C168 Inverted Black and White

Because the sand was dry on the surface, she slid down and the sand flew up in her motion, choking her into several sips of it.

Qu Sifeng followed closely behind her, protecting her nose and mouth, causing her to stop choking.

He had already come down, so Ning Wanqing could not let him go up. She could only say, "Follow behind me, don't mess around. If the mechanism here is small