Eight-Sided Timeless Mirror

Lin Ming's eyes could see the life span of any person, down to the minute. When the countdown reaches zero, that person's life span has reached its end. My girlfriend Yang Xin also has special eyes. As long as she sees numbers on her black forehead, she will know how many people this person has wiped out. After the death of his grandparents, Lin Ming didn't have any relatives, nor did he have a complete relationship with Yang Xin. He wanted to die, but he encountered many things and many people who cared about him. Whenever something happens, it happens to the people around him. What will happen to Lin Ming and Yang Xin in the end?