Descendants of the Sun is a 2016 South Korean television series starring Song Joong-ki, Song Hye-kyo, Jin Goo, and Kim Ji-won. Written by Kim Eun-sook and Kim Won-seok, the series follows the relationship between Yoo Shi-jin, a captain in the South Korean Army's special forces, and Kang Mo-yeon, a surgeon. Their different views on life and duty originally split them up, but the two eventually cross paths again in a disaster-torn fictional country to lead humanitarian efforts. A subplot explores the forbidden romance between Seo Dae-young, a master sergeant, and Yoon Myung-joo, an army doctor.