The original isekai fantasy romance light novel behind the hit anime adaptation—Why Raeliana Ended Up at the Duke’s Mansion. Fated to be poisoned by her betrothed, Eunha Park didn’t wake up inside a novel just to die again as an unfortunate extra!

Now living as Raeliana McMillan, a strong heroine whose early demise was meant to set the story in motion, she takes destiny into her own hands with a daring proposal: a temporary fake engagement and contract marriage with the empire’s most powerful and dangerous man—Duke Noah Volstaire Wynknight. He is the story's dangerously charming male lead, and in exchange for keeping one of his darkest political secrets buried, the Duke agrees to protect her.

But life as his “fiancée” proves anything but simple. Behind his angelic smile lies an icy heart, and every encounter pulls her deeper into a web of royal court intrigue, deep-seated secrets, and a dangerously shifting affection that blurs the line between deception and desire. Raeliana may have escaped one doomed engagement, only to find herself bound to another—one far more treacherous, and infinitely harder to resist. But will this cold-hearted, angel-faced demon truly save her from her fate… or rewrite it entirely?

A beloved classic for fans of fluffy contract marriage romances, this series is a perfect companion for fans of the hit anime adaptation of the same name, currently streaming worldwide on Crunchyroll. Filled with charming chemistry, mystery, humor, and iconic romantic tension, it remains a staple recommendation within the genre. Discover the global phenomenon that has captured the hearts of over 72 million readers worldwide in a captivating romance-fantasy about fate, ambition, and the peril of falling for the man who was never meant to be hers.