"Rude?" That side of Ami, the haughty rich girl was on display. Maybe it was because of the strange situation or the just being surrounded by strange boys (and horse) that it brought on that side of her persona, to protect her.

"The only ones rude here are you three." Then she noticed the pet Itsuki had with him. "...you four." What a strange night it had turned into. Even Itsuki's little explanation didn't seem to make anything clearer.