The official website for the web anime adaptation of Yuami’s Koala E Nikki (Koala’s Diary) manga recently unveiled its main promotional video, revealing the full main cast and additional staff members. The highly anticipated series is set to debut on October 2 at 8:00 p.m. JST on the anime’s official YouTube channel.
The newly released promotional video offers a glimpse into the heartwarming daily life of Koala and her friends, while also previewing the anime’s theme song, “Niji to” (With a Rainbow), performed by Punipuni Denki feat. Kan Sano.
Main Cast Bringing Koala’s World to Life
Veteran voice actress Aya Uchida will be taking on multiple roles in the Koala’s Diary net anime. She is confirmed to voice the titular Koala, as well as several other key characters in the series.
Aya Uchida’s Diverse Roles
- Koala: The main character who chronicles her daily life in a diary, finding value in every good or bad day.
- Karasu-san (Crow-san)
- Emu-san
- Harinezumi-san (Hedgehog-san)
- Other characters
Unveiling the Production Team at Studio Mother
The production of the Koala’s Diary web anime is being handled by Studio Mother. A talented team of staff members has been assembled to bring Yuami’s charming manga to animated life.
Key Staff Members
- Director: Takao Kato (known for As a Reincarnated Aristocrat, I’ll Use My Appraisal Skill, Rockman.EXE Beast, To Love-Ru) is at the helm of the project.
- Character Designer: Chiharu Hara, who also worked on As a Reincarnated Aristocrat, I’ll Use My Appraisal Skill and More Than a Married Couple, But Not Lovers, is responsible for adapting Yuami’s original designs for animation.
- Art Director: Chiaki Tsujimoto
- Color Design: Mitsuko Sekimoto
- Compositing Director of Photography: Kōji Yamakoshi
- Editing: Kaori Umewaki
- Sound Director: Takayuki Yamaguchi
- Sound Effects: Yui Andō
- Sound Production: HALF H·P STUDIO
- Music: Atsushi Umebori and Slavomir Stanislaw Kowalewski
- Music Production: Kadokawa
The Story of Koala’s Diary
The Koala’s Diary manga, created by Yuami, centers around a koala who diligently records her daily experiences. The core theme revolves around appreciating every day, whether it brings joy or sorrow, as a precious part of life. Yuami originally launched the manga on their X (formerly Twitter) account on June 11, 2021, and Kadokawa has since published four compiled book volumes. The latest volume was released on February 14, 2025. The web anime adaptation was first announced on June 11, 2025.
