I, without any personality, become a hero!

All Might was astonished to find that his physical condition was rapidly recovering, and even old injuries and hidden dangers in his body were slowly healing.

"This is 'super regeneration,' at least it means I can spend the rest of my life with a healthy body."

With a gentle smile, Midoriya, a man who has lived for over a hundred years, has reached the limit of his physical abilities, so "Super Regeneration" is useless against him. However, for All Might, a monster in terms of physical strength alone, "Super Regeneration" can also heal the serious injuries he suffered five years ago.

"I won't give you any other 'quirks,' lest you finally retire and then go back to being a hero."

Izuku Midoriya, who offered insightful commentary, didn't want All Might to run off and act like a hero before he had fully recovered. He believed such matters should be left to the younger generation.

"Now that the last things are done, I'm ready to leave."

"Um... wait a minute..."

As Izuku Midoriya was about to turn and leave after saying goodbye to All Might, All Might suddenly called out to him and stopped him.

"Perhaps I'm saying this a little late... but..."

"Izuku Midoriya, you have become a wonderful hero!"

Midoriya slowly turned around and looked at All Might, but his face showed a helpless expression. He pressed his temple with his right hand with some distress.

"A hero... please don't call me that, after all... I am the most wicked and terrifying 'Demon King'."

"Let others take on the role of hero."

At this point, Izuku Midoriya went to the United States.

—————————Preview—————————

Three months later, in Seattle, USA, Izuku Midoriya is currently in this place.

"I've met both my parents, and it seems that my mother has adapted to living in the United States with my father."

Izuku Midoriya nodded in satisfaction. The first thing he did after arriving in the United States was to go to New York to meet his parents, although Izuku Midoriya once again burst into tears for quite some time.

"But speaking of which... it's amazing they managed to ambush me at the airport!"

Thinking back to this, Izuku Midoriya was terrified. Just as he was about to board a plane to the United States, someone unexpectedly blocked his way at the airport.

"Midori-kun!"

"Midori-kun!"

"Little Green Valley~~"

It took quite a while to completely explain and appease them. Midoriya almost missed his scheduled flight. After asking the girls, Midoriya Izuku learned that he had been ambushed.

"Xin Cao... you're ruthless!"

He relinquished his leadership of "Dark End" to Shinso, who then retaliated by revealing Izuku Midoriya's flight to the United States to the girls at U.A. High School, completely ruining Midoriya's life.

"Never mind... we'll be there soon."

Looking out at the city, Izuku Midoriya had walked all the way to Seattle. During this time, he had been traveling all over the United States to see people’s lifestyles. After all, only by being well-informed could he find a better future for Japanese society.

As for why Midoriya came to Seattle, a city in the United States... it was naturally to witness All Might's school in the United States. In order to escape the persecution of All For One, All Might was sent to the United States to study by "Gran Torino", and he graduated from the world-famous "hero school" in Seattle.

"This is a place I've always wanted to visit, and I finally have the chance to make my wish come true!"

Midoriya was secretly quite pleased with himself, as he had always dreamed of visiting the "hero school" in America where All Might had studied.

Just as Midoriya was about to set foot in a city like Seattle, a sudden change occurred... The astonishing scene that unfolded before him was that the space in front of him shattered as if it were a mirror.

Like a shattered mirror of space, a void appeared with a swirling vortex of spacetime, and a creature that clearly wasn't human appeared before Midoriya... Although, due to the existence of "Quirks," there are plenty of non-human beings in this world.

It brought Izuku Midoriya an extremely powerful sense of pressure, a terrifying feeling that he had never felt even from All Might. In fact, Midoriya felt somewhat familiar with this feeling... It was so damn familiar!

"I've finally found you, my master!!"

"Huh?!"

Midoriya was momentarily stunned by the words of this inhuman being. However, the humanoid creature composed entirely of nothingness and darkness began to move. It grabbed Midoriya with terrifying speed and then suddenly pulled him into the space of the shattered mirror.

The space instantly healed itself, as if nothing had happened.

Chapter 1 Weird, come on!

