Song Ji-na

A Fantasy epic about a 21st-century plastic surgeon who time travels to the Goryeo era and falls for royal bodyguard Choe Yeong, the series initially cast Lee Joon-gi and Kim Hee-sun as the protagonists.

But Lee was drafted for mandatory military service, and he was replaced by Kang Ji-hwan, who then became embroiled in a legal dispute with his agency, and the role eventually went to Lee Min-ho.

Over three years of stalled pre-production, the story itself underwent major changes, becoming less dark and less fantastical.

Song Ji-na (born September 12, 1959) is a South Korean screenwriter.

Adapted from a manhwa by Huh Young-man, the eight-episode series was set in the 1970s and starred Jung Dong-hwan and Kang Moon-young.

Set during the politically tumultuous period of 1970s through 1980s Korea (including a reenactment of the Gwangju Massacre interspersed with archival video footage), Sandglass (1995) recorded a peak rating of 64.5%, the third highest of all time, and launched Choi Min-soo, Go Hyun-jung, Park Sang-won and Lee Jung-jae into stardom.

Eyes of Dawn and Sandglass were so phenomenally popular that while they were airing, streets were reportedly deserted because people were in their homes watching.

Critics and viewers praised the dramas' outstanding production values (editing, cinematography, acting, writing), and for their realistic portrayal of individual lives amidst dark political times.

They are currently still considered iconic masterpieces of Korean TV.

Though Song and Kim would collaborate again, their subsequent series would not reach the same heights of success.

To celebrate MBC's 30th anniversary, Song and Kim adapted Kim Seong-jong's 10-volume novel (published in 1981), embarking on a drama that would make Korean television history.

She made her television writing debut in 1982 on the children's show Tiger Teacher, while writing the scripts of a social documentary TV series.

She then met TV director Kim Jong-hak, with whom she would famously collaborate on eight television dramas.

Their first work together was The Last Station (1987), one of MBC's early experiments with the miniseries format.

Song and Kim's second drama was Teacher, Teacher, Our Teacher (1988).

Their third collaboration, Human Market (1988) was based on Kim Hong-shin's bestselling novel and became one of the classics of 1980s Korean television (SBS would later remake it in 2004).

Eyes of Dawn began filming in advance in June 1990, with overseas shoots in the Philippines and Harbin (despite the fact that Korea and China hadn't yet established diplomatic relations), a budget of (five- to ten-times the cost of an average drama at the time), over 270 actors and 21,000 extras.

Starring Choi Jae-sung, Park Sang-won and Chae Shi-ra, the series spanned Korea's painful modern history from the Japanese colonial period to the Korean War.

She is best known for writing Eyes of Dawn (1991) and Sandglass (1995), two of the most influential and highly rated Korean dramas of all time.

Song Ji-na began her career as a writer for the radio program Starry Night on MBC Radio.

When it aired from 1991 to 1992, it reached a peak viewership rating of 58.4%.

In 1992, Song and Kim co-founded the production company Jcom (predecessor to Kim Jong-hak Production, which was founded by Kim in 1999).

Three years later, they moved to then-newly launched broadcasting station SBS, and their next drama would be equally popular and critically acclaimed.

Song was also the screenwriter for two films -- 3pm Paradise (1997) directed by Kwak Kyung-taek, and the melodrama Love (1999) starring Jung Woo-sung and Ko So-young.

Later that year, she returned to television and co-wrote Love Story, a 16-episode anthology drama that aired from December 1999 to January 2000 featuring eight different stories with two episodes per story.

Among its star-studded cast were Lee Byung-hun, Lee Seung-yeon, Kim Sun-a, Choi Ji-woo, Song Seung-heon, Cha Seung-won, Lee Na-young, Lee Beom-soo, Song Yun-ah, Yoo Ji-tae, Lee Mi-yeon, Lee Geung-young, Bae Doona, So Ji-sub, Kim Hyun-joo, and Kim Tae-woo.

For her next project, Song returned to the genre of campus drama; she had previously written KAIST in 1999, about students attending the titular premier science university, and the series boosted the careers of young stars such as Chae Rim.

In What's Up, an ensemble cast composed of Im Joo-hwan, Daesung, Lim Ju-eun, Oh Man-seok, Jang Hee-jin, Kim Ji-won, Lee Soo-hyuk and Jo Jung-suk portray students and teachers of a university's musical theatre department.

Song was highly involved in the production process, including the open auditions for the supporting roles through micro-blogging service me2day.

Her 2002 Joseon period drama Daemang (also known as Great Ambition) was again directed by Kim Jong-hak and starred Jang Hyuk and Lee Yo-won.

This was followed in 2003 by Rosemary, which featured Yoo Ho-jeong, Kim Seung-woo, Bae Doona and Yeon Jung-hoon in a story about a terminally ill wife.

Song then moved to New Zealand and went on hiatus for four years.

She made her comeback in 2007 with another Kim Jong-hak project, the big-budget historical-Fantasy-epic The Legend (also known as Taewangsasingi, or "The Four Guardian Gods of the King").

Highly anticipated for being Korean Wave superstar Bae Yong-joon's first TV series in five years, the series also starred Lee Ji-ah, Moon So-ri, Choi Min-soo, Park Sang-won and Lee Phillip.

But despite excellent ratings (its peak was 35.7%) and solid overseas sales, The Legend wasn't able to recoup its huge budget, so it became (in terms of profit) the biggest flop in Korean drama history.

Her 2009 action thriller Story of a Man (also known as The Slingshot) starred Park Yong-ha, Kim Kang-woo and Park Si-yeon, and focused on a man forming a "dream team" to face off against a sociopathic businessman and the money-driven world he represents.

Despite low ratings in the single digits (it shared the same timeslot as hit period drama Queen Seondeok), The Slingshot won Best Drama Series at the 2009 Seoul International Drama Awards.

The drama was filmed in its entirety in 2010, but later encountered problems finding a timeslot among the three major broadcast networks.

It eventually aired a year later on cable channel MBN.

Faith (also known as The Great Doctor, 2012) was Song's eighth and last collaboration with Kim Jong-hak.