The private dojo at the Osaka Continental quickly filled with the world’s deadliest teachers.
Koji brought in masters of Brazilian Jiu-Jitsu, wrestling, and kickboxing to train the boy.
For the instructors, teaching Aleksander was an unsettling experience.
A master would spend an hour explaining the perfect way to lock a joint or throw a kick.
Aleksander only needed to watch it once.
He understood exactly how the body moved and copied it perfectly on his first try.
Within weeks, he fought with the skill of men who had trained their entire lives.
But his mind soon hit a wall when it came to his seven-year-old body.
He knew exactly how much force it took to break a grown man’s leg, but he simply didn’t have the muscle to do it.
He was trapped in a child’s frame.
Rather than get frustrated, his mind adapted.
If he couldn’t use raw strength, he would use exact precision.
He changed the fighting styles he learned, taking out heavy punches and replacing them with quick, sharp strikes to pressure points, joints, and the throat.
He didn’t need to hit hard if he knew exactly where to strike to make a body shut down.
When his tiny body was too tired to keep fighting, his brain needed something else to do.
The fighters were replaced by private college professors.
School was effortless for a brain that remembered and understood everything instantly.
He blew through basic biology, chemistry, and physics in a matter of months.
By the time he was seven, he had easily passed college-level exams.
The professors came expecting to teach a smart kid, but left feeling like they had just spoken to a supercomputer.
Normal schooling quickly became boring.
He pushed further, asking for books on medicine, engineering, quantum physics, and advanced chemistry.
Because he understood how everything worked, he started creating his own ideas.
He mixed his knowledge of chemistry and weapons to design better bullets.
He studied medicine just to figure out exactly how much damage a human body could survive and how to patch it up.
But even with a mind that worked that fast, his new family kept him human.
Koji watched the boy breeze through advanced science and take down training dummies, but he never treated Aleksander like a weapon.
To Koji, he was a son.
Koji was the one who made him put down the books and eat a warm meal.
Koji knew when the boy’s brain was running too hot and would just bring him tea, sitting with him in quiet comfort to slow him down.
And then there was Akira.
To the rest of the hotel staff, Aleksander was a scary kid who saw right through people.
To Akira, he was just her brother.
She didn’t care that he understood quantum physics; she cared that he could guess when Koji was in a bad mood so they could avoid getting in trouble.
She looked up to him completely.
Whenever she had a hard time with her own training or homework, Aleksander would sit with her.
He would spot exactly what she was doing wrong and explain it in simple, patient steps so she could easily understand.
His mind was built to solve the most complicated problems in the world.
But sitting on the dojo floor, helping Akira fix her grip on a wooden sword, he realized a very simple truth: this was his family, and this was where he belonged.
The tea in Koji’s office was still warm, but Aleksander hadn’t touched his cup.
They sat across from each other in the quiet, low-lit room high above the Osaka Continental.
Aleksander, despite his small size, sat with the calm posture of a seasoned executive.
“I have mapped out the next ten years,” Aleksander said, sliding a thick leather folder across the heavy wooden desk.
“I don’t just want to train and fight, Koji.
My mind is built to build.”
Koji opened the folder.
The blueprints, patents, and business plans inside were incredibly detailed, far beyond anything a normal adult could produce, let alone a young boy.
“A company,” Aleksander explained, his voice steady and plain.
“I want to start in the medical field.
From there, we expand into cyber software, space exploration, and everyday technology.
The world is moving too slowly.
I know exactly how to push it forward.
But I need money, private labs, and a place to build things safely.”
Koji looked up from the papers, meeting the boy’s serious gaze.
He had watched Aleksander take apart complex physics and martial arts with equal ease.
He knew the boy was meant for something far greater than just surviving in the shadows of the underworld.
If Aleksander wanted to reshape the world, Koji was going to make sure he had the tools to do it.
“You have my word,” Koji said, his voice carrying the heavy, unbreakable weight of a promise.
“Whatever you need, you will have it.
The full power and wealth of the Shimazu clan will support you.”
That quiet promise in a hotel office was the spark that created Apex Industries.
The basement of the Osaka Continental smelled of melting solder and antiseptic.
Koji had cleared out a massive storage wing, giving Aleksander his first private lab.
At a stainless steel workbench, Aleksander was working on two things at once.
With his right hand, he carefully adjusted the lens of a heavy, ring-shaped metal scanner.
With his left, he was measuring a thick, blue liquid into a pressurized metal canister.
To anyone else, it would look like random tinkering, but Aleksander’s mind saw the exact chemical bonds forming in the canister and the precise electrical currents flowing through the scanner’s motherboard.
The heavy steel doors to the lab hissed open.
Koji walked in, his face tight with mild concern.
Beside him was Akira, clutching her left forearm.
Blood was dripping down her fingers, spotting the clean floor.
