Aniplex has announced a TV anime adaptation of Akira Ozaki’s Uchi no Otōto-domo ga Sumimasen (Sorry About My Younger Brothers) manga series is in the works for a 2026 premiere. The anime’s main visual, promotional video, and cast and staff members were also revealed.
In addition, Ozaki released a commemorative illustration:
The anime’s main cast includes:
- Naomi Ōzora as Ito Narita
- Toshiki Masuda as Gen Narita
Hitoshi Nanba directs the Uchi no Otōto-domo ga Sumimasen anime series at Lay-duce. Megumi Shimizu handles the series composition, Shiori Hiraiwa and Yōko Fukushima are the character designers, and Gin is the music composer.
Additional staff members include:
- Art Design: Chie Okubo
- Prop Design: Takashi Akaishizawa
- Color Design: Tomoko Yamazaki
- Director of Photography: Naoki Ishikawa
- Editing: Gō Sadamatsu
- Sound Director: Satoshi Motoyama
- Sound Production: INSPION Edge
Ozaki launched the manga on Shueisha’s Bessatsu Margaret magazine in January 2020. Shueisha has released 14th compiled book volumes as of July 25, 2025.
Lastly, here’s an overview of the manga series, via Manga Dex:
Ito is a second-year high school student and an only child who has to move to a different city; her mother remarried and begins her new life as an older sister of 4 siblings!
The start of a family-love-comedy with four step-brothers ♥
