This is what I think. The hand is killing people and uses mirrors to travel. The movie theater the seme told Joon not to worry nobody could see inside because it was a one way glass. The other side was a mirror. Also look at his reflection when he's remembering. he puts his hand to his face and the reflection is smiling. So they don't have to be mirrors it just needs to reflect.
I think I'm just scraping the surface. Theirs more to it but the author hasn't revealed many things. What is the hand? Is it connected to Joon or the seme(forgot his name). Maybe it goes of by how they're feeling. Idk.
Yes thats what I was thinking...the hands are attacking people and making them disappear ..maybe through the glass ? Thats a good point -it probably doesnt have to be a mirror. Sometimes I get confused when I see the blood... because we are used to Joon's hallucinations but regular people see it too. But only the blood not when the thing is happening. Yeonwoo (seme) maybe knows how to control them? Let not forget they went to him like they were informing him of something. Yeonwoo definitely has a dark aura but I cant put my hands on it exactly. ALSOOOO
In the beginning , the hands were sexually violating Joon......im sure its probably the same hands killing ppl now...so whats that about.
Yes at first I also thought they were hallucinations but now people are seeing all the blood. So it's happening in real life. I also thought Yeonwoo could control them because when he got mad with the friends the house shook. Which is why I thought the house was special. So many things I want everything to connect already.
I wish I could say it all makes eense now...but it doesnt. Plus whose blood Is it ? Is the hands killing ppl?