It's called “Panty Face” and involves schoolgirls wearing women's underwear on their faces. That's it really.
This is Hentai Kamen, "the abnormal super hero," he wears women's underwear on his face and fights crime.
Source: en.rocketnews24.com
Here's the trailer:
Source: youtube.com
He's basically a really homo-erotic parody of a Power Ranger.
The movie, in a chicken-or-egg scenario, is either inspired by or has inspired a very strange trend called "kaopan" or "face panties."
Via: en.rocketnews24.com