As Shirley spoke, she picked up a pen and wrote down a string of numbers at the corner of the paper. Then she tore it off and handed it over to me.

I looked down at the paper and knew that it was her phone number.

I put the note into the pocket of my pants. By the time I looked up again, Shirley had controlled the wheelchair and gone to the elevator.

I followed her.

As soon as we were next to the elevator, the elevator, which was supposed to be on the second floor, unexpectedly went down.

"See? He can't wait any longer."

As Shirley spoke, her face...