When Hanna was a baby, Hanna's family died from a car accident. After that incident, Hanna was adopted and raised by the government agency. Hanna is now a 21 years old who lived anything but a normal teenage girl should live. Hanna or her code name killer cheeseburger is a crazy tomboyish girl who is a number one CIA and FBI agent. She already graduated Harvard when she was 17 with a 4.0 gpa, fluent in speaking eight different languages, hacking any computer system, using any given weapon even her bare hands, and fighting against 20 to 1 in any form of martial arts. However, two major things Hanna can't do is being a girl and having a relationship with the other sex. What if Hanna gets mission impossible? Changing Mr. Cheeseburgerholic Hanna to become Miss Hanna and getting the number one mafia boss ,Marco Dostoevsky aka Russian Mafia boss, attention to help get information. Will this relationship become a kiss me or kill me relationship?