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

7.3202523m1 seasonAnimationComedy
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My Friend's Little Sister Has It In for Me! is a 2025 animation and comedy series, running 23m. It has 1 season and 12 episodes listed on TMDB, and its status is “Ended”. Age rating: TV-14 in the United Kingdom.

In the United Kingdom it is listed on Crunchyroll and Crunchyroll Amazon Channel.

TV-14 age rating23m1 seasonAnimationComedy

Rated TV-14 in the United Kingdom — suitable for older children and teenagers; parental guidance recommended.

All key facts9
Format
TV series
First aired
2025-10-04
Seasons
1
Episodes
12
Episode length
23m
Genres
Animation, Comedy
Original language
Japanese
Status
Ended
TMDB rating
7.3 / 10 · 27 votes

Facts come from TMDB and are refreshed automatically. Availability is per country and changes weekly — the United Kingdom row is what you see by default.

Availability

Where to watch in the United Kingdom

SubscriptionIncluded with a service you pay for
CrunchyrollCrunchyroll Amazon Channel
BuyKeep the digital copy
Apple TV Store

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Synopsis

Series 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?!

Cast

5 names
Haruki IshiyaAkiteru Oboshi (voice)
Sayumi SuzushiroIroha Kohinata (voice)
Tomori KusunokiMashiro Tsukinomori (voice)
Soma SaitoOzuma Kohinata (voice)
Kana HanazawaSumire Kageishi (voice)

Seasons and episodes

12 episodes
01 · My Friend's Little Sister Has It In for Me2025-10-04 · 24 min Watch02 · The Cousin I Haven't Seen in Years Is Cold to Me2025-10-11 · 24 min Watch03 · Only I Can Be a Pain to My Uncle’s Daughter2025-10-18 · 24 min Watch04 · My Friend's Little Sister Might Be a Delinquent2025-10-25 · 24 min Watch05 · My Friend's Little Sister Keeps Getting Close to Me2025-11-01 · 24 min Watch06 · My Friend's Little Sister Has It In for My Friend's Enemy2025-11-08 · 24 min Watch07 · The Girl Who Confessed to Me Is Cold to Me in Reality2025-11-15 · 24 min Watch08 · Everyone I Know Is Being Weird With Me2025-11-22 · 24 min Watch09 · My Fake Girlfriend Gets Tough When I Respond To Her Confession2025-11-29 · 24 min Watch10 · My Friend's Little Sister Only Gets an Apology from Me2025-12-06 · 24 min Watch11 · We're Perfect for Training the Drama Club2025-12-13 · 24 min Watch12 · My Friend's Little Sister Really Does Have It In for Me2025-12-20 · 24 min Watch

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

Quick answers
Where can I watch My Friend's Little Sister Has It In for Me! in the United Kingdom?

In the United Kingdom, My Friend's Little Sister Has It In for Me! is listed on Crunchyroll, Crunchyroll Amazon Channel. Use the country selector above the facts to see another market — streaming rights differ by country.

Is My Friend's Little Sister Has It In for Me! suitable for children?

My Friend's Little Sister Has It In for Me! is rated TV-14 in the United Kingdom. That rating covers the themes and content levels set by the local classifier, so use it together with your own judgement for younger viewers.

Is My Friend's Little Sister Has It In for Me! on PelisPlus UK?

My Friend's Little Sister Has It In for Me! has a full discovery page on PelisPlus UK with its synopsis, cast, ratings, seasons and episode guide. PelisPlus UK does not host video files; playback opens the third-party player sources configured by the site operator.

What is My Friend's Little Sister Has It In for Me! 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,…

How many seasons of My Friend's Little Sister Has It In for Me! are there?

My Friend's Little Sister Has It In for Me! has 1 season and 12 episodes listed on TMDB. Use the season tabs to see every episode.

Can I watch the My Friend's Little Sister Has It In for Me! trailer?

Yes. Press Watch trailer to play Official Trailer [Subtitled] without leaving this page. The trailer is embedded from YouTube.

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