The cozy and emotional world of Koala’s Diary is coming to life as an anime! Starting October 2, 2025, fans can stream the series every Thursday on its official YouTube channel. With a brand-new key visual introducing adorable new characters and a heartfelt theme song by Punipunidenki, the show promises to deliver gentle humor, warmth, and a touch of melancholy each week.
A new anime adaptation of Koala’s Diary
KADOKAWA has officially announced that the beloved manga Koala’s Diary (コアラ絵日記), created by Yuami, will receive its anime adaptation this fall. Animated by studio MOTHER and directed by Takao Kato, the series will bring the heartwarming and sometimes bittersweet diary of Koala-san to life. Voice actress Aya Uchida will play the gentle main character, adding her signature warmth to the role.
First key visual introduces new friends
The first key visual, illustrated by character designer Chiaki Hara, sets the tone for the anime with an autumn leaves theme. Alongside Koala-san, viewers are introduced to several new characters: the cuddly stuffed Kuma-chan, loyal friends Karasu-san and Emu-san, and the cheerful Hedgehog-san. The visual depicts them enjoying a picnic under colorful fall foliage, capturing the series’ comforting atmosphere.
Streaming begins October 2 on YouTube
Fans won’t have to wait long. The series premieres on October 2, 2025, with new episodes streaming every Thursday at 8:00 PM JST on the official Koala’s Diary YouTube channel. By making the anime available for free, the creators aim to ensure fans around the world can enjoy the show without barriers.
Punipunidenki performs the heartfelt theme song
The opening theme, titled “Niji to”, is written and performed by Punipunidenki with arrangement by Kan Sano. Known for blending Jazz, City Pop, and electronic influences, Punipunidenki crafted the song specifically for this anime. In an artist comment, she shared how the manga’s emotional storytelling inspired the lyrics and soft synth melodies. The single will be released digitally on October 3, 2025.
Why Koala’s Diary stands out
At its core, Koala’s Diary is more than a slice-of-life tale. It’s a heartfelt journey through the simple joys and quiet struggles of everyday life, often infused with a touch of bittersweet emotion. The anime adaptation promises to stay true to Yuami’s original vision, offering both relaxing moments and deeply relatable themes that resonate across cultures. For longtime fans and newcomers alike, this series is shaping up to be a weekly dose of warmth and reflection.
Stay connected and don’t miss the premiere
With its YouTube-first distribution, Koala’s Diary invites viewers from around the world to join Koala-san and friends on October 2. Fans can follow updates via the official website and X account, ensuring they don’t miss new episodes, music releases, and character reveals.
🌿 Subscribe now to the official Koala’s Diary YouTube channel and be the first to stream the premiere on October 2, 2025! For more updates, visit the official site and follow the anime on X.
©ゆあみ・KADOKAWA／コアラ絵日記
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