KingVessel: Some of you may think this fic to be nothing more than wish fulfillment. You'd be absolutely right to do so.


Chapter 01: Prologue of the Monarch


A-City was going through it's daily routine, the orderly chaos frequently caused humans doing as they did in their lives.

*BOOOM!*

Then it all came to a halt with the massive explosion that rocked the city's center, being followed by the appearance of the being that caused it. Aside from the purple skin, pointed ears, sharp claws and the two antennae dangling from it's forehead, the mysterious being looked a lot like a naked man.

Then the 'man' scoffed in disgust before leaping high into the sky, defying gravity while numerous orbs of energy thrummed into existence around him before being flung around into the city, each strike erupting into gargantuan explosions with each impact.


"It's close by!" A male worker of the Hero Association reported as they all tried to get a correct evaluation of the situation. "Who's available?!"

"We have word that Lightning Max and Smile Man are on their way." A woman declared.

"Get me that threat level assessment!"


Vaccine Man walked through his handiwork, relishing in the destruction around him. Of course, some of the humans strove to attack him, but none of them were strong enough.

As naturally, none could triumph the personification of Mother Earth's wrath.

Still, Vaccine Man paused at the sight of a small girl crying her eyes out. How had this bawling weakling survived his attacks? Well, no matter. She would die nonetheless.

Approaching her, the apostle's hand extended before growing immensely to the point that it was easy to crush her entire upper half within.

...had something not zipped past with the child in tow. Looking aside, the girl was now laid down unconscious, now behind another of those colorfully dressed humans.

"And who do we have here?" Vaccine Man demanded, a little wary as his hand shrunk. After all, this human had just displayed a speed far, far more superior to the ones that had preceded him.

"Me? I'm S-Class Hero that got just happened to be in the next city over." The human, dressed in a red uniform with a chest emblem with an unzipped jacket over it, crossed his arms and smirked. "Name's Monarch. Now please die."

"Quite the haughty human, I see!" Vaccine Man guffawed before glaring at him. "I, on the other hand, am-"

He never saw the fist that blew away his entire upper half.


-:|:-

Event Completed!

Achievement: Wrath of Earth? Meet Greed of Mankind.

Objective: Defeat Vaccine Man.(FULFILLED)

Bonus Objective: Defeat Vaccine Man without taking a single injury.(FULFILLED)

Bonus Objective: Do no harm upon any civilians during the battle.(FULFILLED)

Rewards: +100SP, +10,000EXP(/20), +1,000,000 Credits, + New Skill(s)

-:|:-

Alert: You have acquired new Skill(s)!

Energy Ball Projection: Your active capacity to create orbs of energy that can be used for various purposes.

-:|:-

You have Leveled Up!

Level Up: 97 → 98

-:|:-

Name: Saitama

Alias: Monarch

Level: 98

Title: Gamer

Class: Universalist(Superhero, Eromancer, Pirate)

EXP: 210/99,999

HP: 98,000/98,000

MP: 9,800/9,800

STR: 480(S) → 490(S)

VIT: 600(EX) → 610(EX)

AGI: 425(S) → 435(S)

SNS: 390(A) → 400(S)

CHA: 450(S) → 460(S)

LUK: 380(A)

SP: 100

Money: 3,007,000 Credits

-:|:-

Even as he was surrounded by destruction all around, Saitama pumped his fist in victory. "I have achieved the 'One Punch' victory!"

It'd taken him three years, but he'd finally reached the original Saitama's level! ...hopefully!

"Come in, Monarch." Saitama's phone immediately blared after he picked up. "What is the status of the monster?"

"Oh, I've defeated it." Saitama reported. "Set the monster's Disaster Level to Dragon and designate it 'Vaccine Man'. Also, there are still survivors around that will be needing medical help."

"Understood." The console reported audibly sighed in relief through their mic. "You rank might rise up again, thanks to this."

"Appreciate it." Saitama cut it off, before walking towards the monster corpse. Once he'd reached it, he kneeled and placed a hand against it. [Imprint]."

Immediately, a wave of darkness spread out from his hand to all over the corpse before coalescing and rising to form into a shadowy caricature of Vaccine Man just as commanded.

