Two prodigiously talented pianists Hwang Yeji and Shin Yuna are bitter rivals fated to clash in the riveting scene of South Korean classical music. Self-discovery, love, and contempt burn between ivory keys while mania leads to love.

Minatozaki Sana, 31, is just about to embark on her life after a series of unfortunate events, while her two roommates-turned-lovers have already planned their wedding and are on their way to explore a new half of their lives together. Of course, she envies them, but this is a well-deserved life for this young pair.

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,