In Liulic City, where memories can be extracted, stored and repaired, Lin Mo, the top memory restorer, is a person without a past. He can piece together the most broken memories, but he can't find his own. One day, a mysterious "Mrs. Night" brought a broken memory crystal that was almost irreparable, claiming that it contained the promise of her life. During the restoration process, the fragments Lin Mo glimpsed - an isolated island lighthouse, huge waves, and a blurry back of a girl - actually resonated strangely with his blank mind. He gradually discovers that this memory crystal not only repairs other people's pasts, but also is the only key to the truth about his own identity, and the price of the truth may be forgetfulness that he cannot bear.
