Ha-jin travels 1000 years back in time and lands in the era of Goryeo Dynasty as a young girl named Hae-soo. She, now trapped in another person's body, becomes involved in a power struggle against various vicious contenders to the throne.

When a total eclipse of the sun took place, a 21st century woman, is transported back in time to the Goryeo Dynasty of Korea, in the body of 16-year-old girl. There she witnesses love, rivalry, politics, and friendships ensue between the handsome princes, in a fight for the throne, friendship, and love.

When a total eclipse of the sun takes place, Go Ha Jin is transported back in time to the start of the Goryeo Dynasty of Korea during King Taejo's rule. She wakes up in the body of 16-year-old Hae Soo and finds herself in the house of 8th Prince Wang Wook, who is married to her cousin. She soon befriends several of the princes and meets the ostracized 4th Prince, Wang So. Although she knows she should not get involved in palace intrigues over the succession to the throne, she inadvertently becomes a pawn in the struggle, as several of the Princes fall in love with her.—MyDramaList

Go Ha Jin is a young woman of the 21st century who, following her break-up with her boyfriend, finds herself by the sea. In trying to save a child from drowning, an eclipse appears and she is transported to the Goryeo Era, during the reign of Taejo, the first king of that era. She will then have to live under the identity of Hae Soo, cousin of the wife of Wang Wook, the 8th Prince, and will thus be involved in the conflicts between the Wang Princes.