The imminent arrival of a prophesied savior, destined to save the world, spurs the youthful and pure-hearted emperor to agree to a marriage for the greater good, despite initial perplexity. But their plans to wed face opposition when the lead character's father forbids his daughter from becoming empress, provoking the protagonist to challenge their father's intentions and the roles of their siblings. The critical query is whether they can realize the prophecy and rescue the world. This one-shot is a promotional manhwa, based on the novel of a matching name.