After Transmigrating into Someone Else's Transmigration Novel Plot

Luna transmigrated into a book.

She entered a novel titled "Wandering Another World, Starting as a Fallen Noble", becoming the eldest daughter of the Border Count of the Northern Frontier. It was a pretty good background, all things considered. The problem was...

There was already someone who had transmigrated into this book.

The protagonist, Vina, was the chosen one, bound to the plot. And Luna? She was the daughter of a border noble who didn’t exist in the original story. The main plot took place in the imperial capital, while she was up north, far from the emperor’s reach. She didn’t even qualify as a sacrificial extra.

Luna thought that suited her just fine. Stay away from the protagonist, stay away from the plot, and live a peaceful life.

But the Northern Frontier was destined for turmoil.

The barbarians were in revolt, and the fate of her father dying in battle hung over her. The mysterious organization known as Qiu Xu was stirring, its madmen willing to do anything to uncover the origins of magic. And the mythical being born in the depths of the polar night was about to drag the entire Northern Frontier into an even greater maelstrom.

Luna decided not to sit around waiting for disaster.

She created a puppet, tore apart her own soul, and poured it into the puppet, creating an independent “other self” named Ophelia. From that day on, she lived as two people.

In public, Luna was the apple of the Border Count of the Northern Frontier’s eye, a magical prodigy about to enter Saint Funiya Academy.

In secret, Ophelia ventured onto the icy plains of the Northern Frontier, befriended Qiu Xu’s mad puppet masters, brought the barbarian tribes under her sway, founded a new empire, and claimed the crown of the Demon King.

Ten years later, when the story officially began...

Luna was leisurely sipping afternoon tea at the academy, while her other self had become the most fearsome figure on the entire continent.

As for Lorian, the original heroine who had been reduced to a slave?

Luna thought it over, then decided she might as well save her.