When Li Wuyou took the letter, he didn't know how far he would go.
When Ji Xingshuang woke up from pain in the night in the Western Region, she didn't know that she was also looking up at the moon.
When Wang Lanyun stood on the Snow Dragon Plain, he didn't know that the war had already come.
This is a man of an era. They each had their own paths, but as they walked, they came together.
Purpose: People of an era have commonalities, but are even more different.