the synopsis is something like this : a boy come to hospital and he saw a nurse. they fucked and the nurse tell this boy about ghost stories that in this hospital some years ago some nurse is killed by patient.

at the end, the nurse realized the boy is a killer of nurse some years ago but the boy knew that this nurse already suspect him and then kill this nurse.

do you know the author or manga that i talked about? i read this around year ago on random doujin that my friend give to me(yes idk this is hentai first, but the story was good so i make a choice to read this until its done)