Jang Geun Suk found out the true identity of Lee Jang Woo.
On the 13th episode of KBS 2TV Wednesday/Thursday drama "Pretty Man" (Script Yoo Young Ah, director Lee Jae Sang, Jung Jung Wha, Shin Yong Whee) broadcast on January 1st, Dok Ko Ma Tae (played by Jang Geun Suk) learned of the true identity of David Choi (played by Lee Jang Woo).
On this day, when Na Hong Ran (played by Kim Bo Yeon) called first about a humorous proposal, he denied it at once.
Na Hong Ran met Dok Ko Ma Tae and revealed that David Choi was the hidden son of Park Ki Suk (played by Dok Ko Young Jae). Dok Ko Ma Tae was shocked that David Choi, who liked Kim Bo Tong (played by IU) was the same as him as the second son of MG Group.