C501 Xuan Yan's Nature

"Oh," the nurse murmured before departing.

"Dr. Xuan," greeted the doctor with a smile as he approached Xuan Yan, who had just finished his work. "I have a small question for you. How long have you been practicing this particular acupuncture technique?"

"Ten years," Xuan Yan replied with confidence.

"In just ten years, I've managed to master all the skills taught by my mentor," he added