She has a double life. One of them is like the Korean-American FBI agent Kim Yongsun, who gets punished by her superior and needs to protect the  Korean ambassador and his daughter in the USA. The ambassador's daughter ( Moon Byul-Yi) is a real princess( on her mother's family side) and Yongsun is bored with her mission but she takes the chance to keep investigating the case that really matters to her: a new type of Yakuza that was made in New York. Considering herself smart,