VILLAIN'S HAREM IN OTOME GAME

Chapter 13: Why?

Norelia’s face turned red that could easily put a beetroot to shame. The words in her mind struck

in her throat, leaving her mouth opening and closing like a helpless fish on land.

"What... what in the world—is this thing?!" she stuttered, her fingers gripping the paper so tightly she nearly ripped off the page.

She then looked up at the culprit, who was currently standing across her with a level of pure, unhinged shamelessness that defied all laws of human decency.

Eren’s blue eyes brightened, giving her a devilish grin as he started explaining.

"This? Of course, it’s just a highly advanced localized massage device. People in this world work far too hard and rarely have the time to find proper physical relief. This machine simply relaxes targeted muscles without requiring any outside assistance."

The smut loving girl darted back her eyes to the diagram, specifically the part labeled ’Anatomical Placement for Optimal Resonant Friction.’ she knows what kind of device this is. And now she knows what kind of guy he is.

"You... you expects me to believe this is for shoulders?!" she squeaked, slapping the blueprint face down on the table, pretending to be tough. "The tip is literally shaped to—to...!"

"To what?" Eren interrupted, leaning on the table with a smug face. "Prephas, you thought that I made this blueprint for some other motives? "

"Shut up! Just shut your mouth!" Norelia slammed her hands on the workbench, her small chest heaving as she glared at him through a veil of absolute mortification.

Her mind was a mess. On one hand, Eren Volsver was an unmitigated pervert who deserved to be locked up.

On the other hand... she could see the sheer, unholy genius of the design.

A self-sustaining, ambient-mana-powered device capable of delivering targeted, high-frequency stimulation?

It was a masterpiece.

And the thought of never having to rely on her own fingers again was a fiercely tempting prospect that her traitorous body was secretly cheering for.

She bit her lower lip, her eyes staring at the blueprint.

"If... if I hypothetically agree to assist you with your secret side-projects," she muttered, her voice dropping to a fierce, embarrassed whisper as she refused to make eye contact. "You will hand over this massage device blueprint? And you will never speak of this to another living soul?"

Eren chuckled at her defeat, honestly, he knows her only through the game where he thought she’s just a cute, lazy scientist. But who knew he got luck on his side and caught her other interests. He just went on instinct and this girl caught on it without hesitation.

He gave her a soft smile that she felt it’s genuine for the first time. He leaned closer to her, giving her heart a boost.

"Don’t worry, Miss Librarian. It’s something I won’t reveal to anyone, even if they used spells to extract my memories, they won’t get anything about this. Because it’s something precious I consider."

Norelia let out another long, defeated sigh that sounded like a tire slowly leaking air. She grabbed the scandalous blueprint, rolled it up aggressively, and shoved it directly into her oversized coat pocket.

"Fine. A deal is a deal," she muttered, keeping her face resolutely turned away from him, eyes landing on the perfectly made blue prints.

She knew many genius people, many scholars in the mana engineering field. But never once she encountered a genius who could make something so complex into simple.

"It’s weird," she muttered.

"What’s weird?" Eren asked, tilting his head with a casual, lazy posture.

"You confuse me, Eren Volsver. One moment you’re blackmailing me with a level of pure, unadulterated perversion, and the next... you’re presenting mana-circuit schematics that shouldn’t even exist.

I’m a prodigy, yet I’ve never seen anyone bridge a mechanical framework like this. How did a spoiled, brainless heir who spent his days stalking the saintess candidate learn so much about advanced mana engineering?"

The playful smirk slowly faded from his lips. For the first time since he had woken up in this world, Eren found himself genuinely confused. How did I learn this?

Back on Earth, his family had owned a massive electronics corporation.

But Eren wasn’t the golden heir; he was the illegitimate mistake. He remembered spending countless nights in a cramped workshop, burning his fingers and mastering complex circuit boards from the age of ten, all for one reason—to hear his father say good job.

But what did he get in return? Nothing. While his half-siblings were handed executive board seats just for learning basic business management.

Looking back, he felt truly pathetic. He had wasted an entire lifetime trying to earn the love of a family that valued power.

’So why am I doing it again now?’ Eren wondered, his blue eyes staring at the components on the table.

In this world, mana flowed through conductors exactly like electricity flowed through copper wires and his modern electronic mastery translated into this world’s magic system like a cheat code.

But revealing this genius to the public would completely shatter his dreams of an aggressively lazy, luxurious noble life. The Royal Court would drag him in as a state researcher like he’s doing to Norelia here.

But thinking about Liora made his chest tightened with a strange warmth.

She was not his real sister. He hadn’t asked for this second chance.

But he damn sure wasn’t going to stand by and abandon his new sister like his siblings did to him.

"Let’s just say," Eren broke the silence, his voice dropping into a quiet tone, "I know exactly what it feels like to be completely helpless while the people who are supposed to protect you look the other way. I’m not letting my sister die when the solution is sitting right at the tip of my fingers."

Norelia blinked, completely caught off guard. The punchable, arrogant brat was carrying a weight she couldn’t understand.

Eren let out a short, self-deprecating laugh. He slapped his hands on his cheeks to wake himself up.

"Besides," he winked, his devilish grin came back into place, "if I don’t cure her quickly, my father is going to realize that the bill I just ran up actually cost more than a small manor. I need results before he decides to kick me out to be homeless."