The fake daughter that the Gu family has raised for eighteen years turned out to be the wrong one! The real daughter Mo Nian has returned, but she is a loser who cannot learn all subjects. The rich and powerful are waiting to see a joke, but she relies on fortune telling and feng shui to become a top idol, a criminal investigation expert, and a guest of the wealthy. Her six brothers are all relying on her to chase their wives to the crematorium. The richest man, Mr. Qiao, doted on him and declared: "My little Mo Nian's mouth is a bit poisonous, please bear with it." Everyone looked at the opened mouth: Is it a bit poisonous?
