Fated

Duan Fanbai immediately reacted. "Wait, grandpa. How did you know what I am going to ask?" he asked. "And… why can't you help?" he added.

"Because master Kong divined that you would call and told me to tell you his words." Grandpa Duan answered. "After that, he left." He said.

Duan Fanbai's face was covered in lines. "… I understand." He said and sighed.

Master Kong is the Taoist priest who they found before and told them about Duan Yuan's eyes going to be cured. After some twists and turns, Duan Fanbai invited master Kong to the Duan family to watch over Duan Yuan who he (DY) suggested be his disciple. After master Kong taught Duan Yuan, he left. No one knows where he has gone to.