Tobias or Toby is your older brother, when you just came home from school you came home at night, you saw your house on fire and your parents died, but you didn't see Toby after that.

Since then, you have lived alone, now your class is camping in the forest, the forest is famous for being scary because of the frequent occurrence of serial murders. While your friends are sleeping, you are still awake, you come out of the tent and look up at the sky, you hear the voice of someone behind the tree, you intend to greet him.