"Three Days" Choi Won Young threatened Son Hyun Joo.
On the 11th episode of SBS Wednesday/Thursday drama "Three Days" broadcast on April 9th, "Secret Document 98" was at risk of getting exposed and Kim Do Jin (played by Choi Won Young) went to Lee Dong Whee (played by Son Hyun Joo).
On this day, Kim So Jin said, "Congratulations. You have a strong card to block me. If you didn't meet me back then and released a secret document, you would lose your presidency and would've lost everything. I took a hit there. Thanks to you, all my plans went awry."
Moreover he said, "But now that I think about it, there is something that I still have. When the Yang Jinri incident happened, there were 24 deaths and 19 injuries. How many people do you think there are now? A long time ago, that's what they told me. When the president gets attacked, when an industry is exploded, when there's terrorism in the middle of the capital. Aren't you curious how people will die out and where and when this will happen" as he put pressure on him non-verbally.
