Our Best Worker @Doctor_74 has made a parasite in our lab and it is quite interesting we keep it inside of room F14, class Karn, where other scientists test on the parasite and @doctor_74 does as well

(this is not a real company or lab or anything i make this up for fun so u don't got to be scared of any parasites)

Class Safe is safe.
Class Zeni is dangerous.
Class Karn is highly dangerous.