The police officers at South Korea’s busiest patrol division toil day and night as keepers of law and peace — but the reality is far from orderly.

Set during the Silla dynasty, Sam Maekjong is the son of the fallen king and present queen regent, Jiso, but he has been kept in hiding for protection ever since he was a young boy, when his father was murdered. Over the years the powerful nobles have tried and failed to usurp power from Jiso, causing her to grow wary and later even reluctant to hand the throne over. As her son comes of age, she creates the Hwarang, an elite group of male youth who train in fighting and education. Their existence cuts across the existing power factions and Sam Maekjong is amidst their ranks under the false name Kim Ji-Dwi, unbeknownst to other Hwarang members.

Dong Yi is a 2010 South Korean historical television drama series, starring Han Hyo-joo, Ji Jin-hee, Lee So-yeon and Bae Soo-bin. About the love story between King Sukjong and Choi Suk-bin, it aired on MBC from March 22 to October 12, 2010 on Mondays and Tuesdays at 21:55 for 60 episodes.

Dong Yi recorded solid viewership ratings in the mid-20% to 30% range, and Han won acting awards for her performance.