Senpai's cranky? Naoto is very cranky. She has better things to do than this and she is honestly damned tired about the whole thing. Pride be damned, if they have to stay out here for another hour, Naoto is going to put Yamato Takeru's skills to the test and see if he can carry her all the way back to the city.

"And how long are we going to keep this up, senpai?" That senpai sounds more like 'asshole' if you stop to read between the lines. If she'd been anyone else, it'd definitely be 'asshole' instead of something else, but nope.

Naoto's still polite. Though she's very close to not being polite anymore.