PureMail is a 2 episode Hentail OVA from 2001 that is an adaptation of a 2000 Bishoujo Game/Visual Novel made by Overflow the same studio that made School Days and its “sequels”.
It is also in the same universe, the character named Miki Sawagana is the older sister of Taisuke Sawagana. That’s the familial connection that is made obvious by surname, but I'll get to the matter of Overflow Universe world building later.
First, what do I think of this OVA as a stand alone work of art?
The thing about Erotic Art that wants to be more than just Porn is that I want it to be more than just a Good Story with good fappable Sex Scenes, they need to inform each other, to be firmly integrated. There are lots of mainstream movies where it’s part of the Plot that sex happens, but it doesn’t need to happen fully on screen. In Erotic Art it has to be more than just that Sex happens but the specifics of the Sex have to matter, some of the character development has to be tied to how they do or do not enjoy it.
And it’s that test which PureMail fails. I find the story and characters very interesting and I found at least some of the H scenes Fappable. But those H Scenes also feel like they’re interrupting the story rather than enhancing it. There are times when the conversation happening after the sex directly picks up where they left off before, but because it’s separated by 5 minutes of mindless screwing the viewer loses the train of the conversation.
I’ve watched two versions of PureMail. I watched its English Dub unedited and uncensored on a Hentail website I won’t name here. And I watched an English Subbed version on YouTube that has the explicit parts edited out. And it demonstrates my above criticism that the edited version actually felt like it had better pacing. It removed vestigial organs while in ideal erotic art removing the sex scenes would be removing the heart and soul.
Unfortunately that edited version is no longer on YouTube, I neglected to download it and I don’t remember the name of the Channel, so it looks like it's probably now Lost Media that only I care about.
School Days and some of its “sequels” are known for not being presented how most Visual Novels usually are but being basically interactive Anime. PureMail as far as I can tell wasn’t like that, it was a more normal Visual Novel. I bring that subject up here because it means the actual source material for the Days series can be compared to PureMail’s adaptation at being an Erotic Anime. Now I currently have not seen all the Erotic content that School Days HQ and Shiny Days have to offer, but I’ve seen some that definitely do succeed where the PureMail OVAs failed. Even if it would be hard to argue anything is specifically absolutely necessary; they still convey things about the characters which those so easy to edit out PureMail scenes did not.
As the title of PureMail implies it involves some characters communicating via Email, so it’s perhaps one of the earliest Hentail to feature the Internet as a plot point.
One thing that I feel vindicates
my vocal interpretation that Otome raped Makoto in episode 9 of the School Days Anime is that that Women Raping men is a theme in these prior overflow Overflow works. The MC of
Large PonPon was abused by at least 2 older women. And in
PureMail at least in the OVA version Kei is Blackmailed and Raped by Yumi Matou, and it’s framed as traumatizing not
comedic or harmless.
So yeah there is good material here, if that edited version were the official version I’d probably give it a higher rating. But I also imagine like many VNs adapted with so little runtime the storytelling was also hurt by being condensed and trying to make everything fit one timeline.
Now let’s return to world building. The Overflow Universe Family Tree is a bit of a Meme to those of us who know it exists. But in a way
PureMail’s connections to all that shows how perhaps not well thought out it actually is. Again I like most English speakers have no first hand information about these games, I’m mostly trying to draw conclusions from the Overflow Fandom Wiki (I wish I didn't have
to use Fandom but no one’s cloned this content on an alternative Wiki network.)
These PureMail OVAs are technically the only onscreen Anime appearance of Tomaru Sawagoe. In the games his onscreen appearances are all in the Radish Trilogy, only they have character designs for him, and even the first of them came out after these OVAs. Going off the OVAs Kei’s father isn’t mentioned by name and there isn’t even any hint at that father not being who he gets the surname Ogata from. The OVAs felt they needed to actually animate a flashback and in it the character design of Kei’s father has a generic White Trash Wife Beater type look and seems to be “Lower Class”. Tomaru in the Radish games has a more distinct and flamboyant style and is very wealthy owning the titular restaurant chain and a hospital.
Basically Kei’s father being identified with the villain of the Radish series feels like a Retcon.
Online discussion of all these Overflow games focus on how they relate to School Days because only it ever became truly infamous in the general Anime community, especially in the Anglosphere. So Tomaru Sawagoe is defined first and foremost as Makoto Itou’s father and all the games set before School Days are talked about as if they are prequels to School Days even though they were all made before School Days.
Snow Radish Vacation was made as a prequel, but to Large PonPon, Overflow’s first game. The Inou and Sawagoe surnames originated there and then become the focus of Snow Radish Vacation; no surnames you recognize from the core cast of School Days are in either of those games.
Large PonPon, PureMail and School Days all seem like they are set in the then present of when they were made (1999, 2000 and 2005) like the average Visual Novel. It’s only the Radish Vacation games that have to be period pieces for the Timeline to make sense. But I have no way of knowing how good they are at feeling like period pieces, or if they even bothered to try.
Summer Radish Vacation was a sequel to Snow Radish Vacation, but Summer Radish Vacation 2 is in some ways more of a spin off then a sequel. School Days I think was originally made without how it connects to the other games being all that set in stone. In fact I’ve learned there was originally a family tree chart published by Overflow which made Sekai and Setsuna children of Tomaru rather than of Shun.
Summer Days' relationship to School Days is more of a completely alternate timeline rather than a Sequel or a Prequel. But thanks to Shun’s role it’s actually more of a direct sequel to Summer Radish Vacation then Summer Radish Vacation 2 is.
Point is, the core world building starts with Large PonPon then goes through the Radish Games to end with the Days series. PureMail and other Overflow games mentioned on the genealogy are largely afterthoughts. The genealogy makes Ayumu the father of multiple PureMail characters and I really doubt the game was originally written with that in mind.