Series

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

2025 · 1 season · 12 episodes · Ended · HTB

Animation, Comedy

TMDB 7.3 · 26 votes

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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?!

Episodes

  • S01E01My Friend's Little Sister Has It In for Me2025-10-0424m

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

  • S01E02The Cousin I Haven't Seen in Years Is Cold to Me2025-10-1124m

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

  • S01E03Only I Can Be a Pain to My Uncle’s Daughter2025-10-1824m

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

  • S01E04My Friend's Little Sister Might Be a Delinquent2025-10-2524m

    Akiteru and Iroha recall how they first met.

  • S01E05My Friend's Little Sister Keeps Getting Close to Me2025-11-0124m

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

  • S01E06My Friend's Little Sister Has It In for My Friend's Enemy2025-11-0824m

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

  • S01E07The Girl Who Confessed to Me Is Cold to Me in Reality2025-11-1524m

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

  • S01E08Everyone I Know Is Being Weird With Me2025-11-2224m

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

  • S01E09My Fake Girlfriend Gets Tough When I Respond To Her Confession2025-11-2924m

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

  • S01E10My Friend's Little Sister Only Gets an Apology from Me2025-12-0624m

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

  • S01E11We're Perfect for Training the Drama Club2025-12-1324m

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

  • S01E12My Friend's Little Sister Really Does Have It In for Me2025-12-2024m

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

Cast