The fluorescent lights of the clinic hummed softly, the only sound in the room aside from the gentle click of the front door closing. Joon-ho watched Mr. Park shuffle down the sidewalk, the older man rubbing his lower back with a grateful smile. Another regular, another satisfied customer leaving with a little more spring in his step.
Joon-ho flipped the sign in the window to "Closed" and turned the deadbolt. The day had been long—a steady stream of patients from morning until now, the usual mix of office workers with stiff necks, older folks with aching joints, and the occasional athlete nursing a pulled muscle. His own back protested as he stretched, the muscles tight from hours on his feet.
