Three siblings from the Black Dragon Family, the most famous and feared TRIAD in Shanghai fall in love with three Koreans. The first son, Ju Hwamyeong, a cruel and mysteriously calm man, falls in love with an art gallery employee. The second son, Ju Amyeong, who always showed off his wealth to others, is suddenly fascinated by the kindness of a poor music student. Meanwhile, the last daughter, Ju Somyeong, a woman who enjoys spending her riches, falls in love with her own bodyguard. Will their love stories go as planned?