Moon Lovers: Scarlet Heart Ryeo (book 1)

During a total solar eclipse, a 25-year-old 21st century woman, Go Ha-Jin, is transported back in time of Goryeo Dynasty. She wakes up in the year 941, in the body of 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...