This project works in conversation with a population that does exist under the Kafala System. It is an investigation into the implications of the Kafala system within the architecture and urban environment of Jeddah, Saudi Arabia. The Invisible Core takes form in a series of situated testimonies of four migrant individuals; spatialized through a collaborative process in a 3D model that facilitates the shifting of perspectives. It aims to study the thresholds and boundaries that have caused the inter-sectional struggles of domestic and undocumented workers within the city and to materialize the economic impact of large hidden contributor to the growth and maintenance of Saudi Arabia. The project works to speak alongside rather than speak about a population that has not been heard.