So... is Chio-chan no Tsuugakuro finished or not?
NO, it is not finished.
Why?
The anime finished after the manga:
Anime finished: September 21, 2018
Manga finished: September 05, 2018
... But MangaUpdates contains information about the anime adaptation and indicates that it is incomplete.
Watching Order (by release date)
Here you have all the anime relations we detected ordered by release date, so you can see the reason for this status in context and also use it as watching order.
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Synopsis
Chio-chan no Tsuugakuro is a comedic anime about Chio Miyamo, a high school student whose daily walk to school is anything but ordinary.
Due to her late-night gaming habits, Chio is constantly running late and improvises new, often ridiculous, routes to Samejima Private Academy.
Each day presents a fresh set of absurd challenges, from unexpected construction to eccentric individuals, that Chio tackles with the unexpected skills she's acquired from her gaming experience.
Alongside her friends Manana and Yuki, Chio's main goal is simple: avoid being late to school at all costs, no matter how outlandish the journey becomes.