Julia is a natural at her trade. She made herself a promise very early on that she would never be helpless again. She somehow gets herself into many assassination jobs and by the time she's nineteen, she's known all around the world as the best of the best. Everyone wants her, but she finds herself facing a very intriguing offer from the man who started her out on her path and she just can't turn it up. She retires just before her twentieth birthday and takes him up on his offer. Ace doesn't know any of this and thinks that she's simply another pretty face that his father is trying to set up with him. He's so sure that he can hate her but he finds himself disturbed by how hard it is. He finds her charm and intellect quite unnerving but quickly finds his walls crumbling around him. What will happen once they realize just how hard it is to stay away from each other?