So... is Ken En Ken: Aoki Kagayaki finished or not?
NO, it is not finished.
Why?
MangaUpdates contains information about the anime adaptation and indicates that it is incomplete.
Watching Order (by release date)
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Synopsis
Two sisters, Yin and Ning, are survivors of a devastating attack by the Taibai Empire. They journey across the land after losing their home.
Their childhood friend, Zhao, is now enslaved by the same empire, using his inventive skills to survive.
Yin discovers a powerful sword granting her combat abilities and a mystical fox spirit companion, Yun.
Meanwhile, Zhao forms an alliance with a mysterious girl within the Taibai Empire, hinting at potential shifts in power.
As the sisters and Zhao become entangled in the Empire's power struggles, a resistance begins to form, hoping to challenge the Taibai's dominance.