In this turbulent martial world, a dark force unleashes the Bloodfiend Art, stirring up a storm of chaos and leaving devastation in its wake.
To save the martial world from disaster, Xiao Yu resolutely sets out on a perilous quest to find five spirit pearls. They venture deep into the mysterious Azurewood Secret Realm, battle powerful monsters, and survive a deadly fight in a temple before finally obtaining the wood-element spirit pearl. Next, they journey to the mines in the far west, overcome one obstacle after another, gather three keys, and claim the metal-element spirit pearl. In the Ten-Thousand-Mud Marsh, they defeat the Earth Spirit Giant and obtain the earth-element spirit pearl.
After successfully destroying the Bloodfiend Art, peace does not return to the martial world. Instead, dark currents begin to stir. Strange shadows appear in Cold River City. Following the clues, Xiao Yu and the others uncover the Netherworld Sect's plot to concoct the evil Blood Spirit Pills, then bring the sect down.
But trouble brews again on the shores of the Eastern Sea, where a fishing village is ravaged by sea fog and monsters. The group ventures to Shadow Isle, shrouded in mist, and battles the Ghostly Blue Wolves, a mysterious black-robed man, and the Dark Skeleton King he summons. From the black-robed man, they learn of the Dark Moon Sect's ambition to seize an ancient divine artifact and rule the martial world.
Now they stand before a stone gate at the foot of a rune-covered mountain. Unknown challenges still lie ahead. Can Xiao Yu and the others thwart the Dark Moon Sect's scheme and protect peace in the martial world?