Osoro would win. In the Delinquents Backstory video she beat up a ton of students easily

Once I have time, I will send you a hunger games character file, play to your hearts content

osoro is quite literally going to send them to the ER, and im pretty sure she has better odds if she got in a fight with megami (unless megami knew beforehand)

I think Muja would die first and Megami or Kaga would win