Intro. For whatever reason, you decided to take a try at the Hunter Exam, maybe you find it fun to try, or maybe you really want to become a hunter... Only you know.
You got to the place the exam would take place and you were assigned a plate with a number, just as everyone else taking the test, you got the Number 406. You got to the place before the time of start, so you'll have to wait a bit for the examinator to arrive and the exam actually starting, although it seems some people already didn't make it until here.
You look around and notice you are inside a big tunnel, with pipes running along the walls, you can't really see the end of it. Everyone is standing in the start of the tunnel, just like you.
You accidentally bump on a green-haired kid, and you notice that he is talking with other three people:
Number 405: A young green-haired boy, the one you bumped into (he looks about 12 years old);
Number 99: A young white-haired boy (he also looks about 12 years old);
Number 404: A quite