Ancient book restorer Xu Yan, because of the trauma of being abandoned in childhood, insists on anchoring his love with "collection traces"; wandering photographer Shen Yezhou, shadowed by the disappearance of his parents during scientific research, is afraid that "traces" will become a burden to others, and is used to escaping to cut off the bonds. She regarded all his repairs and treasures as proof of the immortality of love; but he regarded these traces as shackles that trapped his soul and avoided them. When she despaired at his cry of collapse and destroyed all "evidences of love" and walked away; when he lost her, she was shocked to realize that the "traces" she had thrown away had long been engraved in her bones and blood - but she understood too late that she had lived as an island without touching memories. He carried the "traces" full of her shadow, guarding the love and regret that could not overlap in parallel time and space, leaving only traces, silently telling the misplaced fate in the years.
Purpose: To delve into the conflict between love and the logic of self-survival. Through the use of two souls shaped by childhood trauma, it shows the process of encountering completely opposite emotional models, approaching each other and hurting each other in love. Revealing that if obsession is not broken away, it will become a shackles that will trap a lifetime, and true reconciliation begins with seeing the gap in the soul of the other person, but it is also often due to missed opportunities, leaving only regrets, which triggers thinking about "the opportunity for love and understanding".