This Is An Old Novel
Dawn Motoki was simply an otaku who enjoyed playing video games, watching television, and more. But it isn't until her fun times get cut short when she gets stabbed multiple times to where she dies. Months go by, and a boy names Kosuda Akatsuki, has always wanted to have his own girlfriend.
And as fate would seem, he ends up finding a naked girl in his bedroom, who's Dawn herself, but as a dead zombie! And Kosuda soon gets involved with Dawn in a world full of fairies, vampires, and other paranormal creatures, all in order to keep Dawn alive.