The great calamity of the Primordial Age has only just subsided, and the world has become a wasteland ravaged by filthy, baleful energy. The frail human race is kept penned by all the other races as blood food to cure poison.
Chen Xu, a modern office worker, transmigrates here and inhabits a dying boy.
To protect the companions who once fed him a mouthful of dry rations from the slaughterhouse blade, the deathly afraid Chen Xu is forced to activate a mutated heart: the Mortal Heart Furnace.
Each time he devours something, he must endure the agony of his soul shattering, but in return he can refine the only pure essence in all of creation.
With the strength bought through pain, Chen Xu leads a group out of a death mine. At the Forgotten River black market, he uses pure essence to win over the lovesick demon woman Yan Yuemian and the mysterious rich woman Pei Jiangxing. He then builds Beacon City among the ruins to shelter his fellow humans. But his rise has violated the taboos of this world. When the demon and witch armies join forces to slaughter the city, terrified by a prophecy, and the old man who secretly passed on his power reveals the Saint’s fangs, intending to refine Chen Xu into a self-destructing magical weapon, Chen Xu forces the demon and witch fiends together and crushes them on a battlefield from which there is no return, forging a force of humanity that defies gods and Buddhas.
Unwilling to let its authority fall, Heaven’s Dao finally unleashes endless thunder punishments, seeking to erase Chen Xu and seize his perfect mortal body.
In the ultimate clash at the abyss of Heaven’s Dao, Chen Xu fights to the death as the logic of his modern memories collapses layer by layer.
At that moment, he finally understands the lament of the mortal heart: there was never any transmigrator. What he bears is an armor of will, forged from the resolve of ten billion humans in a doomed future timeline, before their total extinction.
Bearing a whole race’s deepest longing for equality, Chen Xu uses his own flesh and blood to swallow the lofty Heaven’s Dao into the Mortal Heart.
