Milluki Zoldyck, the second eldest son of the world's most infamous assassin family, was an anomaly among killers. Though raised in the brutal traditions of the Zoldycks, he had chosen a path that would make his ancestors turn in their graves. Where his siblings honed their bodies into lethal weapons, Milluki had let himself go, his frame grown soft from endless hours before computer screens and countless boxes of greasy takeout.

Despite possessing the backing of a family whose very name struck terror into the hearts of the world's most powerful, Milluki preferred the company of his figurines and the glow of multiple monitors. The 19-year-old assassin was a shut-in, an otaku who found more comfort in virtual worlds than the family's notorious killing arts. His room in the sprawling Zoldyck mansion had become a shrine to his obsessions – walls lined with expensive anime figurines, shelves crammed with limited edition games, and state-of-the-art computers running the latest hacking software.

Currently, he was slouched in his premium gaming chair, a human-sized collector's edition doll perched awkwardly on his lap as he immersed himself in his latest gaming acquisition. The screen cast a pale blue glow across his round face, highlighting beads of sweat that formed despite the room's climate control. Empty energy drink cans and snack wrappers littered his desk – evidence of another marathon gaming session.

His fingers danced across the mechanical keyboard with surprising dexterity for their size, the rapid-fire clicking a stark contrast to the deadly silence that typically pervaded the Zoldyck mansion. He was so engrossed in his virtual world that the first ring of his phone barely registered in his consciousness.

Ring....

The sound of crunching chips filled the air as Milluki Zoldyck lazily reached for his phone with his greasy fingers, never bothering to pause his marathon session on his cluttered computer screens. He brought it to his ear, his tone flat and indifferent.

“Yeah,” he grunted through a mouthful of crumbs.

On the other end of the line, a calm, confident voice introduced itself. “Hello, Milluki. I’m Cade, a freelancer. I’m looking to hire you for a tracking job. Are you interested?”

Cade wasted no time with pleasantries, diving straight to the point.

Milluki snorted his attention split between the doll he was absentmindedly fidgeting with and the glowing screens in front of him. “I don’t care who you are. I don’t have time for tracking. I’m a busy guy, you see, and I don’t need your money,” he replied half-heartedly, his tone dismissive.

Cade’s voice remained steady, undeterred. “Before you hang up, I can offer you something more interesting than money.”

That got Milluki’s attention. His chair creaked as he shifted, finally sparing the phone call a sliver of his focus. “Something more interesting than money, you say? Out with it. I want to hear about it.” His voice perked up slightly, and his chair spun lazily as he waited.

“I hear you’re a fan of games and comics,” Cade began, his tone shifting into that of a practiced salesman. “Have you ever wanted to fly into the sky, possess superhuman strength, or see in the dark like some of your favorite characters? Think about it.”

Milluki’s greasy fingers froze mid-movement, his interest visibly piqued. His eyes glinted with a mixture of greed and curiosity as he leaned back, considering the possibilities. “Oh, interesting. Go on,” he urged, his tone tinged with enthusiasm now.

“I have a unique ability,” Cade continued smoothly. “I can extract traits from animals and temporarily grant them to humans. Wings, night vision, strength—you name it. In exchange, all I ask is for you to do some basic tracking for me. Sound fair? Once I’m done with my target, I can visit the Zoldyck estate and show you firsthand what I’m capable of.”

For a moment, Milluki was silent, his mind racing. The thought of soaring through the sky like a magical girl sent an excited shiver down his spine. His lips curled into a small, greedy smirk. “Fine, fine,” he said at last, waving his hand as if Cade could see him. “I’ll track your target for you, but you’d better keep your promise.”

Then, with an edge creeping back into his voice, Milluki added, “If you don’t deliver in a week, I’ll track you down and hunt you myself. Got it?”

Cade barely suppressed a chuckle. Hunt me down? In your dreams, he thought, amused. He knew all too well that Milluki’s threats were hollow, the bravado of a coward who rarely left the confines of his room.

“Understood,” Cade said simply, his tone steady. “I’ll forward you the details and the most recent photos of the target.”

Without waiting for a reply, he ended the call. Moments later, he sent over the necessary files and leaned back. All he had to do now was wait. The wheels were in motion, and Milluki Zoldyck was on the job—

Hours slipped by unnoticed as Cade sat motionless on the floor of his dimly lit hotel room. Beads of sweat rolled down his face, dripping onto the wooden floor below. His legs were crossed in a meditative pose, his breathing steady yet deliberate. Surrounding him was an invisible but tangible sphere of aura, extending precisely three meters in every direction. The energy flickered faintly, controlled and deliberate as if it were an extension of Cade’s very being.

Cade's eyes remained shut, his focus entirely on the advanced Nen technique he was practicing. En—a meticulous application of Ten to maintain the flow of aura around his body, combined with Ren to expand it outward. It was a technique that required unyielding concentration.

"This is En," Cade murmured to himself under his breath. "Using Ten to control my aura and Ren to release it into the surroundings... allowing me to detect anything within the sphere’s radius. Also, the radius in which my conjured snake can move freely."

The soft hum of his aura filled the room, the only sound in the otherwise oppressive silence. Cade’s mind wandered briefly as he maintained the delicate balance of his technique.

"If I remember right," he thought, "Nobunaga from the Phantom Troupe could extend his En up to four meters. His combat skills are leagues above mine, but when it comes to mastery of Nen... I’m not far behind. That has to count for something."

A faint smirk tugged at the corner of his lips, but it quickly vanished as another thought surfaced.

"Zeno Zoldyck, though... His En can reach three hundred meters effortlessly. Compared to him, I’m nothing but a novice." Cade’s expression hardened as the weight of his inadequacies pressed down on him. Yet, his resolve remained steadfast.

"And then there’s Neferpitou," he muttered, his voice laced with a mix of awe and resentment. "That Chimera Ant’s En spans almost two kilometers... for days without rest. That level of power is monstrous." His fists clenched at the thought, his palm tightening around the object he held.

"But it’s not beyond my reach," he whispered fiercely. "If I can’t achieve it myself, I’ll take it from those who can. That’s why I created this ability."

In his hand was a small yet intricately designed object—a Rubik’s Cube unlike any other.

GENETIC CODEX EXTRACTION.

Cade's grip tightened as his aura flared momentarily, his determination burning. "With this, nothing is out of reach."