Princess Aurelia Wynter of Lyrion Kingdom is killed by her jealous younger sister Lilith in her first life. Reborn ten years before the husband-selection ceremony, she finds Lilith also reincarnated. Lilith seizes the golden marriage dragon egg and marries cruel Prince Roland, leaving Aurelia the black egg holding a seemingly lowly serpent-man Tyven.
Recalling Roland’s brutal abuse and exploitation of her dragon pearl in the past, Aurelia rejects wealth and status, choosing Tyven despite her fat