-:|:-

You have formed a {Dragon-Ranked} Shade

-:|:-

Please name the {Dragon-Ranked} Shade

-:|:-

"Hmm... He called himself Vaccine Man... but he was quite destructive towards his own creator with the explosions, wasn't he? The name of someone like you... should be Assault."

-:|:-

{Dragon-Ranked} Shade has be named {Assault}.

-:|:-

The newly named Shade fell to a knee and bowed, quiet as wisps of shadow wafted off his form. Saitama nodded in approval while he could see aircraft approaching. "Good. Disappear for now. I've got business to attend to."

Watching Assault sink into the shadows, Saitama wasted no further time in lifting off into the air and flying back home to Z-City.

As he did so, he reminisced on the events that had brought him into this world. Three years ago, he'd awoken right as the original had been in the midst of his beatdown with Crablante. Naturally, he'd fought back with nothing but pure survival instinct fueling him until he won.

Then he simultaneously rejoiced and broke down upon seeing that ugly-chinned kid when he finally realized where he exactly was.

Bad news: He was now a fictional character in a fictional setting.

Good news: He was the character who was one of the most famous for being overpowered. The Gamer ability that had showed up certainly helped, because there was no way he thought he could've gone through the Saitama Method with complete authenticity.

So afterwards, he'd retreated to Z-City and had located Saitama's apartment after a long while(because not only did he not get Saitama's memories, neither the manga nor anime ever showed recognizable routes.), then set out monster hunting immediately.

Like the original, it really had been an uphill struggle. It didn't help that the original had been unemployed and therefore needed a livelihood for sustenance. Thankfully, turning in monster corpses for bounties was already a thing even before the Hero Association got formed, albeit it'd ended up in him actually being scouted.

After sticking with turning in Tiger-level corpses for a solid year, the one time he accidentally showed up with a Dragon-level one...

Anyways, he was now Rank 4 of the S-Class Heroes, with the many special caveats that followed. Great pay, positive popularity(especially as he wasn't an asshole or jerk compared to most of his peers) and best of all, admin privileges.

Basically, the privilege to affect the workings of the Hero Association as he saw fit. He hadn't abused that yet, but he definitely would.

Later.

For now, he had different priorities.

"Gagkh! Gagkh! Gagkh!"

Very different priorities, indeed.

Saitama groaned as he tilted his head back, a hand on Shizuka's head as she 'tended' to him in her own car. Shizuka was the Hero Association worker who had been sent to scout him a year ago, the woman having kept in touch with him ever since. Even now, he almost couldn't believe that their purely sexual relationship had been born out of him simply asking "Hey, wanna fuck?" one boring afternoon.

He'd expected a refusal, or maybe even a slap. Not a full-face blush and nervous acceptance.

A-ranked CHA sure was something. Granted, the idea that he could get away with propositioning sex just out of any woman he met was met with a little trepidation... before he pushed it aside.

Why would it ever be a bad thing to get laid, as long as he kept it consensual? He'd even tried it on a lesbian he knew who'd blushed as well before firmly refusing.

Sure, things might be different now that his CHA was solidly S-ranked, but Saitama didn't feel the need to mess with an already good thing.

Especially when it had granted him a Class with a special subclass.

The Eromancer.

Just the thought of it caused the subclass description to show again.

-:|:-

Fleshly consummation and sex is more than just a physical act for the Eromancer, it being a joining of souls, bodies and energies. Hence, this Subclass focuses on possessing numerous sexual partners whether willing or unwilling, from which, after intercourse, the Eromancer drains a portion of their life-force and stockpiles it for use or gains power to immediately utilize. The more passionate and/or primal the sex, the greater the results gained. However, those who the Eromancer has copulated with, will be drained, physically, emotionally, and sexually, not unlike the unwitting prey of a vampire. Along with being able to imbue effects onto other beings and their surroundings, the Eromancer also possesses strong inclinations towards Biomancy and Animancy.

-:|:-

Basically, Saitama was now the proud owner of a Class that not only gave him EXP for sexual acts, but also opened up new options beyond just killing monsters for their EXP and Skills.

Mentally blinking away the prompt, Saitama finally allowed himself to tip over the edge, grunting as he cummed into Shizuka's mouth without warning. To her credit, Shizuka took it all with gusto, cumming herself thanks to his Class Skills {Gag Control} and {Erogenous Zoning}.

