Looking for a hentai comic. it was a school theme with a few chapters. there was a female school president or vice president who hated men but ends up getting raped by a junior. she's supposed to deny pleasure but loses and gives in. turned her stockings black with sin or something magic. another one of the chapters one of the girls gets raped by her dad and ends up giving in to the pleasure. I dont remember the whole thing. I think her name was maya/mayu/kagumi/mayumi or something. please let me know the title or a link if anyone has it. thanks!