Yeon Woo Jin is one lucky man!  First he got to work with the alluring Sunhwa, and now he gets to work with the sexy Hyosung!

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A rep of tvN's 'Introverted Boss' stated, "Hyosung is confirmed for appearance.  She will play new employee Kim Gyo Ri, the secretary to Eun Hwan Ki (Yeon Woo Jin)."

The drama will air in January, 2017!