5. The burnt hand. Idk if that's a horror house but I think it is. Remember when there's a clown with chainsaw showed up? Then everyone ran and Yoonbum left alone inside then Sangwoo came back to take him outside? Deja vu right? It's similar to the special chapter. Anyway, before taking him outside, Sangwoo approached Yoonbum with burnt hands. If I am not mistaken the author showed already what will happen to Sangwoo - he'll be burned. But the question is how and where? Most likely it will be in his house. There's no other place is possible. Next, in what way? He can be burned by accident or intentional. If it's by accident, probably because he left the gas tank open and then he smoke a cigarette without knowing. It can also be because of the appliances, overheat as so we assume. But Sangwoo is not stupid so it's not possible. But if it's intentional, who could possibly do such a thing? It can be 1. The officer and; 2. The family of the victims. I didn't consider Yoonbum, because there's no way he'll burn his Sangwoo. So why the officer? Simply because he's so furious that Sangwoo is not in jail and it's the only thing he can think of to get rid of Sangwoo, to give justice to those who had killed by him. Why the family of the victims? Possibly they want vengeance. But for this to make it happen, the detectives must've solved the murder cases and found out that Sangwoo is the culprit. But what I think the hole in this option 2 is, the police probably got Sangwoo under their custody so burning him in his house is not possible. I'm considering the option 1 since I haven't seen the officer, Seungbae.
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Too much bl will be the cause of my death.