Do you remember Barbara Yung?
Her untimely death was related to Tang and his personality.
This is just a flash in the pan.
"September 19th"-"One" means friendship. According to the dialect of our hometown, it is "Qi", which is similar to "Becoming sworn". "Nineteen" may be her local name.
Barbara Yung's name is Yijiu, but he is actually her mother's sworn brother (Yi Di). He has a good relationship with his mother and often takes care of them, especially Barbara Yung. So it ranks high in her resume, second only to her mother.