C1905
Obviously, the black and white brows and the Divine Nimble were very familiar with each other. Moreover, they weren't just simple acquaintances; they were even once very familiar with each other.
In fact, "A'man" was the nickname given to the black and white brows, and "Qing" was the name given to the Divine Nun Grandmaster before they had left home. They had not only known each other before
