"Sir, do you think of anything?" I asked.

"five years ago, how can I remember it so long ago?" The old man looked at me and shook his head.

"ah, sir, it's a matter of life. That innocent girl is lying on the hospital bed waiting for me to save. It's a living life. " I sighed helplessly and said.

now I'm sure the old man knows that five years ago, but I don't know why he won't say it.

"I've told you for a long time that I don't know anything. I don't know anything about what happened five or ten years ago." The old man became agitated and...