"No one can replace another..."
Looking at Dayi's desolate face, Li Xudou, having experienced a part of the other person's life, naturally understood the implied meaning.
Chang'e, appearing as "Heng'e," accompanied Dayi through the lowest point of his life.
Only after Dayi completed the great feat of shooting the sun did he realize that his achievement was accomplished at the sacrifice of his wife.
If the story had ended here.
Dayi, although lamenting his initial intentions, would nostalgically miss his wife, but he would not regret it.
Because both sacrificed for the sake of the world, understanding each other's intentions.
Unfortunately, life does not end abruptly at the most heroic and imaginative moments like stories do.
After completing the feat of shooting the sun, to give Dayi the faith and hope to continue living.
Heng'e disguised herself as Chang'e and returned to Dayi's side, as if Chang'e had not sacrificed and was still alive.
