The ninth floor is the top floor of the hospital, and is also the quietest area of the entire hospital, with occasional nurses and doctors traveling with light and swift footsteps, and everyone's face is a tense and solemn.

The first time the elevator door opened, Li Tianlan noticed a few bright red eye-catching letters on the wall, he didn't know English, he didn't know the full name of these letters, but he knew the meaning of these letters combined together.

The ninth floor is ...