The concept installation is located on the circular roof garden inside the T23 commercial block next to the Central Park in Chongqing. Based on the design concept of "Magic Cube in the sky", a circular LED light screen and mirror stage activity space are combined to build a participatory installation. On the one hand, the circular screen can project commercial advertisements, on the other hand, it can project eye-catching artistic expression at night, creating a "traffic eye" above the block.