Until she heard the news that her father was returning from the battlefield after a whole year, Liria was just a child filled with dreams.

She thought that now her other cousins and relatives wouldn’t be able to ignore her anymore.

“Liria doesn’t have a mother, and now her father might not come back either?”

“That’s right. They say not many people have returned alive from the beast subjugation in the North.”

“No. My father is strong, so he said he’d definitely come back!”

Liria was feeling gloomy as she wrote a reflection paper, confined to her room as punishment for biting the arms of the children from the branch family.

She had always been teased about her mother running away, but after her father left for the beast subjugation, she felt even more isolated.

When one month turned into two and then into a year, she had the frightening thought that if something really bad happened, her father might never return.

Her father’s survival was confirmed through communication reports from the subjugation team that left with him and letters that came once every two weeks.

Each time, Liria recalled her father’s face before he departed.

“…I’ll be back soon. Liria is brave, so you can wait, right? A month will pass by before you know it.”

The large hand thoroughly ruffled Liria’s hair.

Though he was stern, that warmth and look in his eyes were so gentle.

She couldn’t accept it.

Why did her father have to go there of all places?

“Father, can’t you just not go?”

“…I must go. I have to fulfill my responsibility as a magician.”

He said it was an imperial order.

An order to dispatch skilled individuals from each family to eliminate the magical beasts trying to cross the border.

In fact, even young Liria could see that it didn’t make sense. It’s not like Classid was the only magician in the family.

Uncle Osdel, Uncle Benjamin, and Aunt Belita were all staying behind.

She even heard that Grandfather had opposed it.

Classid was the second most powerful magician in the Roberg family after Grandfather.

He was a genius who could manifest three attributes: lightning, ice, and even metal.

Not only that.

He even mastered swordsmanship with his extraordinary intellect and strong physique.

His only flaw was that he was too perfect.

Hence, there were even those who quietly suggested Classid as the next head of the family instead of the eldest son, Osdel.

However… the letters stopped coming along with reports that the subjugation team had gone missing.

After two months passed like that, Classid miraculously returned, but he was in a coma.

Liria overheard the family doctor saying that he would no longer be able to use magic.

“His heart was severely injured in the fight against the magical beasts.”

Liria cried day and night, watching her father who wouldn’t wake up.

Even when her nanny Marit tried to comfort her, she skipped meals and refused her favorite fairy tale books and toys.

Exhausted from crying, Liria fell asleep and had a nightmare about the Roberg family’s downfall.

And then, as if lightning struck in her mind, she realized that this world was inside a book.

It was the romance fantasy novel “Isekai Saint” that she used to enjoy reading in her previous life.

She was Kang Ye-na, a poor high school student who lived in another world.

Liria and Ye-na.

Her lives were tangled like a mess of threads, and it took about a month for her respective memories to settle into place. During that time, Liria was confined to her room, feeling headaches and dizziness with even the slightest movement.

Once her mind was sorted out, her body felt light, but Liria became extremely anxious.

Because…

This place where she lived, the Roberg Duchy, was the trash villain family that would imprison the male protagonist who would awaken as the strongest in the future.

She thought it was absurd.

To think that the Roberg she was part of was that villain family from the original story, and she was the villainous supporting character who would get caught up in it and die.

Moreover, in the original story that Liria remembered, her father, Classid, was already dead.

The cause was an incurable disease.

In this world, there were various types of power, but magicians used mana.

A magician’s heart, the mana heart, was where mana gathered. A hole had formed in Classid’s mana heart, and it was an incurable disease in this world.

A disease where one would wither and die when all the remaining mana in the mana heart was depleted.

She had to somehow prevent the terrible future that was approaching.

“…I’m the only one who knows the original story.”

Liria possessed complete knowledge of the original work—the protagonist’s powers and weapons, their allies, and every major event to come.

Moreover, with her seventeen years of experience living in the modern world as Kang Ye-na, even though she was now a baby, she held an advantage over others.

The starting point of the original work was the winter of Imperial Year 1203 when the male protagonist Adrian was kidnapped.

It was now the spring of Imperial Year 1200.

There were 3 years left.

So she had to act before the original story began. To do that, she needed to carefully review the original work again and prepare for the future.

***

“Saint of Another World” was a common cliché story.

It was a story about the female protagonist Tiana, who lived as a holy power battery for the great saint of the temple, finding her real family and healing the male protagonist Adrian’s physical and emotional wounds with holy power and love.

In the process, she also monopolizes the love of sub-male characters including the youngest captain of the empire’s first knight order, the boss of the underworld who owns the information guild, and the master of the continent’s largest foreign merchant group.

Of course, the male lead was set as Adrian.

In that story, Roberg was portrayed as a hellish place where the male protagonist Adrian endured his ‘unfortunate childhood’.

Osdel, the villain who tormented Adrian so much, appeared as the head of the Roberg family and its absolute master in the original work.

He commits a major incident by kidnapping Adrian, who was abandoned as an illegitimate child of the imperial family, and imprisoning him for 9 years.

The reason was that Adrian was an awakened one with special powers.

Magic, which drew upon mana.

Swordsmanship, which channeled aura built through physical training.

Holy power, born from faith and sacred artifacts.

And finally, Eternal—the power of the awakened ones—which manifested through intense emotions.

The stronger the hatred, the greater its destructive force.

The awakened ones possessed what was known as the Eternal Heart, sealed at its core until ready to bloom.

And to release that seal, an intense and shocking emotional disturbance was needed.

Sometimes, those who wanted to use the awakened ones would inflict pain to force them to bloom.

In such cases, even if they awakened their power, it was common for them to either go berserk or die. The male protagonist Adrian fell into this category; he went berserk but fortunately survived.

However, forcibly awakening their power came with a price: they would be immediately bound to their master through a slave’s seal.

Awakened ones who bloomed naturally with their own power were not only difficult to subdue, but the slave’s seal wouldn’t work on them. In other words, they would become the strongest beings that no one could stop.

In Osdel’s laboratory, besides Adrian, someone else was also imprisoned, but their exact identity was unknown.

It seemed that they had imprisoned another awakened one in case Adrian died.

Osdel kept Adrian confined when he was young and sent him to the laboratory at fifteen. Only awakened ones who had passed puberty could bloom.

He confined him there and made him feel sadness and pain.

That was the easiest way to draw out emotions.

The first awakening occurred during the experiment process, and Osdel tormented him even more cruelly.

The portal that swallows everything.

He made Adrian commit numerous crimes and cover them up with his power.

Adrian, who was suffering from a life as a tool, finally went berserk during his second awakening.

It was a powerful rampage that demolished the Roberg ducal castle and broke all the seals.

An enormous blue light covered the ducal castle, and everything illuminated by his portal was sucked in.

From then on, Adrian decided to kill everyone in the villain family Roberg that had tormented him and begin his revenge to destroy them.

If things remained as they were, Liria, as a noble lady of Roberg, was certain to meet a death ending.

‘I can’t die like this.’

To survive in this life, she must not do anything that would incur the male protagonist Adrian’s resentment.

To do that, it would be safest to prevent Osdel from becoming the family head and remove him from Roberg altogether.

‘Above all, the most urgent thing is.’

Her faded green eyes fell on Classid lying in front of her.