Fizi is a portable smart gadget designed to assist injured individuals, those at risk of injury, non-exercisers, and pregnant women. Since it is difficult for these people to go to a physical therapy center, Fizi has made it possible at home as a cute physical therapy assistant based on user interaction. Also, as a friend, it prevents the feeling of isolation in sports training. With its universal design, Fizi teaches corrective exercises through visual, auditory, and written methods, and uses the Kinect camera to analyze user movements and provide real-time feedback.