This project focuses on the balcony as a transitional space between private and public life. The installation uses two window structures with screens that show simplified body outlines captured from viewers in real time. When a person stands in front of a screen, their movement becomes a visual trace and gradually joins traces left by others. The work explores a quiet form of social connection where people sense each other without speaking or directly interacting. It reflects how individuals coexist in the city with awareness, distance, and a gentle form of shared presence.