In the early years of the Republic of China, heavy snow blanketed northern Shandong. The young Wang Wu huddled in a corner of a mountain god's temple, clutching his family's ancestral butcher's knife. The ravages of war had left him a rootless drifter in a world gone mad.
A fateful encounter brought him to a Taoist temple on Beiming Mountain. There, he found Zhang the Taoist, who was like a father and a master to him, his stern yet caring Uncle-Master Wang, and his fellow disciple Liu Lili, whose eyes were as clear as a spring. He thought he had found a paradise amid the chaos, where he could practice calligraphy and breathing techniques, and watch plum blossoms bloom and fade in the courtyard.
But the Red Lotus Sect's dark claws tore it all apart. Amid the flames reaching for the sky, his master burned through his true essence, and his junior sister died. Bent on revenge, he resolutely took a path of no return, offering the hot blood of his heart to the "Nine Nether Ghost Lotus" from the underworld and transforming into a ghost infant, reborn into the world.
Ten years later, his fiendish blade was drawn! He was no longer that naive boy, but "Fiendblade Wang Wu," wielding the power of a ghost king and striking fear into the hearts of evil cults. Fortunately, his blade was not raised for killing alone. In an ancient desert temple, the eminent monk Mingchen enlightened him, planting a seed of compassion in his heart. But when he infiltrated a den of danger alone, he discovered that his beloved, whom he thought dead, had become the vessel through which the evil cult would summon the Ghost King...
On one side lay a warm, carefree life of comfort. On the other, perilous crises where death lurked at every turn. When the Blood Lotus blooms again and a hundred thousand souls are about to be sacrificed, where will the fiendish blade in his hand point?
This is the awakening of a fiendish blade, and the redemption of a human heart. In a Republic-era world overrun by demons and monsters, where human hearts are as sinister as ghosts, watch a young man wield his blade to slay evil, seek the truth within himself, and write a blazing legend of his own.