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

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

23min

Animation

Comedy

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?!

Production Companies

BLADE

NK Animation

Asmik Ace

SB Creative

PIA Corporation

BS11

TV Asahi

TV Asahi Music

Square Enix

Episodes

Cast

Season 1

My Friend's Little Sister Has It In for Me

1. My Friend's Little Sister Has It In for Me

24min

4th Oct 2025

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

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

24min

11th Oct 2025

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

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

24min

18th Oct 2025

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

4. My Friend's Little Sister Might Be a Delinquent

24min

25th Oct 2025

Akiteru and Iroha recall how they first met.

My Friend's Little Sister Keeps Getting Close to Me

5. My Friend's Little Sister Keeps Getting Close to Me

24min

1st Nov 2025

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

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

24min

8th Nov 2025

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

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

24min

15th Nov 2025

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

8. Everyone I Know Is Being Weird With Me

24min

22nd Nov 2025

Sumire asks Akiteru for help with a problem that could endanger her future with 05th Floor Alliance.

My Fake Girlfriend Gets Tough When I Respond To Her Confession

9. My Fake Girlfriend Gets Tough When I Respond To Her Confession

24min

29th Nov 2025

Akiteru and Iroha head to Otoi's studio to record for the game, but Iroha has ideas of her own.

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

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

24min

6th Dec 2025

Akiteru must clear the air with Iroha to keep 05th Floor Alliance running smoothly.

We're Perfect for Training the Drama Club

11. We're Perfect for Training the Drama Club

24min

13th Dec 2025

With 05th Floor Alliance's help, the drama club is ready for the big competition... but then disaster strikes.

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

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

24min

20th Dec 2025

Can Akiteru save the drama club and secure 05th Floor Alliance's future?

First air date

4th Oct 2025

Last air date

20th Dec 2025

Status

Ended

Type

Scripted

Original language

ja

Networks