He woke up from his current position and went out of the room to look for who was still awake or maybe he could find Jaeyun who is guarding tonight. But once he goes to the lower level he can hear the voice of people but he isn't sure if they are talking or whispering or laughing. So he just went towards the voice by himself.
Once he confirms the voices are coming from the place in front of him, he walks closer so that he can see more than one figure or to be exact he sure there's three of them. He doesn't know if the monster has become a human or its only real human. So, before he asks anything towards them he reaches something by his side and takes a lighter. There's also a box of powder that he uses to sprinkle it around them.
He knows what he does when he gets down on his knee and lights up the lighter which then the fire turns big around the people. Luckily the fire was not that big to reach three of them. He sighs when he sees who the figure is.