Moon Lovers: Scarlet Heart Ryeo is a South Korean television series based on the Chinese novel Bu Bu Jing Xin by Tong Hua. Ii tells the story of Hae Soo (IU), a 25 year old girl from modern era got transported back to Goryeo dynasty and got trapped in the conflicts and struggles between princes of Wang’s House. There, she falls in love with Wang So (Lee Joon Ki) who makes other people tremble with fear.