I believe it is rather crude to label Kagami-san as a tsundere.

But it was rash of you to abandon your armor.

You're getting ahead of yourself, Natsuki Subaru.

It's far too early to decide that!

I believe that "early" isn't the issue.

Still, it was rash of me.

It's too early to pose such a hypothesis. Still, note how the behavior of local gangs is similar to that of soldiers who fought during the Trojan War.