Name: My Friend's Little Sister Has It In for Me!
Released: 2025-10-05T00:00:00.000Z
Cast: Soma Saito, Haruki Ishiya, Tomori Kusunoki

TV Show · Anime · Romance

High schooler Akiteru Oboshi thinks youth is a waste—fun, friends, and love included. So when his best friend’s sister, Iroha, constantly teases him, he’s just annoyed. She’s clingy, always in his room…why does she only act this way around him?!

2025 · 23m

Starring Soma Saito, Haruki Ishiya, Tomori Kusunoki

Director Kazuomi Koga

EPISODE 1

My Friend's Little Sister Has It In for Me

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

23 min
EPISODE 2

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

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

23 min
EPISODE 3

Only I Can Be A Pain To My Uncle's Daughter

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

23 min
EPISODE 4

My Friend's Little Sister Might Be a Delinquent

Akiteru and Iroha recall how they first met.

23 min
EPISODE 5

My Friend's Little Sister Keeps Getting Close to Me

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

23 min
EPISODE 6

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

For high schooler Akiteru Oboshi, the whole youthful experience thing is a complete waste of time; when his best friend's sister, Iroha Kohinata, keeps teasing him, Akiteru naturally finds it annoying.

23 min