Rei Rei

in its own genre -- hentai -- this is one of the better ones with respect to the plot and dialogue. Quite witty but not very explicit (still better than most). The goddess character is genuinely hot so you'll be glad that she gets it at the end of the episode 2. (there are episodes 1 & 2 on my tape). Refreshingly, not all the erotic scenes are rape and violence, i was glad to find some depictions of consensual sex, which is somehow so rare within the genre.

As usual, get the subtitled version if you want to be on the safe side censorship-wise: dubbed versions tend to suffer more in the cutting room, although i did not check this one specifically. As for quirky japanese voice-overs mentioned in another comment: i didn't notice that, maybe because I like the conventional cheesiness just as some people like Ed Wood's movies. The female voices are high-pitched but what do you expect?

All in all: not as good as La Blue Girl or other genre favorites but near the top. Would really like to see the further episodes (if they in fact exist).