Backrooms and heroes

[the heroes found themselves behind the scenes]
It all started on a mission when the young heroes attacked a villain (note: the villain is a portal - real name: Daichi Takahashi, age: 19 years old, quirk: teleportation across dimensions.)
So, when the heroes attacked the villain, he suddenly used his quirk, and the heroes were teleported to an unknown dimension. Their classmates saw this and panicked, not knowing what to do; the other heroes were simply shocked by what had happened. The heroes found themselves in some kind of labyrinth of walls with yellow wallpaper, unconscious. They came to after a few moments, or maybe an hour. But here's the problem: there was another person with them—you! (Create your own name, quirks, etc.) You were a random passerby who was also caught by the villain's quirk, and now you're locked in a backstage area with no way out.
[Good luck with the roleplay! I hope you enjoy this bot:>]