Coffee shop owner in the day.

Criminal at night. 

When she returns to Korea from Hong Kong, a gang leader has his eyes set on her. He watches her every move, but he didn't realize that she too was a gang leader.

In Hong Kong, she was a member of a triad for 10 years and got the approval from the leader to leave to start her own gang. She still had strong ties with her former leader and helped him whenever he needed it. In order to fit into society, she opened up a coffee shop in Seoul. Kim Jiwoo runs the coffee shop and her gang, making her busy 24/7. 

When she meets a powerful gang leader, her life begins to change as they fall in love with each other. She knows who he really is, but he has no clue who she is. She tries her best to maintain the relationship, but when he finds out who she really is and what she is planning, will he trust her or will he go against her?