The NEXIST is a personal UAM mobility, a means of transportation designed to overcome the traffic limitations of high-density cities in the future. It has a rounded tire-shaped design that organically converts ground and aerial travel to enable smooth movement even in increasingly complex urban traffic environments. The tires extend sideways, providing a sense of stability for two-wheeled travel. It is designed to enable safe and precise flight with VTOL (vertical take-off and landing) method utilizing high-pressure air propulsion systems. It also has full self-driving capabilities, which enable users to call wherever they want, serving as a last-mile travel solution. Organically connecting the ground and the air, the design overcomes traffic jams and spatial constraints to provide better mobility for future smart cities.