“She caught a bad splinter from a broken bokken during drills,” Koji said, reaching for the lab’s landline.
“It is deep.
I am calling the hotel doctor to give her stitches.”
“No need,” Aleksander said.
He set down his tools and walked over, his face perfectly calm.
“Sit here, Akira.”
He pulled up a stool for her.
Akira winced as she sat, her sleeve rolled up to reveal a nasty, jagged cut across her forearm.
It was bleeding freely.
“Does it hurt?” Aleksander asked, his voice softening just a bit as he looked at his sister.
“Only when I breathe,” she joked, though her voice shook a little.
Aleksander picked up the heavy metal ring he had been working on.
It was a prototype of the Medical Scanner, hooked up to a nearby computer monitor.
“Hold still.
Keep your arm flat.”
He passed the ring over her bloody arm.
Instantly, the computer screen flared to life.
It didn’t just show an X-ray; it displayed a perfect, real-time 3D model of Akira’s arm.
Koji stopped with his hand hovering over the phone, staring at the screen.
The monitor highlighted the cut in bright yellow.
Text rapidly scrolled down the side of the screen, listing out the damage in plain English.
“Fascia layer penetrated,” Aleksander read calmly.
“No muscle tearing.
No foreign debris left in the wound.
Capillaries severed, but the radial artery is perfectly intact.
You don’t need stitches.”
“It’s bleeding a lot, Aleks,” Akira pointed out.
“Not for long,” he replied.
Aleksander picked up the small silver canister he had been filling moments before.
He gave it a quick shake.
“This is a bio-foam.
I designed it to mimic how the body creates scabs, but I sped up the chemical reaction by about ten thousand percent.
It might feel cold.”
He pressed the nozzle and sprayed a thin layer of foam over the open cut.
The reaction was immediate.
As soon as the foam hit the blood and the air, it hissed softly, expanding for a second before hardening into a smooth, flexible white patch that perfectly hugged Akira’s skin.
The bleeding stopped instantly.
Akira let out a long breath, her tense shoulders dropping.
“The stinging is gone.
It just feels cold.” She poked the hardened foam.
“It feels like a second skin.”
“It is,” Aleksander explained, wiping down his scanner.
“It seals the wound completely from bacteria, numbs the pain, and holds the skin together tighter than any stitch could.
In three days, the foam will dry up and flake off like a dead leaf, and the cut will be closed.”
Silence filled the lab.
Akira just stared at her arm in awe, flexing her fingers.
The foam bent perfectly with her muscles, never cracking or peeling.
Koji stepped closer, looking at the computer monitor that was still displaying a flawless, rotating 3D map of his daughter’s bones and blood vessels, and then looked down at the simple white patch on her arm.
He was a man who had seen the greatest doctors the criminal underworld had to offer.
He knew men who died because a doctor couldn’t find a bullet fragment in time, or because a wound got infected in the field.
“You built this,” Koji said quietly, looking at the seven-year-old boy.
“Here.
Today.”
“Just the prototypes,” Aleksander nodded.
“To mass-produce the scanner, I’ll need to build a larger housing unit.
But the math is sound.
The chemistry works.”
Koji placed a hand gently on Aleksander’s shoulder.
The old assassin realized the boy wasn’t just smart.
He was holding the future of human medicine in a hotel basement.
“Make your lists, Aleksander,” Koji said, a rare, wide smile breaking across his face.
“Apex Industries begins today.”
With Koji’s money and his powerful connections making the legal hurdles disappear, the company was built in record time.
Aleksander didn’t waste time with small ideas or test markets.
He launched Apex Industries with two products that completely shook the globe.
The first was the Apex Medical Scanner.
It wasn’t just a better MRI or X-ray; it was a perfect diagnostic machine.
A patient only had to stand inside it for a few seconds.
The machine would map their entire body, instantly spotting any hidden tumors, blocked arteries, or tiny nerve damage without a single mistake.
It took the guesswork completely out of being a doctor.
The second product was the Bio-Foam Patch.
It looked like a simple, sleek spray canister, but the chemistry inside was decades ahead of its time.
When sprayed on a cut, gunshot, or burn, the foam instantly expanded and hardened.
It completely sealed the surface wound, stopped the bleeding on contact, and sped up the body’s natural healing process.
For regular hospitals and paramedics, it was a miracle tool.
For Koji and the hidden world of assassins, it was a complete game-changer that kept fighters alive when they should have bled out.
Dropping these two items onto the market created absolute chaos.
Rival medical companies panicked, hospitals scrambled and fought to buy the machines, and the stock market went crazy trying to value the new tech.
Almost overnight, the massive profits and public demand pushed Apex Industries to incredible heights, making it one of the most famous and powerful companies on the planet.
For a normal person, changing modern medicine would be the peak of their life’s work.
But for Aleksander, sitting at his new desk and watching his designs change the world, this was only the first step.