Here we have an intriguing compilation of scenes from mainstream anime centred on the prospect of female characters bereft of pantsu, or in technical language, in a state of “nopan” (no pantsu).
Should you require sources, by all means ask; and should you you be a nopan expert and know them all, please do share your knowledge. I’ll start off by pointing out the No Pantsu Witches episode, due soon on DVD.
More legends… I’m guessing that such classics as the ecchi anime series or the more maniacal looks at ball abuse, face sitting and waki are likely of interest. Take a look through them all if you missed any.