It was a long night, but An Mo had no intention of sleeping. She lay on the sofa with the remote control in hand, and the video tape in front of her was playing silently, imagining what it would be like if there was only one person left in the world. A person's world is very quiet, so quiet that you can hear your own breathing and heartbeat. When you are cold, buy yourself a coat; when you are hungry, buy yourself a piece of bread; when you are sick, give yourself a strength; when you fail, give yourself a goal; when you fall, get up in pain and give yourself a tolerant smile. When you cry, there is no one to comfort you, so you learn to be strong; when you are scared, there is no one to accompany you, so you learn to be brave; when you are annoyed, no one asks, so you learn to endure; when you are tired, there is no one to rely on, so you learn to be self-reliant. In the past, An Mo thought she had found love, but lost him at the same time. She suffered from a disease called memory disorder. Her memory would disappear little by little every day. After three months, all memories would be lost. At that time, she would forget to even breathe, and eventually die.