 Upon death, Ellen made Prince Joon promise to give her pendant with the family insignia (a sign of the owner's status as the head of the Antoweif family) to her daughter Ashley.Although Ashley was supposedly found dead of disease, the girl was a double that is common among noble families-and Joon eventually discovered that Sei-Ann is in fact Ashley.Because of his promise, Joon loses the claim to the throne-something that he had been virtually guaranteed of due to his mother's high status prior to becoming queen.