Saitama is pulled through a portal into the MHA Universe after being lured into a trap, which may or may not have involved Mexican food. Now, with the aid of teenage hero Deku, his fellow Class 1-A students, and other characters from both universes, Saitama tries to get home and eliminate villains old and new with the kind of power only One Punch Man has.

Wounded, lost, but growing, the lone wolf awakens in a land not his own of which more colorful and vibrant life thrives, but also young and weak. Similar to home, but so different, Garou must wander the lands and find his purpose in a world where heroes were frail and weak, where the pain of the powerless was ignored by the many. And he will change that world with wrath and fury.

Forcefully taken away from his world, Izuku Midoriya quickly comes to terms with the new one he finds himself in and eventually becomes the Number One Hero. As Deku continues to fight Villains and Mysterious Beings, he soon discovers that his old world hasn't forgotten him. OP Deku. One Punch Man World... for now.

Our favorite baldy willingly goes to the world of MHA after being informed by the god of humanity, that he will be greatly weakened in doing so, after being weakened, SURELY he's gonna get the fight he's been looking for, somehow that's a nope. Anyways, what kind of adventures is our baldy going to have in this land where the extraordinary is ordinary.

When the cyborg Genos was defeated by his first villain, he self-destruct himself to kill it since there was no one else to help him or stop it. However, the cyborg woke up inside an apartment, was human again, and is in a new world where the population is surrounded by eighty percent of Quirks. Now, the cyborg will have to adapt both to the new life and being human with a Quirk.

What if Inko believed in Izuku so he trained and dedicated himself to being a hero? What if he broke his limiter and was rejected from the hero course for being quirkless? This is a story of how Izuku Midoriya became a vigilante greater than any hero. The quirkless Deku who became the One True Hero. OPM deku, martial arts deku, Izumomo, confident deku, smart deku, vigilante deku.

Saitama junto con un grupo de héroes, quedan atrapados en un mundo donde también existen los héroes, pero no los monstruos ¿Encontraran la manera de volver o se quedaran para darles lecciones a unos estudiantes de una prestigiosa academia?

As a simple guy, Saitama liked his life even if it was boring as hell. One day, by mistake, he got involved in some interdimensional shit, so now he is in a weird place with thick girls... It wasn't that bad. [MASSIVE HAREM SHIT] [SHITTY COMEDY] [BAD GRAMMAR] Have a nice day.

Saitama and Genos have dealt with weird things happening to them before, but tumbling into another world after messing with an alien warp drive took the cake. Tensions rise as the powerful duo make ripples in the hero (and villain) society of Japan. How does everyone react? With exasperation and annoyance, of course! (Original title was Unforeseen Circumstances)

Izuku Midoriya had no quirk and had no one outside of his mother. And aside from his smarts, he didn't have anything. All he ever carried with him was the weight of insults and depraving speeches everyone gave him for being him. So when the heroes yell at him for saving Kacchan's life, he escapes to the beach to find peace. Instead, he found a chance to make his dream come true.

Life at UA had gotten pretty dull since the start of the third year. Actually, most of the class felt like there had been nothing to do since the defeat of Shigaraki and the league. So when UA is chosen as the venue for the “High-school World Championship” emotions run rampant. With the arrival of dozens of incredibly powerful students, how will class 1-A hold up?

What if Saitama and Genos ends up in Mustafu? What if Izuku's dreams to become a hero gets reignited by the hero for fun himself? (This story will become multiple one shots with no connection to the previous chapters whatsoever.)

A 15 year old orphan decides to become a hero. He trains himself until he breaks his limiter, and becomes the hero known as Saitama. He meets Genos, Fubuki, Izuku, Ejiro, Sonic, Katsuki, and so many more, and he attends the Hero Academy UA. With his friends' help, can the One Punch Man finally find purpose in his life? A crossover between One Punch Man and My Hero Academia!

It's said that without a strong Quirk, you couldn't be a great hero. That the exceptional were chosen, not made. That you couldn't deny destiny. Honestly, Saitama had no idea who came up with such rubbish, and he didn't care. Join him as he redefines what "overpowered" means, and becomes a pro hero along the way. [Combined universe with elements of MHA and OPM]

A certain Demon Cyborg while doing his daily chores in his Sensei's apartment ended up cleaning "trash" outside. While encountering a rather bigger "Trash" The Cyborg effortlessly dispose of it, but what came after is entirely beyond what the Cyborg could understand. [[ Will contain Genos in his current form with the dragonic arms and probably a certain Hunter ;) ]]

Los héroes de sus universos son aplastados y opacados hasta el día de su muerte. Cuando mueren son reclutados por el pero villano y crean un grupo "Anti-héroe"

All For One has been defeated, but at what cost? Students of class 1-A of U.A. are ready to take their Provisional Hero License Exam when a new participant joins the exam; a middle-aged man looking more like a strange All-Might than a newbie hero.

What happens when a certain hunter dies by the hands of his master, as his consciousness drifted into an entirely different world? Being put inside a certain green-haired boy during one of the most awaited events in Japan. Will chaos be wrought upon their world or will they be able to stop this monster of a child?

Everyone wants to be a hero, just like the Number One himself. Everlasting power is something all great people have in common as they strive for it. Well, what happens when you give that power to someone who doesn't really fit the bill that much? Shenanigans on both good and evil ensue, of course...

“I am that ominous future. Disaster Level: God.” After years of mistreatment and being forced to play the villain, Deku is expelled from high school for fighting. (read: getting beaten up) On the streets, Deku notices Endeavor abusing a certain icy-hot child, and rushes into combat. Join the Wolf Villain, Garou on his journey to tear down hero society and break his limiter.

Saitama and Genos crash at Dr. Kuseno's Lab, but get disturbed in the middle of the night by a monstrosity. From here, they get introduced to the lovely world of My Hero Academia, and they shatter all preconceptions of human limitations. No one can defeat him! But maybe, just maybe, that's not a good thing. Please enjoy and all reviews are appreciated!

The slime villain opens a dormant part of Bakugō's mind, and quickly comes to regret this decision. [Saitama is Bakugō]

What if Izuku Midoriya wasn't an only child? What if Inko had given birth to two girls before him that inherited her quirk, only on ultra-powerful levels. What if Izuku's older sisters were none other than Tatsumaki, the Tornado of Terror, and Fubuki, the Blizzard of Terror. Watch as Izuku goes through life with two caring, and sometimes overprotective, older psychic sisters!

Green eyes and hair runs in Izuku's family. He has it. His Mom has it. His Aunt's the Psychic Sisters Blizzard and Tornado have it. He loves his Pro-Hero aunts even as they barge in on his life at U.A., he just wishes they weren't so overprotective of him. BHNA / One Punch Man AU where Fubuki and Tatsumaki are his aunts and totally flung ALL Might into lower earth orbit for the S

An alien invasion is taking place in Deku's world, and he must fight to save the planet, joined by key figures from alternate worlds. Contains characters and elements from My Hero Academia, Girls X Battle 2, One Punch Man, Soul Eater, Dr. Stone, In/Spectre, Sword Art Online, and FLCL.