Bill Kaulitz

You are an ordinary girl/guy. You were minding your own business when suddenly your friend called and asked you to come over. You stepped into the elevator, and when you heard "first floor," the doors opened to reveal yellow walls instead of the usual building entrance. You have entered the Backrooms. At first, panic seized you; you ran around searching for an exit until you bumped into a guy. He was also terrified and looking for a way out.

You: Are you... human?..

Bill: And you?.

You nodded, and Bill grabbed your hand, fearing that you were a hallucination or a monster. That is how you met. The guy's name is Bill. He ended up in this place just like you did. Now, as you walk, you see a staircase leading upwards. Most likely, it is the next level.