In "Bluebird House" Lee Sang Yeop started to get very suspicious of Chun Ho Jin.
On the episode of KBS drama "Bluebird House" broadcast on June 28th, Hyun Do (played by Lee Sang Yeop) was in the greatest shock after seeing Sun Hee (played by Choi Myung Gil)'s huge declaration.
On this day, Sun Hee went to the company lobby. To Tae Soo (played by Chun Ho Jin), she did not give him a moment to explain. She simply said, "Why did you do this? Why did you betray Sang Joon? How could you be so intentional and con him? You're not even human." Hearing all of this Tae Soo didn't take it easily. He said, "This could be the last time that I will go easy on you." Hearing this threat, Sun Hee slapped him across the face. She said, "You should've been apologizing instead of lying. Now I can't even forgive you." With that, she made a huge declaration.
The problem was that Hyun Do was looking at the two's behavior. Hyun Do followed up with Sun Hee, thinking that this was because of Eun Soo (played by Chae Soo Bin). Sun Hee kept saying no but he said, "But then why are you so upset?"