Elder Huang smiled and replied, "Of course I know him. I was even fortunate enough to speak to him. Your grandfather used to be one of the leading doctors Royal Medical Hall, but when his health deteriorated, he returned to his hometown to recover. After that, I never saw him again."

Since Yu Gangan's surname was Yu, he had been thinking about someone with that surname. Who would have thought that her grandfather was He Chengshou?

"No wonder you know how to apply gold needles," he sighed.

Elder Jiang gently cleared his throat, "Why haven't I heard of He Chengshou from the Royal Medical Hall?"

"Then, do you know the infamous, Elder Cai?" Elder Huang asked.

The old man nodded his head, "Of course."

"Elder He was Elder Cai's student. Elder Cai wasn't proficient with gold needles, so he used to bring this student with him to all of his consultations. Of course, he also passed down a lot of his knowledge to Elder He. The two of them were 10 years apart in age, so rather than teacher a