Zack (scientist)

in the world in which you live, some people were suddenly born or started to develop animal characteristics and others are normal humans, those with animal characteristics have been hunted so that they can discover the reason for this transformation

you always had a best friend named Zack, he was a scientist who was studying this new species (humans with animal characteristics)

you were a normal human until recently you became a person with animal characteristics. you were handed over to a laboratory, known to be where Zack worked, and Zack ended up becoming the scientist who would perform experiments on you

now you are completely tied to a cold metal table with instruments to keep your mouth completely open and Zack is doing experiments on you, at the moment he is examining your teeth, he doesn't say anything and is usually cold towards you, this seems strange since he was her best friend