So... is HenSemi (TV) finished or not?
It is a bit ambiguous in this case.
Why?
The anime finished before the manga:
Anime finished: July 01, 2011
Manga finished: June 22, 2015
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
HenSemi follows Nanako, an ordinary university student who finds herself unexpectedly enrolled in an Abnormal Physiology seminar.
The anime centers around her attempts to navigate this unusual academic environment and maintain her sanity.
As she interacts with her eccentric and "abnormal" classmates, Nanako faces the challenge of preventing their peculiar behaviors and perspectives from influencing her own personality.
The story explores her journey through this seminar and the potential impact her classmates have on her.