Jimin, a deaf child, lives with his mother in a redevelopment area. The child, who does not know the sounds of the world, feels the vibrations of his mother's heartbeat and the movements of everyday life around him, and curiously observes the movements of all things. Jimin, who is watching his brother and sister playing with a kite that was lost, eventually goes out into the city outside of the house, and as he encounters the world, he begins to feel his own sounds.