When Yoon Gyeoul's life ends at the hands of her alcoholic father, she's honestly relieved; her life was just that miserable. But, to her dismay, she somehow wakes up as Mabel, the princess of the Ermâneau Empire and beloved daughter of Emperor Estevan. As if that wasn't enough, an oracle proclaimed that Mabel is destined to save the world from doom, causing her father to make her the ruler of the empire on her first birthday.

In order to fight this unwanted fate, Mabel vows to get herself dethroned, though her schemes only earn her a reputation as a genius emperor and growing group of allies. Slowly, she learns to accept the love of her family and friends, and vows to follow her destiny. Can Mabel really protect the world she now cherishes?