Never read this before, but the summary sounds kinda alike...? I tried to start it to see if it fits, and the guy gets his neck bitten...
http://www.mangago.me/read-manga/ai_to_yokubou_wa_gakuen_de/
^ sex school yep, i think that's that. multiple couples and it's been long since i've read it but i think the scene is from the the guy that is paired with the s &m sempai. or the normal av guy.. gosh i can't remember there's so many couples
Late response yup... But thanks so much! You found it
Hey guys I need help looking for a mega... The setting is a sex school and trains s and m... The characters start off in a room and its like occupied... They take exams by having evaluations on their sex... The character doesn't get full points but says he has to go to that school because it's cheaper... Plus something about a rape lecture and the guy next to him bit his neck... Please help me!!! Many thanks!!!