-:|:-

+100EXP(Groping) x3

-:|:-

+200EXP(Blowjob) x2

-:|:-

Shuddering as she rose back up into her seat, Shizuka sighed in content while licking her lips. "Are you satisfied, sir?"

"Very." Saitama honestly replied. Well, he could easily go for another round, but that wouldn't leave Shizuka's clothes in a manner that didn't indicate that she'd been fucked to heaven and back. "Thanks for your time, Shizuka. I'll have some Shades escort you out of Z-City."

Stepping out of the car, Saitama released a few Tiger-ranked Dragon Shades that crawled into the darkness beneath her car, waving her off as Shizuka drove away. Once she was out of sight, Saitama hummed as he continued his walk home.

He'd only made it past two blocks before his phone started to ring. "Hello?"

"Sorry about this, but a Demon-level monster is rampaging though D-City." The worker replied as Saitama could hear commotion from the other end. "It's a massive humanoid that's already making a beeline for B-City. Please handle it."

"I don't mind handling it, but wouldn't Tornado of Terror be a better pick to minimize the damage?" Even as he said that, Saitama was already high up into the air as {Cloth Master} transformed his civilian wear into his uniform. Just because he was right didn't mean he would be leaving Beefcake's potential Shade and Skills to be unharvested.

"...to be honest, you're less troublesome to us compared to her." The worker reluctantly confessed, causing Saitama to chuckle at how hushed his tone had gotten. Well, Tatsumaki was a jerk even on her best day.

"I'll go deal with it." Putting his phone away, Saitama immediately rocketed up towards D-City, air friction soon forming a whining corona of heat and sound as he approached the sound barrier.

Then he proceeded to break it.


Once he'd reached D-City, he took a minute to wince at the damage already wrought while Beefcake's titanic form kept on his destructive pace.

At least until he slammed into Beefcake's back and after grabbing tight to the protruding spine, began to lift the monster up into the sky.

"WHAT ARE YOU DOING?!" Beefcake roared, his voice causing immense ache in Saitama's ears as the giant flailed helplessly. "LET ME GOOOO!"

"You should really be careful of your word choices!" Saitama roared as he flung Beefcake several miles away towards the wilderness outside of the city. Sure he was durable enough to not even be knocked unconscious from that. But...

Saitama's hand snapped to the side to catch the screaming man just as he would've fallen past him, the elderly looking scientist still screaming as he hung by his lab coat. "Yo."

"Release me at once!" The man screamed even as he flailed. "Even mighty S-Class Heroes like you will fall to my little brother's power!"

"I'm actually here specifically for your brother's power." Saitama released the scientist to fall to his death before looking upon Beefcake as he rose up. "The Skill I'd get from him will definitely help against Orochi. Maybe even 'God', too, if I can manage it."

Beefcake roared as soon as he was up again, but Saitama didn't let him go even a single step forward. Summoning a few volatile orbs with {Energy Ball Projection} and pumped lots of excess MP into them, Saitama fired them towards Beefcake's limbs, which proved extremely effective in obliterating said appendages and sending him facefirst into the ground.

Approaching the crawling giant, Saitama noted with some surprise that the limbs were already starting to regenerate. "Quite the durable guy you are."

"I AM THE STRONGEST!" Beefcake roared as he punched his freshly regrown fist into the ground. "NOBODY IS STRONGER THAN ME!"

"On the contrary, there are many monsters stronger than you." Saitama raised his hand, summoning a massive energy orb before obliterating most of Beefcake's body with it. "A few humans too, if I count Tatsumaki, Blast and myself."

-:|:-

Event Completed!

Achievement: The 'Truly' Strongest.

Objective: Defeat Beefcake.(FULFILLED)

Bonus Objective: Defeat Beefcake in a pure contest of physical strength.(FAILED)

Bonus Objective: Do away with Oldface in a dismissive manner.(FULFILLED)

Bonus Objective: Do no harm upon any civilians during the battle.(FULFILLED)

Rewards: +80SP, +8,000EXP(/20), +800,000 Credits, + New Skill(s)

-:|:-

Alert: You have acquired new Skill(s)!

