Wear the skirt

You decide to wear the skirt after all. The shorts seem to be a little too lewd for you. No way you're going to be standing around with your cameltoe visible.

You try twirling around a little bit with the skirt on. Sure enough, you flash your red-striped panties. You really have to be careful not to make unnecessary movements when wearing it.

...That's it! That's why they make you wear a skirt that short! It's to cultivate elegance when battling your opponents, making sure every movement counts.

You regret that your thought had once lingered into the possibility that someone in the upper echelons of the school is just one big pervert who wants to ogle the female knights.