Who was called the Great Sword Master in the history of China?

China was called the Great Sword Master by Nie Gai in history.

Nie Gai, surnamed Zhi, is a descendant of Jin nobles. He was a fencing master at the end of the Warring States Period. He once appeared in Yuci, but it was not confirmed whether he was from Yuci.

Jing Ke, a patriot, passed through Yuci and talked with Nie Gai about fencing. Nie Gai got angry and stared at Jing Ke. Jing Ke left. Someone suggested calling Jing Ke back again. Nie Gai said, "I just told him about fencing, but there are some differences. I fixed my eyes on him. You might as well try to find him. I think he should leave here in this case and dare not stay. " I sent someone to the host of boarding in Jing Ke and found that Jing Ke had left Yuci by car. When the messenger came back to report, Nie Gai said, "Of course he wants to leave. I just stared at him and scared him! "