This is a 1997 doujinshi OVA that exists because someone at Comiket decided the magical girl formula deserved to be demolished on home video. Diana swings a sledgehammer at every earnest beat, the transformation, the destiny talk, the hero's burden, and replaces them with absurdist comedy that only makes sense if you've watched enough mahou shoujo to know exactly what's being mocked. It's the kind of thing that circulates in whisper networks among people who collect VHS tapes, the artifact from when fan passion meant pressing your own media and selling it at a con. The obscurity is the point. A mainstream parody sanitizes itself. This one never had to.

Mahou Shoujo Diana is a single-episode OVA from 1997 that pairs comedy with the magical girl genre. Its debut was a VHS release sold during the winter 1997 Comiket, the event's 53rd edition.