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

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My Friend's Little Sister Has It In for Me

⭐ 6.1 Season 1 Japanese

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Overview

Storyline

A high school gamer, mocked by girls, shifts his focus from romance to his future, seeking jobs at his uncle's company for himself and his friends.

Cast & Media Details

Stars Sayumi Suzushiro, Tomori Kusunoki, Katsuyuki Konishi, Yume Miyamoto

Creator Ghost Mikawa

Genre Animation, Comedy, Romance

Release Date 03 Oct, 2025

Total Seasons 1 Seasons

Country Japan

Audio / Language Japanese

Production Blade, Nikkatsu Animation, SB Creative

IMDb Votes 697

Keywords & Themes

first year high school student high energy romantic comedy otaku culture male protagonist love triangle male friend relationship determined protagonist teen comedy older brother younger sister relationship

SEASON (1)

1. Tomodachi no Imouto ga Ore ni Dake Uzai ⭐ 6.5

03 Oct, 2025 · 128 votes

Akiteru just wants to work toward his future, but his friend's little sister won't allow him any peace.

Watch Episode 1

2. Hisabisa no Itoko ga Ore ni dake Tsumetai ⭐ 7.6

11 Oct, 2025 · 97 votes

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

Watch Episode 2

3. Only I Can Be a Pain to My Uncle's Daughter ⭐ 8

18 Oct, 2025 · 91 votes

Akiteru decides to throw a welcome party for Mashiro, but first he must convince her to attend.

Watch Episode 3

4. My Friend's Little Sister Might Be a Delinquent ⭐ 7.5

25 Oct, 2025 · 78 votes

Akiteru and Iroha recall how they first met.

Watch Episode 4

5. My Friend's Little Sister Keeps Getting Close to Me ⭐ 8

01 Nov, 2025 · 73 votes

A look back at how Iroha came to be the voice actress for 05th Floor Alliance.

Watch Episode 5

6. My Friend's Little Sister Has It In for My Friend's Enemy ⭐ 8.5

08 Nov, 2025 · 73 votes

While at the mall with Mashiro and Iroha, Akiteru learns why Mashiro left her old school.

Watch Episode 6

7. The Girl Who Confessed to Me Is Cold to Me in Reality ⭐ 8

15 Nov, 2025 · 60 votes

Akiteru tries to give a proper reply to Mashiro's love confession, but she's brutally cold to him in person.

Watch Episode 7

8. Everyone I Know Is Being Weird With Me ⭐ 7.6

22 Nov, 2025 · 59 votes

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

Watch Episode 8

9. My Fake Girlfriend Gets Tough When I Rrespond to Her Confession ⭐ 8.3

29 Nov, 2025 · 61 votes

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

Watch Episode 9

10. My Friend's Little Sister Only Gets an Apology from Me ⭐ 7.5

06 Dec, 2025 · 51 votes

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

Watch Episode 10

11. We're Perfect for Training the Drama Club ⭐ 7.7

13 Dec, 2025 · 48 votes

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

Watch Episode 11

12. My Friend's Little Sister Really Does Have It In for Me ⭐ 8

20 Dec, 2025 · 49 votes

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

Watch Episode 12

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