Wu Lang, an ordinary college student who appears to be harmless to humans and animals, is actually a "poison master" selected by a mysterious system. In this seemingly peaceful campus, his biggest worry is how to pretend to be more innocent and harmless. The turning point of everything happened on the day he rejected the school beauty's confession. No one knows that this boy known as the "innocent little milk dog" is actually the "King of Hell" who makes the underground world fearful. When Li Ming, the hypocritical president of the school student union, began to target Wu Lang in retaliation for rejecting the school belle, he didn't know who he was provoking. Being framed, slandered, and isolated by the whole school? Wu Lang just smiled and began his gentle but deadly revenge. Everyone who wants to hurt him will find that he has inexplicably gotten into all kinds of strange things - or suddenly developed pimples on his face, or danced a striptease in public, or inexplicably thought he had turned into a cat. The most terrifying thing is that no one can find any evidence and can only watch Wu Lang continue to use that harmless face and say, "I really don't know anything." When the police, underground forces, and even the military were involved in this "drug-free controversy," Wu Lang still wore a mask and smiled: Just pretend to be innocent, I am the most experienced.
