So... is Kingdom of Chaos: Born to Kill 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
Kingdom of Chaos: Born to Kill is set in Neverland, a world inhabited by humans, demons, and dieux, who have coexisted in relative harmony.
However, the tranquility is threatened by the ambitious Lord of Bjor, who harbors a desire to conquer and dominate the entire world.
The anime, inspired by the online game "Kingdom of Chaos (K.O.C.)", will likely explore the conflict arising from the Lord of Bjor's expansionist plans and the resistance he faces from those who wish to preserve the peace in Neverland.