Unknown World: Is This Hell?

I hear you! But I can't see your face clearly! I am now.... In a strange place. Everything here is beyond my knowledge. There are many scary monsters wandering around every night, searching for us. And we are like turtles in a urn. Hiding wantonly and struggling to the death. All it does is add fun to this hunter game. But I... Will try to break the situation, break it in this hell! Use those fragmentary clues to find the truth of this world!