LAST EPISODE
S1 E12 · My Friend's Little Sister Really Does Have It In for Me
8.3/10December 20, 2025
24m

My Friend's Little Sister Has It In for Me!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?!
WritersTouko Machida, Ghost Mikawa
LAST EPISODE
December 20, 2025
24m

My Friend's Little Sister Has It In for Me
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Akiteru just wants to work toward his future, but his friend's little sister won't allow him any peace.

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

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Akiteru and Iroha recall how they first met.

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

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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
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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
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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
Dec 6, 2025
Akiteru must clear the air with Iroha to keep 05th Floor Alliance running smoothly.

We're Perfect for Training the Drama Club
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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
Dec 20, 2025
Can Akiteru save the drama club and secure 05th Floor Alliance's future?