Question: What former jeans model starred in the South Korean film, Always?

Context paragraphs:
My Little Brother: My Little Brother (, lit.  "Yes, Family") is a 2017 South Korean film and the directorial debut of Ma Dae-yun.  It is the first South Korean film to be distributed by The Walt Disney Company.

Tell Me Something: Tell Me Something () is a 1999 South Korean Thriller-Horror-Crime film directed by Chang Yoon-hyun.  It was an early South Korean film to find success abroad as part of the Korean Wave, and was selected to appear in the 2001 New York Korean Film Festival.

TB Jeans: TB Jeans (or TBJ) is a domestic Korean clothing manufacturer and jeans label.  Founded in 1994, the label targets their products on younger generation of South Korean as:

Jeong Jae-heon: Jeong Jae-heon (Korean: 정재헌 ; born April 18, 1975) is a South Korean voice actor and actor.  He joined Munhwa Broadcasting Corporation's voice acting division in 2002.  After being a freelancer, Jae-heon made a brief appearance on a 2005 South Korean film "Quiz King", playing his role as a television news reporter.  The voice actor became popular with his dub of Kiyomaro Takamine on "Zatch Bell! ", which has been one of his signature works.  He gained popularity also by replacing Adam Rodriguez on "", and Archie Kao on "".  In late 2011, Jae-heon once was on stage, portraying Lee Mong-ryong in a South Korean charity play "Hyang-dan, Fly".  He has recently been known for his voicing Shota Kazehaya on the Korean dub of a Japanese television animation series "From Me to You", which made many fans of Jae-heon call him 정재하야 (Jeong-jae-ha-ya, a compound word formed from "Jeong Jae"-heon and Kaze"haya").

No Regret (film): No Regret () is a 2006 South Korean film and the feature film directorial debut of Leesong Hee-il, based on his earlier short "Good Romance".  "No Regret" is also regarded as "the first 'real' Korean gay feature", (although earlier South Korean films, such as "Road Movie", released in 2002, have dealt with gay relationships), and is also the first South Korean feature to be directed by an openly gay Korean filmmaker.

So Ji-sub: So Ji-sub (born November 4, 1977) is a South Korean actor.  After making his entertainment debut as a jeans model, he became known for his leading roles in the television series "I'm Sorry, I Love You" (2004), "Cain and Abel" (2009), "Phantom" (2012) and "Master's Sun" (2013) as well as the film "Rough Cut" (2008).  So has also released several hip-hop EPs.

Seopyeonje: Seopyeonje () is a 1993 South Korean musical drama film directed by Im Kwon-taek.  Its story tells of a family of traditional Korean pansori singers trying to make a living in the modern world.  The film was originally expected to only draw limited interest, and was released on only one screen in Seoul.  At the height of its popularity, it was shown on only three screens at once in the entire city of over 10 million.  Nevertheless, it ended up breaking box-office records and became the first Korean film to draw over a million viewers in Seoul alone.  When it was released, "Sopyonje"'s success also increased interest in pansori among modern audiences.  The film was acclaimed critically, both in South Korea and abroad, getting screened in Cannes Film Festival and winning six Grand Bell Awards and six Korean Film Critics' Awards.

Korean War POWs detained in North Korea: Tens of thousands of South Korean soldiers were captured by the North Korean and Chinese forces during the Korean War (1950–53) but were not returned during the prisoner exchanges under the 1953 .  Most are presumed dead, but the South Korean government estimates some 560 South Korean prisoners of war still survive in North Korea.  The issue of unaccounted South Korean POWs from the Korean War has been in dispute since the Armistice in 1953.  North Korea continues to deny it holds these South Korean POWs.  Interest in this issue has been renewed since 1994, when Lt. Cho Chang-ho, a former South Korean soldier presumed to have been killed in the war, escaped from North Korea.  As of 2008, 79 former South Korean soldiers have escaped from North Korea.

Green Fish: Green Fish () is a 1997 South Korean film.  It was the first feature-length film directed by Lee Chang-dong, who also co-wrote the screenplay.  Lee had previously been known as a novelist and high school teacher.  The film stars Han Suk-kyu in one of his first major film roles.  It was the eighth highest-attended South Korean film of 1997.

Always (2011 film): Always (; lit.  Only You) is a South Korean film directed by Song Il-gon.  Starring So Ji-sub and Han Hyo-joo in the lead roles, it is about a romance between an ex-boxer who has closed his heart to the world and a telemarketer who remains spirited despite slowly going blind.

Supporting paragraphs: Always (2011 film) So Ji-sub
Answer: So Ji-sub