I have a question about the fourth part. I don't know if the creators missed the particular thing, or if it will be explained in the fifth part. When the students arrive at the abandoned mine building, everyone still has their weapons and helmets. You can even see it in some places in the building, but later, when the creature attacks them, you don't see a single one anymore, even though they could have eliminated the monster with a weapon. Although it is understandable that it was hot and tiring to carry, regardless, it would have come in handy in such a situation, but they could have used the nitrogen bottle as well, since these creatures can't stand the cold. Then they might not have had to run to the van and endanger each other's lives. Although, say, Soyeon's wound and the lack of food meant they couldn't stay there. I wonder how this will appear in the webtoon.