Jiang Si, a top-tier assassin and the dark web's 'King of Bad Reviews,' unexpectedly accepts a revenge contract after a little dog is kicked away in anger. His target, Lu Ling, turns out to be a blind biological heiress who has been cruelly framed. Faced with aphrodisiac incense and a scheme in which criminals prey on one another, he turns the tables. Using his pure Yang constitution, he dispels the fifteen-year-old cold poison in her body, allowing her to see again. Jiang Linfeng, an illegitimate son of the Jiang family, arrives with a marriage contract worth tens of billions and attempts to force Lu Ling into marriage. Jiang Si confronts him alone, catches bullets with his bare hands, turns hypnotic backlash against his enemies, and unleashes a swarm of deadly Gu worms. The blood feud dating back ten years to the Evil Island, where he was abandoned, ends today with the island master's trillion-dollar bounty. When a roguishly handsome assassin meets a devoted blind woman, his long blade henceforth serves only to protect her and their future.