Boros had never placed much faith in prophecies. Pragmatic and prideful, he'd seen the chaos they brought — seers exposed as frauds chasing wealth, power, and reverence, and countless others throwing their lives away chasing visions that would never come to pass.
But twenty years ago, when a prophecy was delivered to him personally, Boros had been too desperate to ignore it. After centuries of scouring the stars for a worthy opponent and finding none. After killing trillions, wiping out planet after planet, and enslaving the rest, what did he have to lose? He had to chase it — even if it was foolish. It was a glimmer of hope, in his bleak, boredom-filled world.
It took time, and no small amount of his own particular brand of persuasion, but eventually, he acquired the charts and coordinates the seer had spoken of. And the moment his single eye locked onto the image of that small, insignificant-looking blue planet, confirming it existed, he felt it in his bones.
There was no turning back now.
He would travel to this so-called Earth and face the warrior promised by fate — the one who would finally give his life meaning again.
---
"Consecutive normal punches," the bald-headed man — Saitama — called out in a flat, almost bored tone.
A barrage of crimson fists, like a storm of meteors, rained down on Boros.
In mere seconds, hundreds of strikes landed, tearing the alien warlord apart — chunks of flesh, smears of blood, and fragments no larger than pebbles scattered through the air.
But even as his body was reduced to debris, one thing remained: Boros' eye — and more importantly, his regeneration core.
The alien's eye snapped downward, locking onto the core just as his flesh and blood rocketed back to it, reforming his body in an instant. In the span of a heartbeat, Boros stood whole again — snarling, defiant… and gleeful.
"That's the power I've dreamt of!" he roared, his voice cracking with savage excitement. "But I will DEFEAT YOU!"
Blinding white light erupted around him, blue lightning streaking through the air like wild serpents. Hovering alone in the sky, Boros extended his limbs wide. Energy crackled, searingly bright and deafening, tearing apart the remnants of his ship with stray arcs alone.
"All of my energy… in this one attack!"
The sheer force of his gathered power warped the air itself, turning debris into molten slag. The very atmosphere blistered into plasma, a storm of heat and light that bent the horizon.
"I'LL BLAST YOU. AND THIS ENTIRE PLANET TO HELL!"
The ground quaked. The air split, apart, forming into plasma hotter than the sun.
"COLLAPSING STAAAAR…"
Beams of energy shot out from Boros in all directions — up, down, left, and right — forming a radiant, blinding star of pure destruction.
"ROARING CAAANON!!"
The blinding radiance of Boros' Collapsing Star Roaring Cannon consumed the heavens, a beam of apocalyptic energy streaking through the upper atmosphere, parting clouds and space itself.
All light bent toward the beam's core, darkening the sky around it. A swirling, devouring void formed at the heart of the blast, pulling in debris, clouds, and shattered remnants of the ship. The centre was a blinding blue spear of annihilation, while a dazzling golden corona rippled around it. An attack that some may call beautiful.
But Saitama's face, at last, sharpened.
His features tightened, his gaze narrowing as if, for the first time, he was acknowledging the attack before him. A calm, unreadable focus replaced his usual apathy.
"In that case," he muttered, raising his fist, "I'll use my final move."
His hand clenched tight, knuckles cracking under invisible pressure as the air around him seemed to freeze.
"Killer move. Serious Series..."
The floor quaked, as if the world itself feared what was coming.
"Serious Punch."
His fist flew forward.
A shockwave erupted the instant he moved, tearing through the blinding, planet-destroying beam like a blade through mist. The massive wall of energy, once unstoppable, was split clean down the middle. The air billowed outward, the coursing streams of heat and plasma evaporating in an instant.
A wind so fierce followed that it shredded what remained of Boros' ship, ripping apart clouds so far that those in space couldn't ignore, as if a god had parted the clouds of earth.
The shockwave stretched into space itself, parting the atmosphere and leaving a visible ring of devastation that lingered in the sky.
Boros' attack unraveled like a frayed thread caught in a hurricane. What was meant to erase a world was undone in a single heartbeat.
Before Boros could even register what had happened, the shockwave reached him.
It tore through his body, shredding flesh, armor, and bone in an instant. Every ounce of energy he had gathered, every last fragment of his strength, was ripped away like dust in a storm.
A deep, resounding shatter echoed across the battlefield as the core of the ship was obliterated, reduced to nothing but light and scattered particles, as its only source of energy was eradicated, it too being linked shattered.
---
Boros, unable to stand, dropped to one knee. His body was so torn apart that what little energy remained was only just enough to keep death at bay. Blood matted his face. The brilliance of his power, once blinding, had faded to nothing.
Saitama stood nearby, watching in silence.
"Did I… lose?" Boros asked, his voice low, cracked. Confusion clouded his single eye — it was the first time in his life he had ever known defeat. The words tasted foreign.
He stared up at the figure that had done the impossible.
"What power… and… you were holding back. I just… realized it now." He coughed, blood spilling from his lips, splattering against the ruined floor.
"Do you think," Boros forced out, his voice trembling, "if I was given the time… could I catch up to you?"
Saitama's expression didn't shift. He scratched his bald head, thinking it over.
"I don't know," he said honestly. "But… I'd recommend you stay at this level of strength."
Boros gave a weak, rasping laugh. "Perhaps you're right. Ha… You're the only one to ever satisfy me in battle. Even after decades… searching."
He looked at the ruined skies above, then back to Saitama.
"Say… are there any others on this planet? Someone strong enough to give me a fun fight?"
