"Of course, it's real."
Lin Caisang prepared all the equipment, then covered Jin An'an's face with a piece of white cloth, leaving only the scar exposed.
"However, sir, I need your guarantee that this procedure will only be used where it's needed. If it's used for evil, I won't allow it, and I can take it back from you."
"Sure, sure, I promise I won't use it for evil," promised the old doctor.
His integrity was why the emperor trusted him enough to keep him at his side.
He had heard about how the imperial physicians had ganged up on Lin Caisang that day, if he had been there, they wouldn't have dared to be so bold; he would have slapped them and put them in their place.
"Let's discuss this later, sir. Did you remember all the instruments I showed you?" Lin Caisang asked him.
"Yes, I can recall them for you."
The old doctor was careful and repeated the names of the equipment to Lin Caisang before letting her begin.
...
Two hours later, in the back yard of the Zhi Residence.