Question: What achievement did My Girlfriend Is an Agent starring Kang Ji-hwan receive?

Context paragraphs:
Incarnation of Money: Incarnation of Money () is a 2013 South Korean television series about greed, ambition, and love.  Starring Kang Ji-hwan, Hwang Jung-eum, Park Sang-min, Choi Yeo-jin, Oh Yoon-ah and Kim Soo-mi, it aired on SBS from February 2 to April 21, 2013 on Saturdays and Sundays at 22:00 for 24 episodes.

90 Days, Time to Love: 90 Days, Time to Love () is a 2006 South Korean television series starring Kang Ji-hwan, Kim Ha-neul, Jung Hye-young and Yoon Hee-seok.  It aired on MBC from November 15, 2006 to January 4, 2007 on Wednesdays and Thursdays at 21:55 for 16 episodes.

Runway Cop: Runway Cop (, literally "Detective Cha") is a 2012 South Korean action comedy film, starring Kang Ji-hwan and Sung Yu-ri and directed by Shin Tae-ra.  It tells the story of an overzealous and overweight detective Cha Cheol-soo who goes undercover as a fashion model in order to solve a case.  It reunites the two leads since the television series "Hong Gil-dong" (2008), and is the second film Kang has worked on with Shin since "My Girlfriend Is an Agent" (2009).  It was released on May 30, 2012 by CJ Entertainment and ran for 110 minutes.

Monster (2016 TV series): Monster () is a 2016 South Korean television series starring Kang Ji-hwan, Sung Yu-ri, Park Ki-woong and Claudia Kim.  It replaced "Glamorous Temptation" and airs on MBC on Mondays and Tuesdays at 09:55pm (KST) from March 28 to September 20, 2016 for 50 episodes.

Kang Ji-hwan: Kang Ji-hwan (born Jo Tae-gyu on March 20, 1977) is a South Korean actor.  He began his career in musical theatre, and has since starred in television dramas such as "Be Strong, Geum-soon! " (2005), "Capital Scandal" (2007), and "Hong Gil-dong" (2008), as well as the films "Rough Cut" (2008) and "My Girlfriend Is an Agent" (2009).

Coffee House (TV series): Coffee House () is a 2010 South Korean television series starring Kang Ji-hwan, Park Si-yeon, Ham Eun-jung, and Jung Woong-in.  It aired on SBS from May 17 to July 27, 2010 on Mondays and Tuesdays at 20:45 for 18 episodes.

My Girlfriend Is an Agent: My Girlfriend Is An Agent (; lit.  "7th Level Civil Servant") is a 2009 South Korean romantic action comedy film directed by Shin Tae-ra and starring Kim Ha-neul and Kang Ji-hwan.  The film had 4,078,293 admissions nationwide and was the 4th most attended film of the year.

Big Man (TV series): Big Man () is a 2014 South Korean television series starring Kang Ji-hwan, Choi Daniel, Lee Da-hee, and Jung So-min.  It aired on KBS2 from April 28 to June 17, 2014 for 16 episodes.

The Relation of Face, Mind and Love: The Relation of Face, Mind and Love () is a 2009 South Korean-Japanese film starring Kang Ji-hwan and Lee Ji-ah.  The romantic comedy film ponders the classic question of how much looks matter when it comes to love, when a good-looking architect finds the perfect woman, except for the fact that she is not very pretty.

Hong Gil-dong (TV series): Hong Gil-dong (쾌도 홍길동 ; lit.  "Fast sword Hong Gil-dong") is a 2008 South Korean television series starring Kang Ji-hwan in the title role, Sung Yu-ri, Jang Keun-suk and Kim Ri-na.  The drama is loosely based on Hong Gil-dong, a fictional book about a Robin Hood during Korea's Joseon Dynasty, but with modern influences and comedic tones.  It aired on KBS2 from January 2 to March 26, 2008 on Wednesdays and Thursdays at 21:55 for 24 episodes.

Supporting paragraphs: Kang Ji-hwan My Girlfriend Is an Agent
Answer: 4th most attended film of the year