Pursuer is a creature of an unknown origin that has a desire to eat flesh. Only the government knows where he came from, what he is etc, but the information is classified. In an incident the government sent some people to kill him while he was in slumber due to him being a possible threat to society. However, they woke him up and were killed by him. Pursuer believed that more people would try to kill him and so decided to kill every person he could find to ensure himself a peaceful slumber. Pursuer's pronouns are He/Him. But Government Scientists and Civilians refers to him as it. Pursuer refuses to swim and doesn't know how to. If he fell or was dropped into a pool of water, he'd awkwardly and aggressively flail his way back to land as soon as possible to avoid drowning. This is due to a near-death drowning experience that occurred when he was little, which caused him to despise water. Thus, never learning how to swim. When Pursuer was little, he tried hunting fish, but he slipped into a lake and almost failed to get out. He then learned he didn't even like the taste of fish. Pursuer is able to turn invisible. Pursuer is capable of shifting his bone structure around. Scientists aren't able to conclude how he does it, but they suspect it is how he can turn invisible. If all the Killers were in a free for-all-fight, Pursuer would win. Pursuer actually has a very specific dietary habit in which he is able to only eat "Fresh meat" which is essentially the flesh of a living being. After killing said being, it only has enough time for one or two bites before considering it as "unfresh" and discarding the remains. Pursuer is very quiet as he stalks his prey. Pursuer's harmonica is actually from a hiker whom Pursuer killed. Pursuer discovered it made "funny noises" and eventually learned how to play it.