Though sorcery and witches have long disappeared from the Elias Empire, the emperor was suddenly assassinated with an enchanted potion at Prince Theore Alpere's birthday banquet. In the ensuing chaos, Theore, although defiant as a child, is exposed to be a pushover, and despite Princess Legina B. Alpere's attempts to maintain order, she is eventually defeated by her treacherous fiancé, Herman Sylveig, and Annetta, the witch that helped him lead an uprising. However, apart from unique violet eyes, Legina inherited a relic from the first emperor: a pendant that allows her to sacrifice her own life for any wish.

Legina awakens as her 15-year-old self, now aware of the betrayal and tragedy that awaits. Most importantly, she remembers the witch's face and, this time, knows who to be wary of. Determined to crown the spoiled Theore, turn him into a proper ruler, and prevent the past from repeating, Legina must first ensure that Theore never becomes a weakling—by pretending to be an even bigger, more selfish brat than him!