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But due to the constant demands of their jobs, their meetings are often interrupted. One day, Si-Jin has to leave for a peacekeeping mission in Uruk. Mo-Yeon gradually starts reciprocating his feelings and the two start dating. But the latter proves himself to be a soldier with the help of his army doctor friend Myeong-Joo. Mo-Yeon, however, thinks that Shi-Jin is part of the thief’s gang. Mo-Yeon in the emergency room and Si-Jin instantly falls for her. When Dae-Young realizes that his cellphone stayed with the thief, he goes back to retrieve it along with Si-Jin. However, since the thief gets injured during the chase, he is admitted in a hospital. The story of ‘Descendants of the Sun’ begins with Si-Jin, captain of the Alpha Team special forces, apprehending a motorcycle thief with the help of Sergeant Major Dae-Young. Descendants of the Sun Plot: What is it about? After she lands for her first assignment, she meets Dae-young and falls in love with him. She is a graduate from the Korea Military Academy and interned at Haesung Hospital. She is an army doctor and Lieutenant General Yoon’s daughter. Kim Ji-won (‘ Arthdal Chronicles‘) plays First Lieutenant Yoon Myung-Ju. He has vast experience and this often comes in handy when the team faces any crisis. However, he is extremely strict when it comes to training new recruits. Dedicated to his crew, he holds unwavering loyalty for his commanding officer Si-jin. He is a senior official in the Alpha Team. Jin Goo (‘Mother’) stars as Master Sergeant Seo Dae-young. Practical and highly principled, she does not shy away from accepting her mistakes. However, her views soon change when the hard truth hits her that she is unable to go anywhere without authentic connections. A strong, independent woman, she firmly believes that one does not need connections if he/she is competent enough. She works as a cardiothoracic surgeon in Haesung Hospital. Song Hye Kyo (‘Autumn in My Heart’, ‘Full House’) is Doctor Kang Mo-Yeon. Coupled with a witty sense of humor and clever comebacks, he is extremely popular among his crew members. He is a dedicated soldier and stays away from the politics of war. Excellent in academics, he graduated from Korea Military Academy. He joined the military services after being inspired by his father, who is a former Sergeant Major. He is the leader and captain of Alpha Team - South Korea’s 707th Special Mission Battalion’s prestigious special forces team. Song Joong-ki from ‘ Arthdal Chronicles‘ fame stars as Captain Yoo Si-jin. Descendants of the Sun Cast: Who is in it?