Black and white Wuchang were still individuals before their death, with names and surnames. Bai Wuchang was called Xie Bian during his lifetime, and Hei Wuchang was named Fan Wujiu during his lifetime. Judging from the names of these two people, they were born to eat "ghost meals".
The two were sworn brothers with different surnames during their lifetimes, and worked together in ancient government departments as government servants - police agents.
