Wu Jing, who was 27 years old and suffered from depression, committed suicide on New Year's Eve. When she woke up, she found herself in a small white room. Here she saw her past self and witnessed her growth process. Wu Jing in different time and space could see each other, but could not communicate verbally. The only way to do that is to construct stories to convey to your past self. From the initial indifference to watching, hope rises in my heart. It's like growing up again and avoiding your own unfortunate fate, but is it really possible?