"Where is this? And who are you? What do you want?!"

Izuku Midoriya was completely bewildered by the three questions he asked. After being pulled into the shattered space by the humanoid creature made of nothingness and darkness, Midoriya felt dizzy and disoriented, as if he were traversing countless galaxies. It took quite a while for the dizziness to subside.

With a clear mind, Midoriya looked around. All around him were large laboratories made up of high-end mechanical equipment, and the guy who had captured him was talking to an old man in a white coat.

"Thank you, Doctor! We finally succeeded!"

"Is he the person you're looking for? You really went to a lot of trouble."

After Midoriya asked the question, the ethereal, dark humanoid creature appeared before him, bowed apologetically, and began to explain:

"I'm sorry, my master! It's a long story... please let me tell you slowly."

"Tell me your story quickly!"

Rubbing his forehead, Midoriya felt a strange sense of familiarity with the ethereal, dark humanoid figure; otherwise, he would have already unleashed a barrage of steel wire attacks.

"Please give me at least 5 minutes!"

And so, the humanoid creature of nothingness and darkness began to recount the past.

----------------

Three months ago... the "Messenger of Hell," after being sucked into a black hole, descended from the sky, with a countdown of 5...4...3...

This is Z City, an unfortunate city frequently plagued by monster disasters. According to statistics from the Hero Association, this city suffers from "Demon" level... or even "Dragon" level disasters every now and then, but they always disappear completely after a period of time. There are also rumors that the "King of Monsters" lives in this city.

The "Hell Messenger" that fell from the sky landed completely on the ground, and at that moment, a "bald man" who was taking advantage of the supermarket's big sale to buy eggs appeared at the scene of the panic buying.

2....1....0!

The "Hell Messenger" erupted completely, and in an instant, the black mist spread exponentially, covering the entire city of Z. Any local citizen who accidentally inhaled or came into contact with this black mist immediately fainted and collapsed.

This wouldn't normally cause much harm, but when a bald man inhaled the black mist, he simply pinched his nose and complained:

"What is this? It smells awful!"

Suddenly, in this special world, the laws of life were activated for things with strong emotions. The black mist covering the entire Z city began to pulsate, a sign that a terrifying life was about to be born.

The black mist, gathering like a tornado, condensed all the terrifying dark things covering the entire city of Z before this "bald man," and a void, dark humanoid figure appeared before him.

"What did you just say?!"

Pointing to this bald, ethereal, dark creature, it has a humanoid form, but its vast difference from ordinary people is immediately apparent. It is a special being that only appears in this world and is named a "monster".

"Huh? You were the one who released that really smelly stuff just now."

Baldy found the culprit behind all this. Just as he was about to pay for the discounted eggs he had bought, the cashier inhaled black mist and fainted, which made Baldy, who had been waiting for a long time, very angry.

"That's right! I am the ultimate weapon created by Master, a terrifying being named 'Hellbringer,' yet... you 'bald guy' only said 'smells bad'!"

The "Hell Messenger," clearly furious, felt its master's expectations and faith had been insulted—an absolutely intolerable act. It immediately pointed at the "bald man" before it and angrily rebuked him:

"Let's settle this once and for all! Today I'll show you, 'bald guy,' what the horrors of hell truly are!"

However, no sooner had the "Hell Messenger" finished speaking than a fist wearing a red glove blasted its entire body into oblivion. The "bald man," whose face was contorted, still retained the posture of throwing his right fist.

"What baldness! I just have a little less hair, are you blind?!"

The "Hell Messenger" who called out "bald head" twice in a row clearly committed a major taboo and was instantly killed by the "bald head" in front of him with a single punch, leaving no trace of his body. However, this matter did not end there.

The tornado reappeared in front of "Bald Head", and the ethereal, dark body of "Hell Messenger" was revealed intact.

"Muda! Muda! The power my master bestowed upon me is an immortal body, you 'bald guy' cannot kill me!!"

The "bald man" had obvious blue veins on his bald head. Without saying a word, he punched the "Hell Messenger" and made him disappear into thin air.

