So... is Hiiro no Kakera finished or not?
It is a bit ambiguous in this case.
Why?
The anime finished after the manga:
Anime finished: December 23, 2012
Manga finished: January 01, 2008
... 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.
The mangas and the non-core contents are excluded by default, but you can enable them by clicking the buttons below:
Hiiro no Kakera
Hiiro no Kakera: The Tamayori Princess Saga
Anime - Base
Release date: April 01, 2012
Hiiro no Kakera 2nd Season
Hiiro no Kakera: The Tamayori Princess Saga Season 2
Anime - Sequel
Release date: September 30, 2012
Synopsis
Tamaki Kasuga, a seemingly ordinary high school girl, is thrust into a world of the supernatural when she moves to her grandmother's village. Suddenly, she's not so ordinary anymore.
She learns she's descended from the Tamayori Princess, a bloodline tasked with sealing away powerful gods and ghosts.
This revelation comes after a dangerous encounter with strange beings, forcing her to confront a reality she never knew existed. Adding to the confusion, she gains five mysterious guardians.
Tamaki must now embrace her destiny and protect humanity from the forces she was meant to keep at bay. The journey ahead promises to be challenging and full of hidden dangers.