My Friend's Little Sister Has It In for Me!: Story, Cast and Series Facts

Story and premise

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?!

Series details

• Title: My Friend's Little Sister Has It In for Me!
• Format: Animation
• Language: Japanese
• Genres: Anime
• Premiere date: 2025-10-04
• Status in TVmaze: To Be Determined
• Network listed by TVmaze: TV Asahi
• Network country: Japan
• Typical episode runtime: 30 minutes
• TVMaze ID: 87206
• IMDb ID: tt32742508
• TVDB ID: 404174

Seasons in the TVmaze catalogue

• Season 1: premiered 2025-10-04; final listed air date 2025-12-20.

Source and licence

Adapted from My Friend's Little Sister Has It In for Me! on TVmaze. The synopsis is reproduced as plain text; catalogue facts, cast and season records are selected and reformatted. This adapted text is available under CC BY-SA 4.0, following the TVmaze API licence. Network and web-channel credits identify the service listed in this source; they do not establish current streaming availability.