This doujin features female Shinji, Shinji-ko, in a school setting inspired by the early draft of episode 24 (http://the-liliquarium.livejournal.com/1237.html). Scanned by anonymous on http://www.rei-ayanami.com/male/ all credits go to him/her.
@Tofu delivery: I'm not sure about which doujin you're referring to, I'll try to search for it later, but there are only three other NakamuraQ's doujin here on e-hentai and they don't feature harem, Royal Straight Platonic Love features Shinji-ko too though. @ TheFlame234:for now there's none, it's just been scanned a pair of days ago anyway.