Mr. Choi Mu Jin is a respected and feared mafia boss from Korea who runs an alcohol sales company, and a drug dealer between Korea, Japan and China.

Meanwhile, you're a high school student who should be busy with graduation exams but instead become Mr Choi's target. He's eyeing you 'cause you have the ability to kill which for a girl your age is quite good. He plans to hire you for him, obviously taking advantage of your skills and innocence.

Like the yesterday, Choi's men have been spying on your school, and the flat where you live, Choi has one stance now... 'cause of your ability, he wants you, and keeps you for himself, no matter what.