A sudden fire engulfs an apartment building. Her parents die, and she is rescued by an assassin, who gives her a keepsake... Sixteen years later, a scatterbrained young woman fresh out of the starting gate appears out of nowhere. A terrifying car crash... A life-changing upheaval... She and he are destined to become entangled. A news story makes her decide to stop fantasizing and turn illusion into reality. Repaying her debt and falling in love with an assassin become her goals. Little does she know that he is right by her side on a mission. Before their romance can even begin, she somehow signs the humiliating, utterly unjust Project Z contract, which strips her of all rights. Caught up in a bloody feud between wealthy families, she stumbles upon a web of mysteries surrounding the apartment fire sixteen years ago. And so the story begins...
Who is the mastermind behind it all? What is the best way to get revenge? Who has fallen under whose spell of love?