Kansen: Inyoku no Rensa
Genres: Hentai
Type: OVA, Episodes: 2
Aired: Oct 30, 2009 to Dec 25, 2009
Studio: Suzuki Mirano
Source: Visual novel
Rating: Rx - Hentai
Synopsis:
Extracurricular club activities are the norm for Japanese schools, but an all-night movie event scheduled at school and in August still sounds strange/unusual, especially considering the tiny size of the Movie Research Club (merely six students). And indeed, the two teachers supporting this novelty have hidden motives/objectives, although also the six students themselves chose to participate in the event for personal/secret reasons...

(Source: Forum post by Baldo)