Shen Yan is an F-rank good-for-nothing who gets by on sheer shamelessness and a mouth full of dirty jokes. He seems all smiles and no ambition, but secretly possesses the core talent of an ancient guardian: the Eye of Deduction.
When Erosion Wraiths invade Jiangcheng, the senior officials of the Exorcism Bureau collude with evil spirits, and the truth behind his parents’ “sacrifice” is gradually exposed, Shen Yan finally realizes that this game was set in motion back in the ancient civilization.
Evil spirits come in eight ranks, from Shadow Wraiths to Void Nether, each with its own weakness. The genetic lock has five stages, from sensing particles of dust to multidimensional deduction, each step breaking through another impasse.
Su Qingyue, a cold and proud ice-type genius, is his best partner for deducing weaknesses. The greedy, slippery information broker known as Fatty is the key piece in unraveling the conspiracies.
Three storylines converge: one man deduces, two people break through the dead ends.
From Jiangcheng’s eerie shadows to the decisive battle for the world, from Earth to the universe, every evolution of the evil spirits brings a shocking twist: moles, traitors, ancient experiments, and the ultimate evil spirit, Void Nether...
But Shen Yan’s greatest enemy isn’t the evil spirits. It’s his own negative emotions.
Only by accepting them can he master the Eye of Deduction. Only by protecting humanity can he achieve redemption.
“I’m just an F-rank good-for-nothing. I’m only lucky enough to be a little smarter than you.”
Amid his joking and laughter, he uses the genetic lock to sweep aside every uncanny threat.