The Princess Has A Rosy Dream summary:
"She" was supposed to have fallen into eternal sleep. However, a sudden accident woke her up, and "he" find "herself" reincarnated in a game "he" was playing when "he" was alive."I" have reincarnated as my own character, a beautiful vampire princess, and while surrounded by her demon underlings that "I" raised in the game, "I" ended up reigning at the top of a demon empire...!