The heroine's got a fatal disease and she's so desperate to live longer that she decides to start dating vampires in the hope that one of them will fall in love with her and turn her, so she can get better. 
 Josh, the incorrigible flirt, can't seem to stay away from her. He decides to help her win a vampire by giving her dating tips and acting as her body-guard. 
 As expected the two realise their attraction to each other and through twists and turns, finally end up together. Nothing new except for the type of disease the female lead has. And it is not cancer. 
 I do have to say though the disease which the author talk about is something I wouldn't curse on my worst enemy. The author manages to paint a very terrible image of the disease and when I read it up, it is even worse in real life. It definitely made me ache for the heroine's plight at times. Even her pathetic desperation seemed understandable because of it.