I combine the site-specific works with the essence of the spaces. As humans pass through and the images' frame juxtaposes with the boundary of the space,viewers experience an illusion of the non-physical space.When everything takes place in somewhere invisible to our eyes or even exists in virtual reality,only by implying the passage of the surface and crossing the contours between the virtual and the real can viewers focus on the empty space as well as the extended possibility of the space.