In the previous chapter they showed us how yujeong was beaten up and how he stayed inside the nearby cave by himself after getting beaten up. But then he witnessed two people talking and one person having a lighter, although from the cave he could only see one person's leg that to be and that person was wearing a red converse. But in this chapter when they showed us from the top view of the survivors we can see everyone's shoes except one person that is hyeseong that none of them were wearing red converse or shoes. Although from yujeong reaction it looked like he kind of the voice yet doesn't know