However, not long after... the "Hellbringer" reappeared before him...

..............

"You bastard, why can't I kill you no matter how hard I hit you!"

The bald man looked at the strange man in front of him with some annoyance. The situation was not much different from what he had encountered before... Why could this strange man be resurrected no matter how he was killed? This was too strange.

"You 'bald guy' are pretty amazing, aren't you? You've taken me down 30 times!"

"However, Muda Muda! My immortal body is a flawless existence created by Master. As long as bacterial life exists in this world, I will never die."

The main principle of the "Hellbringer" is to use the engulfment of bacteria and microorganisms to achieve explosive growth and reproduction, which can be described as a terrifying weapon that combines biology and biochemistry.

And it seems that the "Hell Messenger" is evenly matched with his opponent. Although he is always instantly killed by the "bald man" in front of him with one punch, this guy is able to live as fast as he dies.

"You bastard, my name is Saitama, stop calling me 'Bald Head! Baldy!' all the time..."

Saitama, utterly disgusted by the seemingly indestructible monster, was met with indifference from the "Grim Reaper," who casually remarked:

"What does it matter? I'm bald too."

"Oh, it really is?!"

It was only then that Saitama noticed that the monster in front of him was composed entirely of nothingness and darkness, and its head was also a bald patch of darkness... In a sense, this guy had quite a bit in common with him.

"No! My name is Saitama, how long are you going to keep bothering me?!"

"Back then, it was a fight to the death! Master believed I could defeat the world's strongest 'hero,' so I wouldn't stop until I achieved that goal!!"

"This is so annoying... Wait, how do you always manage to resurrect in front of me?"

Saitama, whose head was about to explode, was considering how to deal with the strange man in front of him when he suddenly realized something he hadn't noticed earlier.

"Since there are microorganisms and bacteria around you, of course I can revive right in front of you."

"I see, I see!"

With a sudden realization, Saitama grabbed the "Grim Reaper's" right hand and hurled it away with tremendous force. Instantly, the guy transformed into a star in the sky and vanished completely before Saitama's eyes.

"Damn it! They even have this trick up their sleeve! I'll be back!!"

"Finally... peace and quiet!"

Now that he was completely free, Saitama was encountering such a troublesome weirdo for the first time.

Chapter 2 Green Valley, come on!

After giving a brief explanation of "Hell Messenger," Izuku Midoriya rubbed his temples in exasperation, feeling that he first needed to reshape his worldview.

"You mean... you're a 'Messenger of Hell' that I created?"

"That's right, my master!"

"Is that so...?"

After Izuku Midoriya nodded, he said to the elderly man in a white coat standing beside him:

"Doctor, this must be the portal you created, right? Could you open it...? I need to go back and calm down."

"No! Master!!"

They quickly grabbed Izuku Midoriya's "Grim Reaper," while the kind-looking Doctor shook his head with a smile.

"The 'Hellish Monster' is right, and the world teleportation device just overloaded and broke down; it might take a long time to repair."

"Alright... I'll believe you for now."

With his forehead covered, Izuku Midoriya could only temporarily accept this absurd situation since he had no way to go back. The first thing he needed to figure out was something.

"Why did you send me here?"

"Of course, it's to prove your greatness, Master! I need you to enhance my power so I can defeat that despicable 'bald guy'!"

"Bald guy....."

Regardless of who the bald man mentioned by the "Grim Reaper" is, Izuku Midoriya himself was very interested in observing the environment of the research lab, which had a very advanced science fiction style.

At that moment, an unexpected visitor appeared in the laboratory.

"Doctor, I'm back! 'Hellhound' is still here! And... who is this?"

This is a blond, handsome man, most notably his arms, which are clearly made of metal mechanical locks.

"It's Genos. It's amazing that you came back today completely unharmed."

"Don't say that... It's not like I get maimed every time."

Genos, who was being teased by the doctor, could only weakly refute the criticism. Meanwhile, Izuku Midoriya, who had been watching the scene closely, suddenly appeared beside Genos as if by teleportation, grabbed his arms and examined him closely.