Hi I'm looking for a doujin that might be removed since I can't find it anymore, it was very popular back then and I even remember it being on the front pages for a while, i remember it being a harem doujin set in a school where the male student protagonist found out that the teachers were having sex with the female students, and then he started going on a rampage having sex with every single girl in school, I remember one of the scenes showing a line of girls wanting to fuck him and then it focused on a tanned girl. I also remembered that there was impregnation even though I don't think it went in depth with that aspect of it. I would really appreciate any answers, thank you very much in advance!