Muse Wilde, a skilled assassin with expertise in medicine and poisons, faces betrayal during a crucial mission. As Muse lies dying, she is suddenly transported to the past in Aurelia of Thronos, where her upcoming marriage has been unexpectedly canceled by her fiancé. In this unfamiliar era, Muse must navigate the treacherous waters of palace intrigue, confronting her cunning stepmother and manipulative sister who seek to control her every move.