Sakiko Kurata, a teacher, gets a phone call about someone who claims that she's a student of hers. This student has been arrested for prostitution, and the person she asked them to contact was Sakiko. Sakiko can't remember her, but when she starts looking into who this student is, and hear her story, memories of Sakiko's own past starts coming up to the surface.
I'm glad I went with this one after "Nympho Diver: G-string Festival" simply because that one was just sex, no story. While this one is much more like "Zoom In: Sex Apartments", which means plenty of sex but still a story interesting enough to care about. Sure, this isn't mindbending or very unique, but considering the year it's still pretty controversial subjects (albeit common in the Pinku world). And that alone makes the 68 min runtime a piece of cake.
The most important thing in this one, if you ask the Japanese population, is that it has a sexually interested teacher in the lead. Which is why there are so many movies in the "series" (no idea if it's an official series or not). But it's actually not a terrible plot here! This teacher, Sakiko, gets a phone call regarding a student of hers who has been accused of prostitution. She can't remember the student, but she's too nice to say no to picking her up and talking to her. She finds out that this student is not a prostitute, and actually just had sex with random men for free. But something about this student reminds her of her own past, something she has been keeping hidden for many years.
It has a few interesting moments, and I had a good time with the rape story that was in there. But to no surprise, there is plenty of erotic scenes that are just that - erotica. Boobies all over the place, but no cock or pussy. That's not to say that you'll be working hard trying to get a peek in a few scenes anyway! But there's probably nothing there, other than perhaps a pubic hair. How does it measure as erotica? It's the same stuff you've seen in every other similar movie. It has that quaint Pinku feeling, and if you're a fan of that then this is something you'd enjoy as well.
If you're like me and like these films just "okay", I can at least assure you that there IS plot too. Thin, but it's there. And "Female Teacher: Dirty Afternoon" is far from the most boring because of that. All you need is the attempt at something interesting, and that's what you have here. Someone was most likely paid to make smut, but he had an idea that was slightly more respectable than that and went with it to the extent that he could. And that's "Female Teacher: Dirty Afternoon" for ya!