It's about geishas with great vaginas who are challenged by men who think they can control their orgasm. The original title of the film is Onsen Konnyaku Geisha. Konnyaku is a jelly like paste made from a plant called Devil's Tongue. Apparently it's really good for wanking and has a similar feel to a vagina. Anyway, this is the usual pinky drama/comedy with lots of boobs and cute geishas.