After a traffic accident, when she opens her eyes, she finds a handsome young man doing a kabedon in front of her. At that moment, she realizes she has become Olivia Custer, the villainess from a manga she once read.

Five years earlier, Olivia Custer had secretly harbored feelings for the cold but beautiful Inslette at the Royal Academy, but she was never able to confess them. In order to get closer to him, she came up with the idea of befriending his companions.

However, rumors soon spread at school that she was man-crazy. On top of that, she discovered that she was not truly the daughter of the count’s family, but had been switched at birth. Worse still, she learned she was afflicted with an incurable disease and would not live long. In desperation, she got Inslette drunk and forced him to become hers…