NO, it is not finished.
We found unfinished core content:
Tenshi kinryouku: tokyo chronos (Sequel)
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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Tenshi Kinryouku centers around Setsuna Mudo, a high schooler with a secret crush on his sister and a tendency to attract unwanted attention.
His ordinary life is shattered when he discovers he's caught in the middle of a celestial conflict.
Angels and demons alike claim Setsuna is a key figure from their ancient war, with opposing sides believing him to be either their savior or their destroyer.
The anime explores Setsuna's struggle to understand his newfound identity and the immense responsibility thrust upon him as the forces of Heaven and Hell prepare to clash once again.
He must figure out who he truly is and what role he will play in the looming war, all while dealing with the confusing emotions of being a teenager.