5 years ago dungeon appeared (modern day).
5 years later they used swords, spears, bow, ... they forget to use guns?
Or guns dont actually exist to begin with? Just asking... 
Spoiler!
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Spoiler!
Comment by Kyaputen_Yami on Let's be an Adventurer! ~Defeating Dungeons with a Skill Board~ - Chapter 11
2 Replies
it said at the beginning that guns are ineffective and the creatures sking is too hard for bullets or simple don't work on them do to plot or g** or somethin
@MangaMan simple solution. Magic guns