Zuo Feng didn't need to turn around to know who was coming. Having spent so long with Yao Xun, he had quite a bit of understanding of this mysterious mentor's habits. Moreover, ever since Zuo Feng absorbed that Beast Crystal, his senses had become exceptionally sharp. He could discern people's subtle movements, especially their footsteps, with great detail.
Through careful observation, Zuo Feng noticed that everyone had their unique way of walking. Due to subtle differences in posture and movement, the volume and rhythm of their footsteps varied. Recently, he even discovered by chance that when people's emotions changed, the frequency and volume of their footsteps also altered.
For instance, when Li Ru first spoke with him and hooked her arm around his, her footsteps became light and lively. But as their conversation continued, Li Ru's steps slowed slightly, and when Zuo Feng brought out the Forget Sorrow, her steps suddenly quickened.
