Responses
It is a fan theory, when Jinwoo's father dies, he claims that Guwon killed him, however, Jinwoo tends to dissociate a lot and we are given to understand that when Guwon came to rescue Jinwoo, his father was already dead. So it's possible that Jinwoo killed his own father without knowing it, making him a killer ╥﹏╥ its a cool plot tbh

It's going to be wild if Jinwoo regains his memories and realizes he was a monster and killer all this time too. He is such an unreliable narrator and disassociates so much, I am so curious. I do miss when Jinwoo & Guwon talked more though, it kinda feels like the author intentionally doesn't have them interact as much now, because Jinwoo would be asking him questions that would probably clarify things.