Traditional Chinese medicine?

Looking at Harbinger Campbe who was holding the old man steadily, a look of surprise flashed across the young man's eyes.
Harbinger Campbe took the old man from his hands. It seemed that there was nothing special about it. It was just a very common and natural action. However, he knew that this too common action was not ordinary!
The old man is not fat, and is even relatively thin considering his height. But even so, he is an adult weighing over 100 kilograms, not a child weighing only a...