Working odd jobs just to put food on the table, with no one to rely on, Lin Sui scrapes by in the big city as an insignificant face lost in the crowd.
When the Underworld's barrier collapses, evil spirits and monsters escape and wreak havoc in the mortal world. By a twist of fate, Lin Sui is standing right beside the breach, and the Underworld recruits her on the spot, signing her up to ferry souls and capture ghosts in the mortal world for a generous fee for every job she completes.
Her contract comes with an exclusive partner, a little black snake. All she wants is to earn enough to leave her life of hardship behind.
She handles one supernatural case after another, subdues wandering spirits, and deals with all kinds of monsters and evil ghosts. Even criminal investigators and the police keep coming to her for help.
As the truth behind a series of sinister cases comes to light, Lin Sui realizes that the little black snake she carries around in her bag and casually feeds every day has a background powerful enough to shake the Three Realms.
The little snake sheds its mortal form and takes charge of the Underworld.
From a destitute temp worker who can barely afford three meals a day to a ghost-hunting powerhouse feared by both the living and the dead.
One human and one snake join forces to roam the mortal realm, destroy evil, and uphold the balance between yin and yang.
