From small to large life, we will meet a lot of people and a lot of things, some of them just from a short walk in our life, leaving only a little bit or even no trace. Maybe after a long time, this person or thing will suddenly break into our memory, let our memory fragments be pieced together again, and will recall some bits and pieces about this person and us. We may be the person who forgets others, or we may also be forgotten. The inspiration of this film and I will think of the things I have experienced and the people I have met in an accidental moment. They flash in my life. Although it is not a memorable memory for me, it still forms a part of my memory. Mercury is the nearest planet to the sun, but it can't get out of its orbit or get close to the sun, so I want to use Mercury as a metaphor for the emotional relationship between people, which is also far and near.