One is the most inconspicuous low-level angel in heaven, and the other is the archangel Raphael at the beginning of creation.
They are wrapped up in God's big hands and follow a path that has been secretly paved towards an unknown future.
A tiny mistake is like the fluttering wings of a butterfly on the other side of the ocean, causing a series of chain reactions. Silent truths are revealed and hell's conspiracy exposed.
The power of the archangel constantly flows towards the low-level angel with weak power. Walking on the road that Salier walked, what different decisions would she make?
In the end, all angels will reach their own ending.
Concept: Destiny is a straight line and you are the only one who survives among thousands of timelines.