So... is Regalia: The Three Sacred Stars finished or not?
YES, it is finished.
Why?
This is an original anime and all detected relations are finished. Check the release order section for a complete list of relations.
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:
Synopsis
Twelve years after a devastating event involving giant robots that destroyed the kingdom of Rimgarde, peace seems to reign in the nation of Enastoria under the leadership of young Empress Yuinshiel.
However, this peace is shattered by the arrival of survivors from Rimgarde, who are seeking Yuinshiel's adopted sister, Rena.
Rena's true identity as a Regalia—a being capable of transforming into a giant robot—is revealed, linking her to the past destruction.
Yuinshiel finds herself caught in a conflict, determined to protect Rena while simultaneously safeguarding Enastoria from those who seek to exploit her sister's power.
The sisters must navigate a dangerous path where their bond is tested as they face threats from both within and outside their nation.