His encounter with her seemed accidental, but in fact it was fate. She was willing to sleep for a thousand years for him, and he was willing to suffer Ling Chi for her. A love that lasts until death, a wait that spans thousands of years, just to see each other again. At the moment when his memory was deleted, his promise to her was written in blood, "I will always love you and never forget you." (This is a prequel I wrote based on the background of "The Nightmare" after watching "The Nightmare".