Sister Might Be a Delinquent
Oct 25, 2025
★ 8.7
1 - 5
Episode 5 of My Friend's Little Sister Has It In for Me!
My Friend's Little Sister Keeps Getting Close to Me
Nov 1, 2025
★ 8.0
1 - 6
Episode 6 of My Friend's Little Sister Has It In for Me!
My Friend's Little Sister Has It In for My Friend's Enemy
Nov 8, 2025
★ 9.0
1 - 7
Episode 7 of My Friend's Little Sister Has It In for Me!
The Girl Who Confessed to Me Is Cold to Me in Reality
Nov 15, 2025
★ 8.7
1 - 8
Episode 8 of My Friend's Little Sister Has It In for Me!
Everyone I Know Is Being Weird With Me
Nov 22, 2025
★ 8.7
1 - 9
Episode 9 of My Friend's Little Sister Has It In for Me!
My Fake Girlfriend Gets Tough When I Respond To Her Confession
Nov 29, 2025
★ 8.7
1 - 10
Episode 10 of My Friend's Little Sister Has It In for Me!
My Friend's Little Sister Only Gets an Apology from Me
Dec 6, 2025
★ 8.7
1 - 11
Episode 11 of My Friend's Little Sister Has It In for Me!
We're Perfect for Training the Drama Club
Dec 13, 2025
★ 8.7
1 - 12
Episode 12 of My Friend's Little Sister Has It In for Me!
My Friend's Little Sister Really Does Have It In for Me
Dec 20, 2025
★ 8.7

Watch My Friend's Little Sister Has It In for Me! (2025) online, explore episodes, cast, trailers, ratings, and series information.

Synopsis

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?!

Keywords

harem, romance, slice of life, school, anime, based on light novel.

Stills

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Similar series

Alya Sometimes Hides Her Feelings in Russian, The Angel Next Door Spoils Me Rotten, The Dangers in My Heart, Shikimori's Not Just a Cutie, School Rumble, Himouto! Umaru-chan, Maison Ikkoku, Pseudo Harem, Hana-Kimi, Seiren.

Main cast

Haruki Ishiya
Haruki Ishiya
as Akiteru Oboshi (voice)
Sayumi Suzushiro
Sayumi Suzushiro
as Iroha Kohinata (voice)
Tomori Kusunoki
Tomori Kusunoki
as Mashiro Tsukinomori (voice)
Soma Saito
Soma Saito
as Ozuma Kohinata (voice)
Kana Hanazawa
Kana Hanazawa
as Sumire Kageishi (voice)

Official trailer