Question: who wrote the South Korean romantic comedy film which Han Ye-seul  played leading roles

Context paragraphs:
Birth of a Beauty: Birth of a Beauty () is a 2014 South Korean television series starring Joo Sang-wook, Han Ye-seul, Jung Gyu-woon and Wang Ji-hye.  It aired on SBS from November 1, 2014 to January 11, 2015 for 21 episodes.

Penny Pinchers: Penny Pinchers (; lit.  "Penny-Pinching Romance" or "Saving Up for Romance") is a 2011 South Korean romantic comedy film written and directed Kim Jung-hwan, starring Han Ye-seul and Song Joong-ki.

20th Century Boy and Girl: 20th Century Boy and Girl () is a 2017 South Korean television series starring Han Ye-seul and Kim Ji-suk.  The series will air every Monday and Tuesday at 22:00 (KST) starting October 9, 2017.

Madame Antoine: Madame Antoine () is a South Korean television series starring Sung Joon, Han Ye-seul, and Jeong Jinwoon.

Han Ye-seul: Han Ye-seul (born Leslie Kim on 18 September 1981) is an American-born South Korean actress.  She made her acting debut in the sitcom "Nonstop 4" (2003), and has since played leading roles in television dramas such as "Couple or Trouble" (2006), "Tazza" (2008), "Spy Myung-wol" (2011) and "Birth of a Beauty" (2014), as well as the films "Miss Gold Digger" (2007) and "Penny Pinchers" (2011).

Couple or Trouble: Couple or Trouble (; lit.  Fantasy Couple) is a 2006 South Korean television series loosely based on the 1987 Hollywood film "Overboard".  Starring Han Ye-seul and Oh Ji-ho, it aired on MBC from October 14 to December 3, 2006 on Saturdays and Sundays at 21:40 for 16 episodes.  The romantic comedy series was popular in the ratings, and received recognition at the MBC Drama Awards.

Kim Nam-jin: Kim Nam-jin (born August 1, 1976) is a South Korean actor.  Kim began his entertainment career as a model, having walked the runway for Jang Kwang-hyo's Seoul Fashion Artists Association show in 1996 and appeared in advertisements for casual wear brand Storm in 1997.  He began acting in 2002, and has since played leading roles in the romantic comedy film "Spring Bears Love" (2003), and several television dramas, including "Ice Girl" (2005), "New Wise Mother, Good Wife" (2007), "Fly High" (2007), and "Don't Be Swayed" (2008).

Spy Myung-wol: Spy Myung-wol () is a 2011 South Korean television series starring Han Ye-seul, Eric Mun, and Lee Jin-wook.  It aired on KBS2 from July 11 to September 6, 2011 on Mondays and Tuesdays at 21:55 for 18 episodes.

Tazza (TV series): Tazza () is a 2008 South Korean television series starring Jang Hyuk, Han Ye-seul, Kim Min-joon, Kang Sung-yeon, Son Hyun-joo and Kim Kap-soo.  It aired on SBS from September 16 to November 25, 2008 on Mondays and Tuesdays at 21:55 for 18 episodes.

Will It Snow for Christmas?: Will It Snow for Christmas?  () is a South Korean television melodrama series starring Go Soo, Han Ye-seul, Song Jong-ho, Sunwoo Sun, and Jo Min-su.  It aired on SBS from December 2, 2009 to January 28, 2010 on Wednesdays and Thursdays at 21:55 for 16 episodes.

Supporting paragraphs: Han Ye-seul Penny Pinchers
Answer: Kim Jung-hwan