I Can See the Countdown to Death on My Phone

The camera function of the protagonist's mobile phone is mutated. Anyone who takes the picture (including himself) can see the countdown to death above the other person's head, as well as the cause of death. Ordinary office workers/students, when taking a selfie one day, they find that there is a mark on their head [3 days] Cause of death: Elevator fall The protagonist begins to frantically save himself. After escaping the first time, the countdown is reset and becomes a new way of death. He found that he was being targeted by the "god of death". Every time he escaped, he would die faster next time. At the same time, he discovered that showing the countdown to others could save others, but it would speed up his own death.