The Countdown in My Pupils

I was nothing more than an ordinary person. I thought I would live out my life just like that, until a sudden, serious illness let me see the countdown to my life...

At first, I could only see my own countdown. Then its range gradually expanded and its functions improved. I could see the countdown increase or decrease, and watch other people's timers suddenly plummet. I thought this was a blessing that would let me avoid disaster, but little did I know it was only the beginning of a nightmare...