Marinette is a twenty year old woman who lives by herself, every man dreams to be with her but she refused. Luka, a man with evil intentions, plans to kill her because he was rejected too many times. Until she met Cat Noir, he was something that made her heart rate increase since she knows his secret... He's a dangerous vampire. Cat Noir, a criminal who falls in love with Marinette, he makes her chose between living with him or marrying him. He chose to also become her bodyguard for life, Marinette decided against it but he ignores her protests. Will she keep his secret or will she be forced to take his last name? Will Luka manage to kill Marinette and get away with it? Is there more to this "criminal" than she thought?