He shifted slightly and realized his clothes didn't fit right. The thin shirt he'd been wearing was strained across his chest and shoulders, fabric taut. His arms—he looked down—were visibly thicker, veins tracing along dense muscle. The futon creaked as he sat up, noticing his shoulders were broader, his jawline sharper.
He felt... solid. Heavy. Different.
He swung his legs over the side of the futon, feeling heavier than life. His reflection in the dusty mirror across the room startled him—he looked like a completely different person. Muscular, almost dangerous. He tested his hands, flexing them experimentally. Cursed energy hummed beneath his skin, ready to be tapped.
*He felt powerful. Unsettlingly powerful.*
He noticed a card on the table and picked it up. (Hi, in case you are wondering, yes this is or was in this case Saitama's apartment. I had it registered in your name and make sure you are recognized as a citizen because it would be pretty weird if a guy showed up with incredible powers and no one knew where he came from. Also, just so you know people in this world can see and hear Shinigami but they don't have any cursed energy to create curses. anyways off-topic I dropped you off about two days before season one episode one so you can at least get to know your new body and techniques before jumping into battle have fun.)
Yoshino stared at the card, the enhanced intelligence instantly processing the implications. He had roughly forty-eight hours before the canon events kicked off—the mysterious being appearing in A-City, in the original timeline after all the a class and lower heels are defeated Saitama would show up and kill it but that's up to me now.
He smirked, crumbling the card in his significantly stronger hand.
"So, Saitama's apartment. Convenient."
The apartment was indeed depressing—single room, bare walls, a futon that looked like it had seen better decades. it has a TV, but no luxury, just the basic necessities. It was practically a monk's cell, with some outdated furniture scattered around and a small kitchenette. Not exactly the palace he was expecting.
"Perfect for Saitama." He muttered softly.
He explored further—the kitchenette was cramped, the bathroom even smaller, with a toilet and a tiny sink. The TV was an old boxy thing, the fridge barely big enough for a week's groceries. It suited Saitama perfectly—sparse, functional, utterly devoid of comfort. Not exactly what Yoshino envisioned.
*He raised an eyebrow.*
The walk to the forest was quick—just a few minutes of trudging through the outskirts of City Z. The forest was dense, overgrown, and mostly abandoned—the perfect training ground. No witnesses, no interruptions.
Yoshino stepped into the shadows of the towering trees, the cool air hitting his newly bulked-up frame. He needed to master these techniques before the chaos started.
Yoshino raised his hand, focusing on his blood. The technique felt intuitive—like stretching an invisible muscle. A stream of crimson gathered at his fingertip, pressure building rapidly.
"Piercing Blood," he whispered, releasing the stored energy.
A needle-thin bolt of blood shrieked through the air, slicing clean through a tree trunk yards away.
Yoshino moved through the forest like a whirlwind, testing each ability methodically.
**Divergent Fist** — He struck a boulder, the initial impact cracking the surface before the cursed energy surged through moments later, shattering the stone from within.
**Black Flash** — He threw a punch at a fallen log and felt the sparks of black energy ignite. The log didn't just break—it exploded into splinters.
He honed his control with **Dismantle** and **Cleave**, the invisible slashes carving through the air like razor-sharp blades. He targeted trees, rocks, even the ground itself—mastering the precision and power required. **Fuga** was the most impressive—he unleashed a beam of scorching flames that reduced a massive oak to ash in seconds.
He reached into a shadow and pulled out The book of jujutsu sorcery and looked up how to do a barrier because you had a feeling his next few abilities. We're gonna be very destructive and he didn't want that he was association to send someone to check it out.
His enhanced intelligence absorbed the information instantly. The page on **Domain Expansion Barriers** explained the fundamentals: constructing a sealed space using cursed energy technique.
He focused, weaving a massive barrier around the entire forest. It created a dome-shaped pocket dimension—completely invisible, soundproof, and blocking surveillance. Anything destructive he did inside would remain unseen. Perfect.
Yoshino pressed his hands together, crossing his fingers in the specific shadow seal.
"Ten Shadows Technique."
