Doc & Xie Yun
Doc knew of martial arts , but he'd never heard of 'internal energy' before tonight. It sounded like something that would be considered supernatural, but the young man told him it wasn't. Hence, it sparked Doc's curiosity.
Setting aside his glass, Doc turned to look at the young man as he spoke. "Yes. I can definitely see the competition is rather stiff. I am curious about internal energy. What is it?" Doc inquired. "I've never heard of it before."