The night is dark, and the night of H City Hospital is silent. Because it is about to welcome the turn of the century, even in a solemn place like the hospital, a slogan is hung from time to time. It looks particularly unharmonious with the surrounding environment. In the hospital, three or five lights are on from time to time. In that era, except for the night shift emergency room on the first floor, the rest of the floor were only symbolic. There were also people on duty rooms. The dim lights on the west side of the ophthalmology department on the fourth floor were sparse. Obviously, the electrician was lazy. The lighting was broken for half a month and no one was in maintenance. The public hospital was just like that. People were floating in the matter, and there was no sense of responsibility at all. The ophthalmology duty room near the stairwell. Although the doors and windows were closed, there were bursts of melodious and beautiful singing. The sound was delicate and crisp, particularly beautiful, and there was also a burst of water sound in the middle.