Heavenward

A high fantasy with a neurodivergent main character.
When angels initiate a war, humans on Apkallu die.

Deprived of human worshipping, angels resort to burning human souls to sustain themselves, when the ancient Qal of an assassinated archangel wakes up on Earth inside a human, disturbing the precarious peace.
Holding the key to all three realms, the allegiance of this archangel will mean eternal dominance in a game on a global scale.