I'm Secretly the Father of the Yandere Villainess's Daughter

”Author-san” glanced with his ring finger as his senses took in the ruin scattered everywhere across the street—those shattered roads lying beneath his balcony once more. He then slowly raised his gaze toward the depths of the open sky above him, a faint, mocking smirk forming on his lips before he pushed the glass window shut, sealing the insulation tightly once again!

The power was completely out, and pitch-black darkness enveloped every corner of the apartment, yet he paid no heed whatsoever to such a trivial matter. Stepping firmly through the center of his dark living room, he leaped fluidly over the crystal chandelier that had shattered across the floor, casually stepping past the fragments to reach his private desk, which lay in a state of absolute ruin and devastation!

The cup of instant noodles and the water bottle had spilled completely, liquids soaking deep into the carpet, while strands of noodles lay scattered across the keyboard. Meanwhile, the laptop screen flickered weakly, displaying a cute video of little kittens!

”Author-san” grunted in annoyance, sweeping away all this chaos in an instant as he whispered a cleansing spell to purify the area. Utilizing the same spell across an expanded range, magical light burst across every corner of the entire apartment. Within seconds, the scattered glass fragments vanished from the floor, and the framed artwork reclaimed their hung positions upon the walls as if nothing had ever transpired!

He sat in his chair, gazing at the digital manuscript he had spent the past period meticulously writing and polishing... and with a single, unregretted keystroke, he erased everything completely!

His currently paused novel didn’t need a mere rewrite or plot patching; he had literally been writing within this same world and story for many long years—so long that original readers who began reading his first Chapters as teenagers in school were now grown men in their seventies!

What could possibly compel those grown men, who had lost their passion and interest in his old novel ages ago, to return and read it once more?!

His previous idea had revolved around executing the new plotline devised by ”The System,” but he had come to the painful realization that even while residing at the sovereign Truth Level, those two beings—Cain and Lucy—had grown light-years stronger and more formidable than him!

Now, having waged an unannounced war and numerous battles against Cain, it had become painfully clear that all those attempts had yielded nothing but consecutive losses and setbacks!

The author was left with merely two official warnings and an explicit threat of absolute erasure from Morzoth, not to mention two terrifying monsters hunting him across dimensions!

He rested his head in his hands, wondering in total loss: What on earth should he write now?!

Following deep contemplation and a rapid review of how his Extreme Reader’s life had unfolded since Empress ”Lucy” appeared carrying their daughter, Amelia... he realized something fundamental; ever since that exact moment, Cain’s life hadn’t seen a single day of peace or stability!

Thus... wouldn’t the dramatic, chaotic details of his reader’s life during that brief period serve as rich material for a legendary new novel?! A novel bearing a title that perfectly captured the spirit of this era—a title describing the story with utter clarity and smoothness:

”I’m Secretly the Father of the Yandere Villainess’s Daughter”

”Author-san” grinned broadly and brightly!... Wasn’t he—in one way or another—the official patron and rightful owner of ”Cain’s” rights, considering he was the one who extracted and transmigrated him to that world in the first place?!

From the very beginning, he had been subjected to harm and relentless hunting by this Extreme Reader. Now was the time for his reader to compensate him for everything he had suffered because of him!

Though it might appear shameless or completely devoid of pride to use the very person who had been hunting and terrifying him moments ago to earn money and cosmic gain... he reasoned pragmatically: his reader’s current life had become a fully crafted, thrilling plotline, whereas the original protagonist Hykes’s life had turned into a hollow chase after phantom power in a desperate bid to defeat Cain!

”Author-san” believed he had finally attained enlightenment and glimpsed the absolute truth, hammering away at his keyboard with wild enthusiasm for the new plotline, completely oblivious to the fate and the event awaiting him just around the corner!

At that very moment... on the surface of the exact same planet... Planet Earth!

Inside the Civil Registry and Population Records Department, the building was completely deserted, submerged in total chaos. Papers and documents lay scattered everywhere, and office desks were smashed and flipped upside down from the aftermath of the previous earthquake, while the hanging ceiling light flickered with an intermittent glow and a sharp electrical buzz...

People had evacuated and fled entirely from the streets surrounding the civil registry building...

Yet, while absolute silence hung heavy over the space, the sound of the building’s automatic doors sliding open echoed through the hall, as two shadows stepped firmly inside!

It was them: Cain and Lucy!

They entered the vacant civil registry, quietly surveying the empty corridor and the documents scattered around them.

The pair paid zero mind to all signs of ruin and devastation, walking forward with their hands warmly entwined; in fact, the complete absence of humans made the setting infinitely better and far more fitting for them!

They had entered the hall dressed in the most breathtaking, exquisite attire imaginable. Cain wore an extraordinarily luxurious and sharp formal suit that accentuated his handsome features and impeccably styled hair fit for royalty. As for Lucy, who held his hand with sweet elegance, she wore a legendary wedding dress that mesmerized the soul—crafted from the noble, rarest ethereal materials that did not exist anywhere in this universe or this entire physical dimension!

The bride and groom strode through the absolute ruin with dignity and tranquility, bound for one singular purpose... to officially execute their eternal marriage document; the ultimate, sole objective that had brought them to Planet Earth in the first place!