Titan Girth: Your active capacity to possess a form of immense physical size.

-:|:-


"I'm home." Saitama called out as he let himself in into his home. Compared to the apartment that the original Saitama had lived in, he himself had spared little expense with his S-Class salary and was now the proud owner of a large, six-story house with three large basements.

Needlessly lavish? Maybe. But there was room for more, like the person who currently lived with him.

"Welcome home, Boss!" A young woman skidded to a halt before him, her short brown hair ruffled from her movements. "You were pretty busy today."

"Yeah. Two Dragon-level monsters in one day." Saitama answered as the girl locked the door behind him. "What's for dinner, Umi?"

Umi, who would later become Swim the C-Class Hero in Canon, smiled good-naturedly as she led the way to the dining area. "I made some hamburg steak."

"I see." Saitama replied as he left her to take a shower. Fifteen minutes later, he sat to dine with her. "Thanks for the meal."

While eating, Saitama found himself reminiscing to how he'd ended up in such a relationship with the girl living with him. Just a few months ago, he'd run into her after a day of work at a hardware store she part timed at. He hadn't recognized her at first, until a monster had popped up and he had a first row view to seeing the girl whip a trident out of nowhere to kill the Wolf-level monster.

Really not bad for a girl who had a really sucky mother when he'd later scouted her, which sadly explained her timid personality contrasting her innate talent.

Really well for a girl he'd initially been interested in for her cute looks, but was now the sole member of his Party that always received 20% of every EXP not gained as an Eromancer.

Speaking of which...

-:|:-

Name: Umi

Alias: N/A

Level: 20

Title: Cute Acolyte

Class: Mage

EXP: 110/21,999

HP: 20,000/20,000

MP: 2,000/2,000

STR: 200(B)

VIT: 190(C)

AGI: 225(B)

SNS: 100(C)

CHA: 145(C)

LUK: 80(D)

SP: 10

-:|:-

Titles[Cute Acolyte]

Skills[Hydrokinesis (Sub-Skills: Aquatic Adaptation, Hydraulic Propulsion, Hydrogenesis, Water Ball Projection, Water Bomb Projection, Water Armament, Water Infusion), Housekeeping Mastery (Sub-Skills: Cleaning Proficiency, Cooking Proficiency, Massaging Proficiency, Sewing Proficiency), Trident Proficiency]

-:|:-

She really had went all out with just the three Water-related Skills needed to form a Grand Skill, huh? In just two days, she'd gone and made three new Skills along with another Grand Skill, even if it was just for being his live-in maid.

(He didn't know which was worse: The fact that he'd all but bought Umi from her mother, or the fact that Umi had never complained or made any indication of wanting to leave.

Had his high CHA charmed Umi? Or was her previous life much worse than her current one?)

"Ah. By the way, Boss." Umi suddenly spoke up from his side. "The 55th Hero Certification Exam got announced. Do you really think I've got what it takes to enter?"

"Of course, you do." Saitama honestly replied. "You'll make B-Class easy. And if not, I'm sure you'll rise up the ranks quickly enough."

"Still, it's still a little nerve-racking." Umi placed a hand against her chest. "After all, I'll be debuting as the first member of the Monarch Brigade. Every group formed by a S-Class gets heavy scrutiny, and I'm not sure-"

Saitama cut her off with a flick to her forehead. "Don't doubt me when I tell you that you're strong. The Hero Association has very few people with actual superpowers. Granted, they're not likely to be tested in the exam itself, but even a few weeks worth of work will have you being promoted faster than you can imagine."

"...well, you've rarely been proven wrong, Boss." Umi surrendered before collecting their empty plates, Saitama's gaze following her hips as she went. "Still 17, remember?"

Saitama tsked as he looked away and went up to bed. Even as much as he liked sex, he wasn't low enough to go beyond looking at underage girls.

Still, he couldn't wait for her 18th birthday to come around.


"The surface is ours! You surface dwellers must die!" Pausing in her morning jog, Umi stared at the hulking monsters that had just popped out of the ground before her, them being earth-like in composition while the obvious leader had reddish magma swimming through his body with all four of his arms wielding magma blades. "I am the Subterranean King! Surface dwellers, prepare yourselves for- GWAGH?!"

