"When a Man Falls in Love" The identity of Yeon Woo Jin's biological father has been revealed.

May 29, the 17th episode of the MBC drama "When a Man Falls in Love" featured Lee Jae Hee's (Yeon Woo Jin) secret of birth being revealed.

Han Tae Sang stares at Lee Chang Hee (Kim Sung Oh) who is in the hospital, brain dead. Han Tae Sang remembers that Lee Chang Hee had said, "If something happens, check grandmother's photo frame. I left a letter inside."

Han Tae Sang finds the letter which reads, "I changed Jae Hee's life. Jae Hee is not my real brother."

The letter also reads, "When I was 6-years-old my mother passed away. Not too long after, my grandmother brought home a newborn baby. Grandmother used to work as a housekeeper for a very wealthy family. The daughter of the household fell in love with a poor man from Hong Kong and became pregnant when she was already engaged to a different man."

And, "I thought that my mom in heaven brought him to me. I found out about everything when grandmother died. The wealthy family had given grandmother a great amount of money to send the child to an orphanage. Time passed by and grandmother passed away. When I was 20-years-old, a man came to me."

That man had been Jang Ji Myung (Nam Kyung Eup). Jang Ji Myung had told Lee Chang Hee that he wants to meet his grandmother and said, "Which orphanage was the baby taken to? I am the father of the baby." Lee Chang Hee had wrote, "I couldn't believe all the things he was saying and I didn't want to let Jae Hee go either." So Lee Chang Hee just told the man, "She took him to some orphanage. I don't know. Grandmother was the only one who knew."

Lee Chang Hee wrote, "For Jae Hee's sake, he should have been sent to his real father so that he didn't have to live with a stupid and poor older brother. However, I didn't' want to be left alone without Jae Hee. Instead, I wanted to help Jae Hee become the most admired man and tell him the truth one day so that he could be reunited with his real father with pride."

Lee Chang Hee concluded, "Please forgive our Jae Hee for loving the same woman you love."