On the 15th episode of KBS 2TV "Bluebird House" (script Choi Hyun Kyung, director Ji Byung Hyun) broadcast on Apr. 11th, Han Eun Soo (played by Chae Soo Bin) found out about the identity of Lee Sang Yeop.
On this episode, Jang Tae Soo kept on torturing Han Eun Soo (played by Chae Soo Bin) caught on that Jang Hyun Do (played by Lee Sang Yeop) was the heir of a conglomerate. Jang Hyun Do had called Han Eun Soo as soon as he got his paycheck. At the same time, Han Eun Soo was going to Jang Hyun Do's house with her grandmother and aunt.
Knowing this, Jang Hyun Do was in shock remembering that Jung Soo Kyung (played by Lee Hye Sook) his mother had put up pictures of the girl that she wanted to set him up with. Until now, Jang Hyun Do had hid the fact that he was Jung Soo Kyung's son.
Jang Hyun Do hopped into a taxi and went home. Jang Hyun Do called his housekeeper and said please get rid of all the pictures of the girl. Nonetheless, Han Eun Soo not only saw the pictures but saw that Jang Hyun Do was Jung Soo Kyung's son, shocking her.
