So... is I★Chu: Halfway Through the Idol finished or not?
It is a bit ambiguous in this case.
Why?
The anime finished after the manga:
Anime finished: March 24, 2021
Manga finished: January 25, 2016
... But we could not confirm the source content in MangaUpdates.
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
The anime follows a group of students attending Étoile Vio School, a place dedicated to training aspiring idols called "I-Chu."
These young hopefuls will face various challenges and training exercises as they strive to achieve their dreams of becoming successful idols.
They will each grapple with the meaning of being an idol and what it truly means to shine in the competitive world of entertainment.
The story will explore their personal journeys, struggles, and growth as they navigate their path toward idol stardom.