Agent F05(Krystal Jung) receives a mission to bring back the infamous killer, Kim Kibum. Her job is to make him fall in love with her any way she could. Knowing the man is known for his cleverness and charming looks, she does her best not to get caught. But it's really hard not to get caught in Kibum's seductive charm...........

Characters:

Krystal Jung: Agent F05, the top agent in their company. Never failed her missions. She is very well known in their industry. Being beautiful, she has successfully captured all the killers she was told to bring back. This mission is her toughest yet, she must make sure the man falls for her before she falls for him....

Kim Kibum: To the world on the outside, his name is Kim Key,  but to the village he grew up in, he is the pure and innocent Kibum. He escaped back to his village and pretended to  be pianist in order to hide his identity.Knows Krystal's plan and decides to play along with her until he found out he has fallen for her trap himself....

Cameo appearances:

Victoria Song: The Owner of Krystal's company, known as "V". Sends Krystal to hunt down the killer.

Hwang Tiffany: Key's suitor, an ignorant women who ends up tragically.