In "Bluebird House" Lee Sang Yeop made a confession to Chae Soo Bin.
On the 16th episode of KBS 2TV "Bluebird House" (script Choi Hyun Kyung, director Ji Byung Hyun) broadcast on Apr. 12th, Jang Hyun Do (played by Lee Sang Yeop) sat in the same bus as Han Eun Soo (played by Chae Soo Bin). With that, he started to confess his feelings.
On this day, Han Eun Soo asked, "Why didn't you tell me anything? Did you lie on purpose?" She started a conflict with him. Before this, Jang Hyun Do had been caught by Han Eun Soo lying about not being the heir to a conglomerate.
Han Eun Soo said, "Well we're not something anyway. I'm not a girl that you swap month after month dating. We're just two people that know each other."
Jang Hyun Do said, "I don't go to see the siblings of my friends and I don't even consider those people women. I'm not going to put so much effort into people like that. If a girl doesn't like me, that's all."
In the end, Jang Hyun Do said, "Let's just meet each other until we find out what we are" and confessed his feelings.