The darkness at his feet churned and spilled upward. From the inky blackness, two spectral hounds emerged—one pure white, the other pitch black. The Divine Dogs. They stood silently, their glowing eyes fixed on Yoshino, awaiting their master's command.
Yoshino summoned the remaining nine shadows one by one, each taming ritual harder than the last.
**Nue** emerged first—a majestic owl-like beast with wings crackling with electricity. He mounted it briefly, testing its flight capabilities.
**Great Serpent** materialized from the shadows, its massive form coiling around the ancient trees.
**Gamatsu** appeared—a giant toad with a powerful tongue.
**Max Elephant** lumbered out, shaking the ground, and demonstrated a torrential blast of high-pressure water that nearly leveled the surrounding forest. Yoshino took note of its overwhelming size.
**Rabbit Escape** exploded into existence—a chaotic, infinite swarm of rabbits bouncing everywhere, the perfect distraction.
**Piercing Ox (Kangyu)** manifested next, its horns glowing.
Yoshino hesitated before attempting to summon the tenth shadow. Even with his enhanced intellect, he knew Mahoraga was different—untamable, unstoppable, the ultimate threat.
He pressed his fingers into the shadow seal once more, pouring every ounce of cursed energy into the ritual.
The air froze.
A single massive eye opened in the darkness above him—the divine general descended.
The ritual collapsed as Yoshino's attack connected—a devastating combination of both Dismantle and Cleave. The invisible blades sheared through the darkness where Mahoraga had appeared, sending a shockwave through the forest.
The ground splintered. The sky above the barrier rippled violently.
And then... silence.
No reaction. No counterattack. Nothing.
Yoshino stood there, breathing hard, his hands trembling slightly. He had just tamed the untamable. Mahoraga—the divine general that no sorcerer in history had ever successfully subjugated—now answered to him.
The wheel hovered above his head, silent but present, waiting for the first time its adaptability would be needed.
He had done it. All ten shadows. All techniques.
Yoshino spent the next two days submerged in cursed energy training—mastering every cursed tool his shadows held. He pulled each one from the darkness, testing blades, spears, staffs, and concealed weapons. Some amplified cursed energy, others possessed their own strange abilities—one could sever curses permanently, another could track enemies across continents.
His body barely recovered before he was back at it.
He spent hours pouring over the *Book of Jujutsu Sorcery*, analyzing the chapters on Domain Construction. He realized the hard truth: Domain Expansions aren't shared techniques. They are unique manifestations of the user's soul—a private sanctuary built entirely from one's own interpretation of cursed energy.
Trying to force Yuji's domain resulted in nothing but a dissipation of energy.
Yoshino closed the book and sat in meditation for hours, clearing his mind. He focused on his own soul, his own essence—what made him different from Yuji, different from Gojo, different from every other sorcerer.
A domain wasn't something you copied. It was something you *became*.
He let his cursed energy flow naturally, unforced, and imagined...
Yoshino's hands moved instinctively, fingers intertwining in a complex, never-before-seen hand sign. It pulled from every technique he possessed—the sharpness of Shrine, the fluidity of Blood Manipulation, the depth of Ten Shadows, and the raw power of the cursed tool encyclopedia.
The air around him shimmered violently.
**"Domain Expansion: Sovereign of Eternal Eclipse."**
The barrier erected instantly.
The barrier around him pulsed with an eerie crimson light. Inside, the landscape was otherworldly—a vast expanse of shadow interspersed with sharp, blood-red structures that seemed to shift and move like living things. The air was heavy with cursed energy, but it felt... right.
The domain manifested fully—a breathtaking expanse where crimson rivers of blood flowed through fractured landscapes of shadow. The sky was an eternal eclipse, the sun and moon colliding above. The ground was composed of countless blades, their edges glowing with cursed energy.
His domain reflected his essence perfectly—the sharpness of Shrine, the fluidity of Blood Manipulation, the darkness of Ten Shadows.
And now Inside this domain, everything was under his control.
Enemy's technique became tools to dismantle them. His shadows moved faster, stronger. His blood manipulation bled the very air crimson. And when an opponent entered—Mahoraga would adapt, but Yoshino wouldn't need it to. He would destroy them instantly.
He had done it. A unique, self-made domain expansion.