User blog comment:Random Delmo/Why Upskirt?/@comment-26931812-20151107220032

It makes sense for Delmos.

It makes no sense for anyone else.

I don't know how this has anything to do with Aika Zero. The White Knights were high school girls in an all-girls school. There were no men around to distract with their legs and butts.

This also doesn't explain the micro-mini skirts that the Treasure Hunting Club girls in R-16 wore. Those skirts had splits that if not for those white ribbons would have easily allowed someone to see a girl's panties from the front. And the ribbons really only stayed in place some of the time.

Combined with the general lack of any concern over their panties being exposed that females usually display in Agent Aika, I'm just going to say that there is some cultural difference that makes it not lewd or taboo or embarassing somehow. Or perhaps micro skirts that easily expose panties are treated about the same as exposed cleavage. Still sexual, but so accepted and ubiquitous at this point that it's considered standard female fashion.

Though it brings up the question of why nearly every single girl in the show has worn virtually identical white underwear.