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So-Ssang has been a court lady for the past 14 years. One day, she learns something about Kwon-Min , who is the concubine of Crown Prince Yi Hyang. Meanwhile, Kwon-Min wants to be the only person loved by Crown Prince Yi Hyang. For that, Kwon-Min needs to oust Crown Prince Yi Hyang’s wife Bong-Sun. So-Ssang is given a mission by Kwon-Min. Her assignment is to oust Bong-Sun. - AsianWiki