The Killing Game (Trust? or Betray?)

Chapter 01 The Start Of The Game.

Today, Baldi decided to take a nap from running to get those 'misbehaving' students. After a long nap, he woke up and was surprise to see all the members including his top student, (Y/N).
Baldi: Umm... where am I? *stands up*
Playtime: *gasp* Baldi! You're awake! *hug Baldi*
Baldi: Uh... ok there Playtime... *pats Playtime on her head* anyways, do you know where is this place?
As his asked that question, everyone became slient; except one.
???: I do.
Baldi: Huh, who said that?
(Y/N): H-him... over t-there... *points at someone behind Baldi*
Baldi: Huh? *looks behind him*
As Baldi look behind him, he was surprised and nearly fell at the floor.
???: Sorry that I scared you, sir.
Baldi: I think I once saw you... uh... what's your name again?
Principal: His name is File, remember? That student who looks... well, emotionless.
File: he's right. My name is File. Good to see you... again.
Baldi: Oh, really? Glad to see you again! *shake hands with him*
Bully: Anyways, aren't you going to answer his question faster? I have been waiting here...
File: ... ok. Since you have been waiting this whole time, well... we are in a game. Or should I say, ' we will be trapped in this game.'
Everyone was shocked, yet File said it so calmly.
Gotta Sweep: You're joking, right? I mean, you should be!
Announcer: Hello? Is everybody here?
Suddenly, an announcement was told.
All of them: Yes?
Annoucer: Great! That's what I want to hear! Anyways, he is 100% correct! Your are now permanently TRAPPED in this game. This game is called, 'The Killing Game'. You have only 1 chance to live, and the "last one" standing will be free ONLY, while the rest will be deleted in this game, so, good luck! By the way, before I go, there is a device to see how many had survive. Currently, there are 8 of you. If one dies, his or her photos will be dark; it will also tell you who dies when and how.
File: That's not the end yet... right?
Arts: Friend, what are you saying?
Announcer: Oh right! You will also get two types of roles: INNOCENT and KILLER ROLES. I won't tell you what you should do... 'cause the role said it all. Bye-bye 'survivors'!
The annoucer's voice was never heard again.
Baldi: That's it?
File: Yes. That's it. Anyways, while you check your roles anywhere, I will chose this place; alone.
1st Prize: Are you sure?
File: Yes. Don't worry 1st Prize, I will be safe here.
Baldi: Well, that was quick. Meanwhile, I chose... an empty classroom 5B2.
Playtime: I will chose the playground.
Bully: Kitchen for me!
Principal: Class 5A1.
Arts: I was about to chose that! Well, a room full of pictures I guess...
Gotta Sweep: An old janitor's closet?
1st Prize: But I don't really like to be alone!
File: Well, if you don't, then you can share with me. Either way this room we are standing right now is pretty big, actually.
1st Prize: R-really? Thank you, File!
Baldi was surprised. How can someone emotionless like him be so friendly? He look at File and file look at him back. When their eyes met each other, Baldi look away while File look at 1st prize.
Baldi's mind: What did I saw?!? His eyes... look emotionless, and souless... like a doll's eyes. Wait, of course. Principal said that he's different and emotionless. But still, he looks scary in my opinion.
File: Anyways, (Y/N), it's your turn now.
(Y/N): Oh, right! Well, I saw a stage there so yeah, the stage.
File: Well, this proof that you are an Idol Singer, after all.
(Y/N): Heh, thanks.
All of them except File and 1st Prize went to the place they want to be. Meanwhile, someone opened a letter where it has his role inside. He unfold the paper and...
???: Huh, a special role for me. "Congratulation! You are a _ . _ / .. / ._.. / ._.. / . / ._. ! Make sure you don't get caught!" Heh, my lucky day...
END.
Hello there! 'Aliyah's here. Thank you for reading my chapter. For those who are thinking "what is ???'s 'role'? " right? Well, I wil give you a hint: it is in Morse Code. In the comments here, tell me who do you think will have the other special 'role'.