The highly anticipated web anime adaptation of Yuami’s Koala’s Diary (Koala E Nikki) manga is officially set to premiere on October 2, 2025, with Kadokawa revealing a new visual and the theme song artist. Punipuni Denki feat. Kan Sano will perform the theme song for the series.
Premiere Date and Streaming Platform Confirmed
Fans can mark their calendars for October 2, 2025, as the Koala’s Diary net anime makes its debut. The series will be available for streaming on its official YouTube channel. This announcement follows an earlier reveal in July 2025, which confirmed an October streaming debut and a teaser video.
New Visual Highlights Cozy Atmosphere
While the specific visual was not provided in detail, the announcement from Kadokawa confirms the release of a new visual. Previous art and a teaser trailer released in June 2025 offered a glimpse into the heartwarming world of the koala protagonist. The animation is being handled by Studio Mother, with Takao Kato directing and Chiharu Hara designing the characters.
Punipuni Denki feat. Kan Sano to Perform Theme Song
The musical landscape of Koala’s Diary will be shaped by Punipuni Denki, featuring Kan Sano, who has been announced as the artist performing the theme song. This collaboration is expected to complement the anime’s gentle and introspective tone.
Voice Cast and Story Synopsis
Aya Uchida is cast as the voice of the titular Koala-san. The story of Koala’s Diary revolves around a koala bear who diligently chronicles their daily experiences in a journal. The narrative emphasizes the idea that every day is precious, whether good or bad, happy or sad. This slice-of-life approach, adapted from Yuami’s manga, aims to offer a relaxing and emotionally grounded viewing experience.
Background of the Koala’s Diary Adaptation
The web anime adaptation of Yuami’s Koala’s Diary manga was initially announced on June 11, 2025. The original manga began serialization as a web manga on Twitter in June 2021 before being acquired by Kadokawa Corporation for print publication in March 2022. As of February 2025, four tankōbon volumes of the manga have been released. The anime adaptation, produced by Studio Mother, marks a new chapter for the popular series, bringing its quiet reflections to a broader animated audience.