Saitama thought about it, idly scratching his BALD head again. "As far as I can tell… I'm the strongest person on this planet by a long shot. Every monster, villain, whatever… they all go down in one hit. You're the first to survive a serious punch. That's a first for me."
He let out a slow breath, sitting down beside the broken alien, glancing up at the sky.
"Though… I haven't fought any of the heroes yet," Saitama added. "Maybe one of them could be a fun match."
Boros smirked weakly. Heroes… monsters… villains… It seemed this world still had something to offer.
"Maybe you haven't met some of the strongest ones yet," Boros muttered, a flicker of amusement in his fading voice.
Saitama shrugged. "Maybe."
...
The silence stretched between them, both of them sitting in the ruined landscape, eyes fixed on the clear blue sky, freshly parted by the bald mozes.
After a moment, Boros, his expression serious, broke the stillness.
"If you're not planning on ending me," he began, his voice steady, "would you mind if I stayed on this planet for a while? Earth, was it?"
He paused, then added, "Currently, I have nowhere to go, considering you destroyed my ship."
Saitama tilted his head, thinking for a moment before replying. "As long as you don't go around destroying stuff or killing civilians or heroes, I don't mind. Just..." His face shifted slightly, as though his face changed in art style.
"Don't give me a reason to punch you again."
For a brief second, Boros felt a flicker of fear. Saitama's aura flared, just enough to make him feel the weight of the power he was up against, but it died down almost as quickly as it came.
"Don't worry," Boros said, standing up now that he had fully healed. "I don't want to cause trouble or fight with you. After all, you're the only one who's given me a real fight. Even then, I'll need to do some training first."
He stretched to his full height, awkwardly glancing around as if realising something.
"Do you happen to know of any places on Earth where I could settle down?"
Saitama scratched his bald head, considering. "Well, with the way you look, you probably won't fit in any of the cities. The Hero Association will probably see you as a threat and try to kill you on sight."
He thought for a moment before coming up with an idea. "Hmm... You could probably live where I live, in City Z. The place is overrun with monsters, so adding another wouldn't be that weird."
That's a good idea Boros thought, pausing for a moment before asking, "And where is this City Z?"
Saitama pointed in a direction. "Over there. If you go straight, you'll find it. It's pretty easy to spot—just look for the abandoned-looking one."
He then sharply looked in another direction, as if hearing something. "You should hurry, though," he said, his tone shifting slightly, looking a bit stressed. "The heroes will arrive soon, and I'd rather not be seen with a monster. No offence, but they'd most likely dock my salary."
"Okay then. See you later," Boros replied, glancing in the direction Saitama pointed before leaping into the air, disappearing into the sky. ("team rocket blasting off" type of way)
While Boros made his way toward City Z, Saitama went off to find Genos, and they both joined the other heroes.
---
[Meanwhile, in City Z.]
Boros had arrived in the abandoned City Z and began to look around. Everything on Earth and i mean EVERYTHING was completely new to him. No planet he'd visited before resembled it.
"Everything's weird here," he muttered under his breath.
As he continued to explore, inspecting the buildings in search of a place to settle, he thought, The architecture, the streets, and the interiors are strange... and small.
"How do the people here live in such conditions?" Boros wondered, walking through the city.
At 2.4 meters tall, Boros encountered a few... difficulties.
Every door was too small for him, every bed too short, every table too low. He had already lost count of how many chairs he'd broken just by sitting in them, his weight proving too much for them. He had even damaged multiple door handles from the force he used to open them.
"Hah, I feel like I won't last long here," Boros sighed, looking down at his body, which was still in its released form. "I need to find another armour seal to control my power. I can't stay in this form every day—it causes too much destruction. But if I can't find one, I'll have to go through suppression training."
The thought caused him to frown, long before. he had tried to suppress his power through training and energy control... it went... a little explosive.
---
A couple of hours passed as Boros tried to adjust his overwhelming power, but it was an impossible task given his lack of experience with such a form.
Suddenly, he sensed someone approaching.
"Hey, Boros," Saitama called with a wave as he walked toward him, Genos at his side.
"Master, who is this monster? Do you know him?" Genos asked, clearly perplexed that his master seemed acquainted with a monster.
"Ha, you know the monster that attacked the city with the spaceship?" Saitama replied casually. "Boros is their boss."
"What?!" Genos shouted, immediately going on high alert, his weapons drawn in an instant.
"Yeah, we fought, and I defeated him," Saitama said, as if it were no big deal. "Since he's the only monster to survive my punches, I allowed him to move to City Z as long as he doesn't hurt anyone."
Genos, hearing this, immediately relaxed. His weapons clicked back into place, as if it were only natural for his master to allow such a thing.
Ah, as expected from Master. He can even befriend the most powerful of monsters, Genos thought, his admiration for Saitama growing.
He turned to Boros, introducing himself. "I'm Genos, Saitama's disciple."
"I am Boros, once the Dominator of the Universe," Boros replied, his tone calm but carrying an air of pride. "So... you're Saitama's disciple. You must be a worthy adversary to be tough under him."
"Let's have a fight, and you'll see," Genos proposed eagerly, intrigued by Boros' survival against Saitama. With this fight, I can better understand the gap in power between me and my master, Genos thought to himself before activating his scanning function.
Boros, ever ready for a challenge, grinned. "Sure, I never refuse a fight. I hope you're half as good as your master."
---
A/N comment below if you liked this or not, your support is like drugs for me, and is probably going to be one of the only reasons why I would continue with this.
also, hehe, secret love child.