Here I have a crazy dream: Is it possible to make a city dance with a human figure in the music of rhapsodies? Is it possible that the establishment or collapse of a city is to be decided by the shaking and twisting of the waist of a dancing citizen? The interactive device has included all the landmarks, from the past to the present, around the People's Square in Shanghai, to be shaking along with the audience's moving. Heavy concrete bricks and steel boards dance and flutter, and when they are dismantled or reconstructed according to the moving figures in front of them, a new connection between people and cities is restored.