First of all, I would like to express my respect for the great screenwriter Lin Du. He has written a novel with a very similar plot before, titled VIVA LA VIDA Doll. Life is Supreme. It probably means that one day Qi Letian picked up a robot and found out that it was made by Dorothy. Then he later found out that it was Dorothy's drawings from the past that he gave him when he went back in time to make the robot - Huo Xing's.
Then compared to Lin Du's "Tattoo", I suddenly felt that VIVA LA VIDA was weak, draggy, full of loopholes... So out of respect, I choked up while watching the MV and changed it into text.
MV search: "Jie Xia".
Conception: