In "Bluebird House" Kyung Soo Jin's feelings were exposed that she liked Lee Joon Hyku after Lee Sang Yeop kept prodding her.

On the episode of KBS 2TV weekend drama "Bluebird House" (script Park Pil Joo, script Ji Byung Hyun), Jang Hyun Do (played by Lee Sang Yeop) was under the misunderstanding that Kang Young Joo (played by Kyung Soo Jin) liked him. At this, she said, "The person I have a crush on is Ji Wan (played by Lee Joon Hyuk).

Young Joo had been in Dae Gu to surprise Eun Soo (played by Chae Soo Bin) and was shocked to see that Hyun Do was there before her. He didn't like the fact that she was trying to get between him and Eun Soo. This caused even more misunderstandings. He had thought that the person that Youn Joo had a crush on was him.

Afterwards, he proded her and Young Joo broke down. She said that it was Ji Wan that she had been crushing on.

With this, Eun Soo was very surprised but Young Joo threatened Hyun Do. She was upset and started saying, "You try to say a single word to Ji Wan and guess what will happen."