Dr. Min Ki Seo went to Blue Island to fulfill his deceased girlfriend's last wish to find the single mother and her little girl who was infected by HIV and to apologize to them on her behalf as she had unknowingly given the girl tainted blood when she was being treated at the hospital. Lee Young Shin, the single mom, was having a hard time caring for her grandfather who has Alzeimer's and keeping her daughter's HIV condition a secret while teaching her how to live with it. Min Ki Seo was an arrogant person who looked down on people and in meeting Lee Young Shin who accepted her fate and tried to make the best of it despite all odds, he slowly changed for the better and became a warm and caring person.


Cast
* Jang Hyuk as Min Ki Seo
* Gong Hyo Jin as Lee Young Shin
* Shin Sung Rok as Choi Suk Hyun
* Kim Sung Eun as Suh Eun Hee

Extended Cast
* Seo Shin Ae as Lee Bom / Sam Weol Ee (Young Shin's daughter)
* Shin Goo as Mr. Lee / Lee Byung Gook (Young Shin's grandfather)
* Ryu Seung Soo as Dr. Oh Jong Soo
* Yoo Min Ho as Lee Young Woo
* Kil Young Woo as Min Jun Ho
* Hong Yeo Jin as Kang Hye Jung
* Choi Kang Hee as Cha Ji Min
* Yang Hyun Woo as Choi Young Joo
* Jo Min Ryung as Bak So Ran
* Kim Su Ro cameo as Dr. Oh's brother