Sign-In in the Underworld: From the Start, I Inherit the Judge's Position

The underworld has collapsed, the balance of yin and yang is in chaos, and evil spirits have invaded the human realm. Lin Fan, an ordinary young man from the city, unexpectedly inherits a mysterious notebook and becomes the last heir to the crumbling order of the Underworld Bureau.

With each daily sign-in, he can unlock an "underworld employee," from faint wandering spirits that can only pass through walls to vicious ghosts consumed by deep-seated obsessions. He commands ten thousand ghosts and rebuilds order, restoring the cycle of reincarnation step by step in a modern city where ghosts and human hearts are equally dangerous.

But why did the sign-in System choose him? What secrets lie hidden in the collapsing underworld? As ancient schemes intertwine with the hardships of the present, Lin Fan discovers that he must face not only the evil spirits wreaking havoc, but also the darkness and obsessions deep within the human heart.

This is the story of a man who grows amid despair and builds a new order upon the ruins. With ghosts as his blade and his heart as his scales, in an age where humans and ghosts are indistinguishable and good and evil blur together, he redefines what it means to be yin and yang.

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.