the story starts different then this as this story begin when the eclipse of the sun takes place, a 21st century woman, Go Ha Jin, is transported back in time to the Goryeo Dynasty of Korea. She wakes up in the body of 16-year-old Hae Soo, a noble lady. In the beginning hea soo befriended some of the princes of the kingdom. She faces multiple hardship, and fall in love with one of the princes. However, a rivalry starts between of the princes because the fall for the same lady.
It's story about the brothers who have fight about throne and powe. Main female character don't want to be a queen etc and she is badass girl. The have same evil girl who want power and like main male character, and bad brother who drems about throne.
This is set in the kingdom of Silla, is which the forum hwarang which mean "flowering Knights" or "handsome and cute nobles" that would wield great influence in the future of the kingdom. In the drama both of the male leads fall in love with the same female lead, and conflict start between those male leads. Also there is another twist between the two male leads that both of them did not expect it.