Witnessing Sima Fang's movement art, he was reminded of Wu Di's description of his opponent's movement art. Sima Fang and Wu Di's opponent must be using the same movement art.
"What is your movement art called?" Amon asked Sima Fang. He never stopped moving. His ceremonial dagger also never stopped assaulting Sima Fang while he moved.
Sima Fang didn't show the intention of fighting him. She relied on her movement art to maintain a distance while shadowing Amon.
"This art is called Riding The Leaf," Sima Fang answered. "I am glad you are willing to speak. I thought you were going to play your cool boy routine."
"Stop dodging and come closer then," Amon said.
Sima Fang laughed. "You know I can't do that. I am not going to insult your intelligence by pretending that you don't know what I'm doing. You know I'm just keeping you in my sight until someone who can deal with you arrives."