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

202523m / epAnimation · Comedy

First aired

October 4, 2025

7.3

TMDB Score

73% match · 27 votes

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S01 · E02

The Cousin I Haven't Seen in Years Is Cold to Me

Season 1 · Oct 11, 2025 · 24m

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E01▶

My Friend's Little Sister Has It In for Me

Oct 4, 2025 · 24m

E02Playing

The Cousin I Haven't Seen in Years Is Cold to Me

Oct 11, 2025 · 24m

E03▶

Only I Can Be a Pain to My Uncle’s Daughter

Oct 18, 2025 · 24m

E04▶

My Friend's Little Sister Might Be a Delinquent

Oct 25, 2025 · 24m

E05▶

My Friend's Little Sister Keeps Getting Close to Me

Nov 1, 2025 · 24m

E06▶

My Friend's Little Sister Has It In for My Friend's Enemy

Nov 8, 2025 · 24m

E07▶

The Girl Who Confessed to Me Is Cold to Me in Reality

Nov 15, 2025 · 24m

E08▶

Everyone I Know Is Being Weird With Me

Nov 22, 2025 · 24m

E09▶

My Fake Girlfriend Gets Tough When I Respond To Her Confession

Nov 29, 2025 · 24m

E10▶

My Friend's Little Sister Only Gets an Apology from Me

Dec 6, 2025 · 24m

E11▶

We're Perfect for Training the Drama Club

Dec 13, 2025 · 24m

E12▶

My Friend's Little Sister Really Does Have It In for Me

Dec 20, 2025 · 24m

Now that Mashiro has moved to his school, can Akiteru manage to make her open up to him?

About the Series

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

AnimationComedy

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?!

First aired: October 4, 2025
Last aired: December 20, 2025
Seasons: 1 season · 12 episodes
Status: Ended
Original language: Japanese
Networks: HTB, tv asahi, Nagoya TV