Title: Moon Lovers: Scarlet Heart Ryeo
Genre: Historical, Romance, Fantasy, Melodrama
No. of Episodes: 20
Release Date: August 29 – November 1, 2016
Lee Joon-gi as 4th Prince Wang So – who has been sent to Shinju, a foreign nation, at a young age. He was practically a hostage. Also known as “Wolf Dog,” he is feared for he has killed wolves. He wears a mask on his face to hide the scar on his face that his birth mother gave him. Because he was different from other princes, he is often ignored and misunderstood. He hated himself and all those who would not accept him.
Lee Ji-eun as Go Ha-jin / Hae Soo – is a modern day woman who drowns in a lake during an eclipse. As a result, she travels back in time to the reign of Gwangjong as Hae Soo. She is an innocent and idealistic girl, who lives with her distant cousin’s family. In this era, there was one particular king that succeeded the throne, with the cost of killing his brothers. With little snippets of old history, Hae Soo must find the evil brother and save the rest from death.
Kang Ha-neul as 8th Prince Wang Wook – He was demoted, but returned to his prince status by marriage to a powerful family. He is caring, intelligent, and thoughtful. As a son of his father’s concubine, he carries a heavy burden of protecting his mother and sister from others with great political power.
Hong Jong-hyun as 3rd Prince Wang Yo – who greeds for the throne. He has an ulterior motive, which is shown by his manipulativness and bullying.
During a total solar eclipse, a 25-year-old 21st-century woman, Go Ha-jin (Lee Ji-eun), is transported back in time to the Goryeo Dynasty. She wakes up in the year 941, in the body of 16-year-old Hae Soo and there, she encounters the many royal princes of the ruling Wang family. She initially falls in love with the gentle and warm 8th Prince Wang Wook (Kang Ha-neul), and later Wang So (Lee Joon-gi), the fearsome 4th Prince who hides his face behind a mask and is given the derogatory label “wolf dog.” Meanwhile, rivalry and politics ensue among the princes, in a fight for the throne, as Hae Soo finds herself unwittingly caught between it all.