This study discusses media technology that enables the continuous creation of performers' physical improvisation as inspired by the reflection of imagery evoked from the audience. To realize this, the authors have focused on “shadow media,” which promote the continuous creation of imagery through “bodily awareness.” The authors have developed a system that can project shadows of the performers in various ways, which are then transformed into various shapes and colors. The shadows are connected to the performers' feet and projected on a “passable” slit screen set up between the stage and the audience. As a result, the interactive and mutual creation of imagery by performers and audience can form an “empathetic” stage. To demonstrate its validity, the authors applied the system to a dance performance at Festival della Scienza in Genoa, Italy.