C809 Sudden Hope(1)

I have observed carefully, at that moment I realized, although the yellow liquids is corrosive, but when it is sprinkled on different things, the rate of corrosion is different, the moment the human body touches it, the fastest way is the skin to corrode, then the body will leak out onto the surface, and the spraying on the wall will be slower, first the tiles on the wall will slowly change color