In the 22nd century, where technology is highly developed, memory banks have become a holy place for human beings to store their emotions. Chief memory architect Lin Mo discovered abnormal fluctuations during a data inspection, and his investigation led to the disappearance of the "Space-Time Fold Project" that shocked the world seventy years ago. When he investigated further, he found that his memory had also been tampered with. As the boundary between reality and virtuality gradually blurred, Lin Mo had to race against time to uncover the dust-laden truth, but one rainy night he discovered an astonishing secret hidden in the deepest part of his memory - the watcher who should have been forgotten was looking at him from afar across the folds of time.
