I have a theory that Guwon has already "died" in the past and might be some sort of zombie. It was weird that he had amnesia and needed "teaching" about basic concepts. Maybe when he "died" in the past, he lost some of his memories and then he was reborn with little to none. That would explain why he's so clueless in some ways while acting calculatingly intelligent in other ways. Maybe this would explain why he isn't afraid of dying as well as his superhuman strength; he has died before and is a type of zombie. That's just a theory, though.
I have a theory that Guwon has already "died" in the past and might be some sort of zombie. It was weird that he had amnesia and needed "teaching" about basic concepts. Maybe when he "died" in the past, he lost some of his memories and then he was reborn with little to none. That would explain why he's so clueless in some ways while acting calculatingly intelligent in other ways. Maybe this would explain why he isn't afraid of dying as well as his superhuman strength; he has died before and is a type of zombie.
That's just a theory, though.
He's not a human is all we already know but your theory can be right he maybe a type of zombie