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Synopsis

The manga is about Koala who writes about daily life, whether it's good or bad, happy or sad, Koala treats every day as a precious day. Koala believes that today is a good day, and tomorrow will be a good day too. (Source: Anime News Network)

Details

Koala's Diary is a 49-episode ONA produced by studio MOTHER, adapted from the manga, airing since Fall 2025.

Type: ONA
Aired: 2025-10-02
Season: Fall 2025
Episodes: 49
Duration: 2 min per ep
Source: Manga
Studio: studio MOTHER
Producers: KADOKAWA

Theme songs

3 endings from Koala's Diary, and who performed each

Song titles link to Amazon Music. These are paid links — we may earn a commission, at no extra cost to you.

Endings

ED1
- Kan Sano · performance, composition, arrangement
- Punipunidenki · performance, composition, lyrics
ED2
- Kan Sano · performance, composition, arrangement
- Punipunidenki · performance, composition, lyrics
ED3
- Kan Sano · performance, composition, arrangement
- Punipunidenki · performance, composition, lyrics