Qin Xiao transmigrates to the Netherworld, becoming a laborer ghost in the Yinshan Mine, with no one to make offerings to him and his soul on the brink of death.
Just as he is about to vanish completely, he awakens the "Incense Faith Godhood" System and manages to send a single word, "Burn," to his descendants in the modern world.
His grandson in the world of the living, Qin Mingxuan, burns the first stack of joss paper, though not without doubts. In the Netherworld, Qin Xiao watches his incense points come in and weeps with joy. At last, he can stay alive!
From then on, the Netherworld gains a ghost cultivator with a very unusual style.
While others curry favor with their superiors, he uses incense to clear the way. "Captain, just a little something for you. Please accept it!"
When vengeful ghosts attack, others have their souls scattered, while Qin Xiao whips out a Gatling-gun paper effigy his grandson burned for him...
He emerges from Yinshan and rises all the way to become the Netherworld's great demon king.
When he occasionally manages to visit the world of the living, he discovers that the troubles his grandson runs into seem to be things only he can solve.
Qin Xiao sends the Yin soldiers marching, with a procession of ghosts roaming through the night.
"Who dares bully my grandson?"