SBS "Three Days" Choi Won Young's spy turned out to be Kim Jung Hak.

On the episode of SBS Wednesday/Thursday drama "Three Days" broadcast on April 24th, CEO Kim Do JIn (played by CHoi Won Young) who had planted a spy inside the Blue House revealed its identity.

On this day, Kim Do Jin was arrested as the suspect who had planned an assassination of the president and while researching the phone log, it was revelaed that a secretary inside the Blue House had been collaborating with Kim Do Jin of the Jaeshin Group.

However, in the call log, it was revealed that someone called Kim Do Jin using the internal phone of the bodyguard room and Han Tae Kyung (played by Park Yoo Chun) went into looking Into the CCTV at that time and the activities.

In the end, Han Tae Kyung finds out that someone had not been in their seat at this time and the communications team director was pointed as the prime suspect but this was not the person who had not been in his seat during the meeting but rather the CP Leader Moon Sung Min (played by Kim Jung Hak).

At this, Han Tae Kyung and the Director of Security (played by Ahn Kim Kang) realized this but Do Jin had already been pointed to as a suspect when Moon Sung Min was following President Lee Dong Whee (played by Son Hyun Joo)'s visit to Yang Jin Ri as viewers are interested to see how the plot unfolds.

Meanwhile, on this day, Lee Dong Whee betrays Kim Do Jin.