Cannon Fodder Self-Rescue Guide

I was taking the subway home when a line of text suddenly appeared in front of me. "Poor cannon fodder, he doesn't know that he is going to die soon." I blinked and found that the words did not disappear, but scrolled, like a barrage. Then new content appeared. "The murderer was so close to her and she couldn't be found. I'm really speechless." "Stop looking at your phone! You're going to die!" I subconsciously held my breath and looked around calmly. The next second, a silver light flashed, and a knife was stabbed straight at me! Intention: self-rescue