"Hotel King" Lee Da Hae learned that Lee Dong Wook is Lee Joong Goo's real birth son.
On the 17th episode of MBC weekend drama "Hotel King" broadcast on June 7th, CL Hotel's Vice Director Lee Joong Goo (played by Lee Duk Wha) was arrested and called Amone (played by Lee Da Hae) and told her the shocking truth.
Lee Joong Goo said that the key chair director Cha Jae Wan (played by Lee Dong Wook) was his true son. Mone didn't believe so Lee Joong Goo needed to conduct a DNA test.
Mone was shocked to find that this was the truth. He said in disbelief, "Cha Jae Wan must've wanted to die. That someone like you is his birth father."
However, Lee Joong Goo said, "No. Men are different" and gave a questionable USB. This is something that CEO Ah Sung Won had hid inside the garden boat. Lee Joong Goo threatened Mone saying, "If this is unlocked, then Jae Wan would probably only get released at my age."
More than this he said, "You knew what Jae Wan did to his father and you were so crazy in love that you pretended not to know. However, our Jae Wan ran to me as soon as he found out. So that's why they say sons are better" he said to instigate frustration in Mone.
In the end, Mone misunderstood thinking that Cha Jae Wan used him. Mone said to Lee Joong Goo, "Both of you just disappear" and was angered.