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

TV series

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

7.3/ 10· 25202523 min1 season · 12 episodes
AnimationComedy

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?!

Seasons and episodes

1 season · 12 episodes

Ended
Season 1

Season 1

12 episodesOctober 4, 2025
Open season page
  1. S1 E1

    My Friend's Little Sister Has It In for Me

    Oct 4, 202524 min

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

  2. S1 E2

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

    Oct 11, 202524 min

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

  3. S1 E3

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

    Oct 18, 202524 min

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

  4. S1 E4

    My Friend's Little Sister Might Be a Delinquent

    Oct 25, 202524 min

    Akiteru and Iroha recall how they first met.

  5. S1 E5

    My Friend's Little Sister Keeps Getting Close to Me

    Nov 1, 202524 min

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

  6. S1 E6

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

    Nov 8, 202524 min

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

Starring

Frequently asked questions

Where can I watch My Friend's Little Sister Has It In for Me!?
My Friend's Little Sister Has It In for Me! is streaming on Crunchyroll. It can also be rented or bought on Amazon Video, Apple TV Store. Availability is refreshed weekly.
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. Status: Ended.
Will there be a new season of My Friend's Little Sister Has It In for Me!?
My Friend's Little Sister Has It In for Me! has ended; no new episodes are scheduled. The final episode aired on December 20, 2025.
Who stars in My Friend's Little Sister Has It In for Me!?
My Friend's Little Sister Has It In for Me! stars Haruki Ishiya, Sayumi Suzushiro, Tomori Kusunoki, Soma Saito, Kana Hanazawa.

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