Kim Jimin is a final year medical student. A few months later, she'll be able to get her bachelor degree and start on her residency training.

Lee Taeyong was born into an assassin family, where no love was ever present in his life. Feelings were taught to be a weakness, so he was taught to be emotionless. 

Two different people who has the unlikely chance of crossing each other, actually has. 

Finding him lying in a pool of blood in an alley, Kim Jimin decides to bring that assassin home. 

A story of a relationship between love and hate.

A story of a relationship between devotion and betrayal. 

A story of a battlefield of emotions.

A story of Taeyong and Jimin. 

1995: “Make it look pretty, but train it to kill.”

2016: “We don’t need to control him, we need to unleash him.”