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Her agency Key East Entertainment confirmed, "So Yi Hyun will play the role of Lee Cha Young in 'Three Days'." Lee Cha Young is known as the brain of the presidential security service that the drama's plot centers on. So Yi Hyun will join JYJ's Yoochun, Park Ha Sun, Son Hyun Joo, Yoon Je Moon, and Jang Hyun Sung in the production.

'Three Days' is directed by 'Deep-Rooted Tree's Shin Kyung Soo and written by 'Sign' and 'Phantom's Kim Eun Hee. The drama will center on the bodyguards' race to find the President (Son Hyun Joo) when he goes missing after shots are fired. Yoochun will play the role of elite bodyguard Han Tae Kyung, while Park Ha Sun will play the role of policewoman Yoon Bo Won. 

Stay tuned for more information on 'Three Days', which is currently scheduled for February of next year.