This is a page from some doujin or otherwise eromanga that I found on 4chan a while ago:I've been trying to figure out where it came from for a couple weeks now, without luck ... I've been posting a thread in /r/ on 4chan (because thats where I found the picture in the first place) almost every day asking for any clue at all about its origin but so far, nothing. Maybe someone on here knows something ... ?