Having just attacked him with a Water Bomb that knocked him a few steps back, Umi didn't let their shock fade away enough as she immediately charged and leapt over the sputtering monster and did the same for his stunned underlings.

Satisfied at how they'd all immediately died from the compressed Water Bombs blowing apart their heads, Umi turned just in time to dodge and flip back away from the hissing blade that nearly bisected her.

"I see that the surface does have worthwhile warriors." The Subterranean King growled as he hefted his swords, steam rising off as the magma on his body burned hotter in preparation for the battle. "I am the Subterranean King. Identify yourself, female warrior, so that I may know the name of my first significant conquest up here."

"I am Umi..." Entering a stance of her own and quietly frowning at how her own weapon wasn't at had, Umi prepped up her {Water Armament} instead, the water armor hopefully granting some protection against her opponent's heat. "...and I'm not your's to conquer. That right belongs to Boss three weeks from now."

The two moved at the same time, Umi dodging his overhead swipe to dig her fist into the Subterranean King's gut while kneeing his lower right arm away. Feeling her fist cool and break through his rock skin, Umi utilized {Hydrogenesis} immediately, rocketing the monster several feet away immediately.

To the Subterranean King's credit, he recovered immediately, a massive plume of earth and magma erupting as he shot back towards Umi and swung all four of his swords from differing angles.

Umi barely managed to dodge two of them while blocking the other two, holding back a scream as the blades easily cut through her {Water Armament} and scored painful lines across her stomach. Thankfully, the armor had at least done it's best to keep the wounds at skin level and seemed to be already healing her.

But...

"Magnificent!" The Subterranean King praised as he kept slashing at Umi while she desperately kept at dodging. "Not even the greatest of our warriors is as nimble as you! And that deceptive power in your small size! What a shame it is that you were born as a puny human!"

"On! The! Contrary!" Finding a lull in the Subterranean King's attacks, Umi leapt up at his face and landed a powerful uppercut that snapped his head back and left his chest open for a {Water Bomb} infused roundhouse that sent him careening into a car in the distance. "I'm quite happy to be human."

Acting quickly, Umi immediately projected a massive orb of water and smashed it down upon the Subterranean King, keeping it stable while the monster flailed within.

Then the water started to boil rapidly until it exploded into a massive burst of steam.

"...a good answer!" The Subterranean King roared as he bursted out of the steam, his swords missing while his magma seemed to have faded a bit. "Then you must simply die with that pride as a warrior!"

Umi met the charge head-on, catching two of his upper punches while kicking his lower arms downwards as she used her momentum to flip over him. Still holding onto him, Umi shouted as she flung the monster against a bridge pillar.

"[Water Lance]!" Umi shot her fist forward, water supercompressing before shooting forward into a drilling lance that pierced through the monster's stomach. For a second, Umi allowed herself to believe that she might have won...

Only for the Subterranean King to cackle and charge at her even as he worsened his fatal injury. "Don't you dare you think I'm so easy to kill, human! I am-"

Umi didn't let him finish, immediately twisting about and swing her arm upwards as she did so. The end result was the Subterranean King immediately dying as he slowed to a pause, his upper half splitting apart as he finally collapsed.

Umi panted heavily as she leaned against the nearby fence, wincing a bit only to blink in confusion when she felt her exhaustion and injuries immediately fade away.

"Way to go, Umi!" Boss called out as he landed before her, his smile proud. "And you were thinking that you might be weak? The minimum Hero Class to be believed capable of handling a Demon-level monster like this guy is B-Class."

Umi's jaw dropped as she turned to regard the defeated monster. It had been a Demon-level threat?!

"No way..."

She couldn't be that strong so quickly... right?


Ignoring the flies as they flew about the corpses, Genos instead finished the scanning of the corpse of the cow. Then turned to regard the city in sight, already deeming it the next likely target for the culprit.

Satisfied at the conclusion, she began to make her way towards Z-City.


Preview: How unbelievable! I, Vaccine Man, to be defeated in such a humiliating manner?! Now he's using my likeness as his slave?! Next time on 'Hedonism of the Monarch', : 'Assessment of the Cyborg'. Wait, you're saying that there are actually humans disgusting enough to replace their body parts with metal-