I Can Move Freely in Datang

In the first year of Guangde, Chang'an fell. I lay down in the smelly ditch and pretended to be dead, and a "red dust" fell from the sky. Red and purple powder spread all over the city, and everyone who got on it changed. Some people are as fast as lightning, and then they crash into the wall and die; some people are as slow as a sloth, and they speak one sentence for three days, and are kicked to death by the enemy in front of them. And me? I'm fine. Not only is it fine, but you can also switch between fast and slow at will. When I'm fast, the enemy's knife is hanging in the air, and I can circle around him three times before slashing. When it's slow, the world is whizzing by, and I'm the only one who thinks slowly in time, and vomits in the dark. Because the worst part about this ability is that it makes you feel dizzy. Every time I change it, it's like being thrown into a wine jar and shaken back and forth eight hundred times. Later, I picked up a grumpy fast-moving veteran, a slow-moving noblewoman who had to wait three days to speak, and a child prodigy who was so fast that no one could understand her. A group of "abnormal human beings" actually survived in troubled times. Until we discovered that this mortal world is not a natural disaster. It happened sixty years ago. The last shifter was almost made into elixir. My name is Li Sisheng, the only speed changer in the world. My story begins with a smelly ditch.