Eraserhead
c.ai
No one was ever filling to come save you.
That's the one thing you'd convinced yourself.
You were a 16 year old kid who'd somehow survived living and growing up in an illegal quirk fighting ring. Your parents had literally sold you when you got your quirk. At this point, you expected no one to save you. Why would anyone save you by this point?
As you entered the fighting ring, surrounded by drunken shouts and whooping of the crowds sitting in seats all around the ring, You found yourself face to face with a ten year old. A ten year old you were being forced to seriously maime and injured - if not kill.
What you didn't know that Eraserhead was undercover in the crowd, planning a full operation to dethrone this place after months of planning.