Naruto: Shinobi Payday - Chapter 43: Zeldris... Wanted by the Five Great Villages

The head of the London Association of Mages, the most powerful Saint Archmage in the world, Audrey Davis, accidentally transmigrated to another world due to a magic accident. She was an 18-year-old human girl.

Reborn as Red Army Misha!

- Description from novelbuddy

This is the tale of an earthling, who transmigrated as a dying third-rate god but somehow rose through the ranks, gaining followers and eventually causing the Fourth Great Apocalypse.

A sudden and unprecedented event occurred and took place on Earth.A fissure instantly appeared in the clear blue sky, revealing a void devoid of any light beyond, instantly covering the whole planet, leaving no Life, no Hell, and no Paradise behind...Hence the start of a new chaos and a great beginning of life devoid of any hope began.In this apocalypse and lawless world without any limits set upon its beings, a silent dark wisp took form.A wisp that was bound to become the Horror of All was born...“Wait… I’ve become a Ghost?!”