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Based on the tale of the Journey to the West, the Demon-Slaying Chronicles are a retelling of the story, reimagining them as dedicated demon slayers instead of pilgrims for sacred texts. The author interprets the story as the four main protagonists fighting for justice freely, not fearing power and status, and neither doing so for the "greater good". From the White Bone Spirit, Sea Spirit, Nine-Headed Beast, Azure Lion, White Elephant, Great Peng, to the battle to the death with the Hundred-Eyed Demon Lord, all of it was done for the sake of justice, and not as trials and tribulations in the way of acquiring sacred texts. A clear distinction between being pilgrims and demon-slaying is made, where the former is for an intangible "greater good", while the latter is easier to grasp. Between the both, the four choose the latter, and to quote what Jiang Liu'er says to the Buddha: "I am but a simple monk, and our paths simply do not coincide."
Assobot Goku is the strongest and worst assobot there is, and he and his gang take what they want without remorse. But when he sets his sights on Miroku Village, and meets up with a mysterious young man named Sanzou playing a strange harmonica, he gets more than he bargained for. How does Sanzou know about Goku, and how are they both connected with a prophecy foretelling the destruction of the world?
Oogami is a detective by day and exorcist by night, solving cases and hunting spirits together with his ghostly assistant Kazari. One day, a mysterious package with horrifying contents arrives in Oogami's mail, the only clue to its sender being the name of a remote village: Shirasunamura.
Three years ago, a sickness known as Daemonblight befell the land. The sickness turns people into Daemons, and the world has fallen into an age of chaos. Even then, in a remote region of the Kingdom, the protagonist Velvet lived with her family in relative comfort. A night came when a red moon rose, and she was betrayed by Artorius, who was once her savior. She lost her family, while a mysterious power that consumed demons possessed her left arm. A measure of order returned to the world after Artorius founded the Abbey and the Exorcists. Artorius is hailed as the world's savior, but Velvet harbored only anger for him.