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?!

Directed by —, My Friend's Little Sister Has It In for Me! leans on a strong ensemble — Haruki Ishiya, Sayumi Suzushiro, Tomori Kusunoki — to carry a story that balances spectacle with character.

The series landed with audiences for its craft and performances, and remains one of the most talked-about animation titles of 2025.