Seriously seems like a Battle Royale type of setup, but I'll give this story the benefit of the doubt. Anyway, Kusumi flailing seemed consistent with her character, but her crying did not. Sure, she cried when that magician was about to "cut off" her hand, but I've never seen her even bat an eyelid from being scolded.
So in this story, Miki's the reason Konno and Makoto left, eh? It almost makes some sense, with Miki being such the extreme bitch she is. Will keep reading to see where this is going.