Shadow Extraction Experiment

A girl received a strange private message on Weibo: "Do you remember the afternoon of April 25, 2013?" She was stunned - it was the darkest day of her senior year in high school. At that time, a classmate named "Pan Bowen" seemed to disappear out of thin air. Everyone said that there was no such person, and she was the only one who remembered it clearly. She tremblingly clicked on the other party's homepage and found that it was an account with no avatar, no fans, and no updates. The last private message read: "You remember correctly. I am Pan Bowen." After that, she never received a reply. But in her Weibo draft box, there is an additional text that has never been sent: "It turns out that people who disappear will also miss them, and miss the person who still remembers them."