I'm 90 years old and the system tells me it's time to create harem - Chapter 1: A system sixty years too late

There was a popular comic that captured the hearts of readers not because of its plot, but rather the bromance between the two protagonists, a crown prince and a duke. Their friendship & mutual trust led fans to ship them endlessly, with countless fanfiction stories ranging from dating to marriage or even incorporating omegaverse settings.One particular m-preg fanfic novel became extremely popular among fans, where the previously cold duke becomes pregnant.But the popularity of both the original comic and this novel caused everything to become unbalanced, until something strange happened - these works of fiction turn into real worlds that collided, creating an error that connected them together.In the world of the comic:Carlton from the fanfic world gazed up at his husband with longing eyes. “Husband...” He pouted, “Why don't you kiss me today?”Alaric from the comic world recoiled slightly and goosebumps broke out over his skin as he moved away. “Please don't come close to me...” He said tersely.Meanwhile, in another world:Alaric from the fanfic world, pulled his beloved Carlton into a warm embrace and peppered kisses on his cheeks. “Darling, are you mad at me?” Alaric asked affectionately. “It's okay, you're still cute.” He leaned down to whisper into his ear before continuing. “But don't forget to comfort all our children, they think you're mad at them.”Suddenly, seven children barged into the room and called out to their fathers. “Father, Daddy!” they exclaimed.Carlton's frozen expression spoke volumes about his state of mind as he tried to process what was happening. His murderous gaze fixed on Alaric as he muttered through gritted teeth. “Whose children do you say they are....?”

Perla had always felt a longing for adventure, stifled by the rules of her strict upbringing and surrounded by her older brothers free to do as they wanted. She longed to carve her own path, to seek out excitement and perhaps even a little romance along the way. One day, while escaping yet another tedious piano class, she stumbled into the hollow of a massive tree. At its base, a mesmerizing green light beckoned her, and before she knew it, she was transported to a bizarre forest teeming with colossal, long-extinct creatures and menacing carnivorous plants.This was the realm of Beastkin, where men could transform into mighty beasts. Here, the constant threat of war had led to a peculiar imbalance, with most females giving birth to male Beastkin, resulting in a dire shortage of women. The land was a battleground, filled with mercenaries and adventurers seeking glory. While the males formed companies to embark on quests, their females stayed behind, living a life of comfort. But not Perla—she was determined to break free from the mold, to grow stronger, and to join her new love interests on exhilarating escapades.

The doomsday fell upon the earth when a dragon coffin sealed under a snow mountain for ages shifted, and the civilization of gods and devils began. The whole universe turned into a fantastic new world where everyone could rise to the top through cultivation. A lucky young boy seized the opportunity, and started his journey to be an overlord in cultivation.

- Description from Novelupdates

Seth Evergreen was the greatest scientist of his time. With his insatiable hunger for knowledge and groundbreaking discoveries, he had made Earth reach new heights of prosperity and scientific advancements.

But everything changed when he stumbled upon the life equation, cracking it and discovering the fabled 'healing factor.'

Seth believed he had found the key to eternal youth and announced his discovery to the world in the form of a new drug. But then the mutations began. The human body, it seemed, was not meant to be perfect.

The drug's effects began to spiral out of control, creating monsters out of those who had taken it. After spending 7 years trying to remedy his mistake, he finally gave up and pulled the trigger.

But when he opened his eyes again, he found himself in a world unlike anything he had ever seen before. The world of Gilea, where magic and mana exist, and the strong prey on the weak.

Determined to complete what he had failed to do in his last life, Seth, now known as Silas Skylark, sets out to become the strongest mage, to take Gilea out of the dark ages and into an age of prosperity and change.

Unbeknownst to him, the life equation branded itself into his soul, morphing his body and mind into a being with only one goal...

To evolve!

But as the shadow of his past looms over him and powerful forces seek to control him, Silas must overcome weaknesses and reach new heights.

Will he succeed in his quest to bring prosperity and change to this world, or will his past sins come back to haunt him once again?

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