Clumsiness Is a Form of Art
"How the hell were you able to do that slash without me realising it? You were faster than my Iaido! Even my Inverse Eyes were not able to catch a glimpse of your attack." Jin asked while healing. All that pain he suffered caused him to sweat profusely despite the cold weather. Not to mention his shirt was stained with blood and a gaping hole in the middle of it, making him colder (and to a certain degree, painful) with the winds blowing through his wounds.
"Panda Sword Arts. Although, to be more precise, what I showed you was the actual essence of being a Panda User." Ming explained after he sat down and occasionally poked at Jin's wounds to see if the leeches would react to it.
To his surprise, the leeches did by starting to suck his blood to use as nourishment to help their host recover. He decided to entertain them by allowing the leeches to do whatever they pleased. (Especially since those leeches would not stop until they have enough of his blood.)