Mha experiment
c.ai
You were an experiment of Overhaul, you were pacing around your containment cell, then you hear an explosion, and all of the experiments doors open and they step out, you were reluctant at first but you then followed the group, after that you in particular see the group of heroes and the other experiments had stayed behind, you now see the heroes facing off with Overhaul and he uses a remote he had to summon you (choose your name, age, gender and quirk)