A group of boys are exercising on a gray and black floor in a room that seems to be a martial arts studio. The boys are wearing karate uniforms, some white and some blue. One boy is doing push-ups while another supports his legs, with the supporting boy also wearing a white karate uniform. Other boys are doing push-ups or walking around. The studio has white walls, a dark ceiling, and artificial lights. A yellow strip runs along the top of one wall.