Single Dad in Love

Single Dad in Love is a 2008 South Korean television series starring Oh Ji-ho, Heo Yi-jae and Kang Sung-yeon. It aired on KBS2 from February 18 to April 8, 2008 on Mondays and Tuesdays at 21:55 for 16 episodes.

Plot
Kang Poong-ho is a pest exterminator by day and a K-1/mixed martial arts fighter by night. He is a single father raising his 7-year-old son Kang San after the boy's mother, his first love Yoon So-yi, abandoned them to pursue her ambition of becoming a pianist. Despite life's trials, Poong-ho never loses his optimism and sense of humor.

He meets and falls in love with Jeon Ha-ri, a bright and bubbly medical student from a wealthy family. An obstacle to their romance arises when they learn that Ha-ri's soon-to-be stepmother is none other So-yi and that it was Ha-ri's surgeon father Jeon Ki-suk who sponsored her piano studies abroad. As So-yi re-enters their lives, San is diagnosed with a brain tumor. Poong-ho is willing to go to any lengths to save his beloved son.

Main characters

 * Oh Ji-ho as Kang Poong-ho
 * Heo Yi-jae as Jeon Ha-ri
 * Kang Sung-yeon as Yoon So-yi
 * Park Chan-hwan as Jeon Ki-suk
 * Ahn Do-gyu as Kang San

Supporting characters

 * Im Joo-hwan as Min Hyun-ki
 * Shindong as Oh Chil-goo
 * Kim Ha-eun as Jo Kyung-ah, Ha-ri's friend
 * Lee Doo-il as Goo Sang-tae, Poong-ho's boxing coach
 * Min Wook 민욱 as Min Joon-ho, principal
 * Kim Ja-ok as Jung Eun-ji, Hyun-ki' mother
 * Jang Ji-min as Park Min-joo
 * Jung Jae-soon as Lee Wal-soon, Min-joo's grandmother