Knowing the hardship of being an orphan, Jung Da So endures the stigma of being an unwed mother in raising the child of a deceased friend as her own so that the child will never suffer from being an orphan. Ha Tae Woong, who was raised by his uncle after his mother died, has never met his father. Through a twist of fate, Da So meets Tae Woong, Kang Sae Hyun and Ho Ji Soo, and sees both the best and worst in human nature.


Cast
    * Song Hye Kyo as Jung Da So
    * Kim Min Jong as Ha Tae Wong
    * Kim Min as Supervisor Ho Ji Soo
    * Yoon Da Hoon as Kang Sae Hyun
    * Jang Hang Sun as Ha Duk Ho (Tae Wong's Uncle)
    * Kim Bo Sung (김보성) as Soon Dong (Tae Wong's Friend)
    * Lee Soon Jae as Chairman Kang Doo Sik
    * Jung Eo Jin as Da So's Daughter
    * Choi Jae Won as Mr. Na (Da So's coworker)
    * Jang Hang Sun
    * Kim Seung Wook
    * Kim Hyung Bum
    * Lee Mi Young
    * Eun Seo Woo (은서우)
    * Park Joo Mi
    * Seo Bum Yul (서범열)
    * Lee Do Ryun (이도련)
    * Lee Hee Do
    * Jo Mi Ryung
    * Song Geum Sik (송금식)