She traveled through thousands of years and was forced to embark on the road to avenge her father. A man with the same name and appearance as her former boyfriend, a man in black who tried to kill her in the middle of the night, a handsome man who became a "sworn brother" with her... Destiny forced these people into her life, putting her in desperate situations many times amid power and struggles. When all the truth comes to light, she learns that her "sworn brother" is actually the third prince of the current dynasty. However, her heart has been promised, how can she avenge her family? How can love last?