"Oh, I remember when you said that. When they left, they left a piece of paper for me to give it to you." The doctor said with some embarrassment, "That should be the address written on it, but I don't think you will come back, so I threw the paper away, really... I'm really sorry.

When Guan Yu came to look for Du Bingyan, Du Bingyan had left with the remains of her parents, but before leaving, Guan Yu thought of the way to leave an address to the doctor.

Guan Yu's idea is that if Du Bingyan had an idea about Xiao Zhi, the only thing they could meet...