In the empire of Dorama, which was established in a distant land, every emperor has a musician; the musicians are not selected from the folk, but come from the noble family of musicians, women with transparent blue hair and emerald iridescent hair that symbolize blood. The musicians will be baptized by ancient spells after entering the palace. They must swear to their emperor and be loyal to their king throughout their lives.
The night before the new king ascended the throne, Leiye, the eldest son of Yuesa, agreed to the request of his twin sister Lansha, who was about to elope with her lover, and decided to replace her sister in the palace and become the king's musician... The love between the king and the musician, in the face of the opposition of the ministers, the choice made by the emperor actually contributed to the tragedy...