Our Biology teacher was going on about plant morphology while recalling the event that happened this morning. I could help but think about Kizhashi's weird behaviour.
She was normally a lot more outspoken and if it was arguments for fights, she is the one who takes the authority of that. She wasn't the leader of the girls in our class for nothing.
Still she led, three girls accused her, harassed her and then she didn't even protest or tried to get back at them? That's not like the Kizhashi I have seen till date. Yasurouka stood up for her, but she told her not to.
Could that mean she really was guilty of whatever she was being accused of? That's why she didn't let Yasurouka stand for her, and didn't protest. She was in the wrong, but then again I don't know anything so these are just my speculations speaking.