Are there gods in the heavens? If so, why do demons run rampant in the world?

Are there no gods in the heavens? If so, why is the heart filled with endless doubts?

During the Chenghua era of the Ming Dynasty, a group of Jinyi Guards known as “born of foxes and raised by ghosts” are ordered to seek the true god in a godless world, and to search for the path to immortality within their limited lifespans.