Stranded in an unknown world, but not alone, Saitama and his friends lived their lives in a strange world. They found happiness and peace, but an old evil returned, birthing new evils and challenges for the next generation. Co-written with i4md347h, the author of The Hunter Amongst Villains. Current Progress: VOL.6: COMPLETED. Now available in AO3 under the pen-name OldWanderer.

An autistic anime/ SCP mythos fan who is also a bundle of frayed nerves and poor social skills, finds himself in the SCP universe with the powers of Anime's strongest hero! Now he has to navigate his new life as one of the strongest SCPs while keeping his social anxiety in check OC SI x Female SCP 049

For all his heroics, Naruto was glad he wasn't named Friendship Man. His girlfriend would have teased the crap out of him. One thing was for sure, though. Saitama would not be getting peace and quiet anytime soon. Fluff, Romance, Humor, [AU]

The Man Of Tomorrow, Superman, has died and has been placed in the world of One Punch Man! With how much corruption and darkness roams in the world, perhaps the Last Son of Krypton is just the right symbol of hope they need! Join on his adventure as he makes new allies, new friends, and perhaps find some romance along the way! What will happen! Only one way to find out!

An average day in Zootopia, until a hero arrives to save the day with unimaginable stregnth

Most demigods would kill for the power to destroy monsters with one punch, but as Percy Jackson punches monsters into dust, all he can do is groan in annoyance. Until he meets one Thalia Grace. This is a tale of Heroes and Monsters. Rewrite of One Punch, and a Hurricane. Pairing: Thalia x Bianca

A Hero Born with unfathomable luck, A hero born with greatness thrust upon him. This isn't a tale of a man taken from another world and dropped into another, nay, this is a tale of King. A man born with greatness in his future, he may not believe it, but he isn't the Hero Japan Needs, King is the Hero Japan deserves.

what if Boros gave Saitama all his knowledge? What if Saitama took after Boros and chose to conquer the multiverse? and why is the portal blue?

Everyone has a plan until they get punched in the face. When two fists cross paths, a story is born! A Certain Magical Punch Remake begins NOW!

this story revolves around the Entirety of Class 1A being isekai'd into the one-punch man world. The story contains light spoilers post-season 6. The story goes up until right after the psycho sister's arc so I guess spoilers for one punch season 3 as well. the alternative path on A03 is to be uploaded later here.

Time To Run Some Test Outside Of The Lab (I Own Nothing)

a young man gets into a car accident after getting into an argument over who's going to do the laundry. After meeting God he is set to be reincarnated into Young Justice's world. with lady luck on his side, he managed to get saitama's unimaginable strength. Watch as our Hero for fun decimates his opponents while having the best time of his life. -Not SI-

The champion might have perished in his world, but turned out, that's not the end. A new mission awaited, along with things to ponder about. This time, there were also companions he would stick with and satisfy his desire upon. Hmm... How rewarding.

Garou find himself tossed in the MHA universe, in other to live without being branded a villain, he strikes a deal with this universe's hero association to teach at a school what could go wrong

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.

Goku, the legendary warrior from Dragon Ball Z, arrives in the city of Z-City to test his strength against Saitama, the One Punch Man. Saitama, intrigued by Goku's reputation as one of the strongest fighters in the universe, accepts the challenge and the two begin an epic battle.

The Justice League are happy that the world has now tons of heroes to protect the world, but now bigger threats are coming and danger is at every corner. However, one certain hero gets the champions of Earth by surprise, a bald guy with a cape which might have powers that could rival Superman. Can Saitama and his friends get along with the heroes from the past?

Tomoko finds a Manga of One Punch man and after falling then face-planting into the manga, she wakes up in the world of One Punch Man. What does this all mean? With the cities that are in constant peril, she now discovers that facing the crisis in her life doesn't seem so bad now, and with a roommate that's One Punch Man himself, can Saitama help Tomoko?

Look, it's not MY fault the game bugged when I clicked two different worlds at the same time. Actually, I'm the victim! Getting thrown back and forth between One Piece and One Punch Man like a ragdoll isn't exactly what I call fun, and having a glitching out System doesn't make it easier! Well, guess I can't complain now. Might as well enjoy myself!

Year after year Izuku always listen that he is weak. Month after month he is always behind others. Week after week he is beaten. Day after day he thinks if it will end. Till at one point his hope was broken. Till he start to get more mature. Till he decided to beat his way throught the top one hero.

Inspired by the Youtube video of the same name. In a desperate attempt to overcome his cowardly heart once and for all, Luigi goes to train under one who has conquered fear itself. However, while he's gone, things take a turn for the worse in the Mushroom Kingdom. Upon his return, Luigi will learn that all it takes to conquer fear - and that which causes it - is One Jump.

Apesar de que saitama acaba con cada enemigo de un golpe... cómo podrá enfrentar una situación donde un grupo de mujeres lo colma de algo alienígena para el "Amor"

The Akatsuki, A band of the most dangerous group of individuals in the known world managing to gain funds and infamy due to their overwhelming power. When at last they gathered for their true goal, the Jutsu given to them by Madara goes horribly wrong, and they are transported to a world that is much more organized yet more wild.

AU. Azuma was running to get to school on time when he was thirteen until he was suddenly attacked by a monster and a man died trying to save him, but Azuma awaken a legendary power of a powerful Saiyan that has turn him into a powerful warrior to become a hero helping the world while enjoying life as he can with his harem. Lemon. Azuma OP. Do NOT own either series. MAXIMUM POWER!

Who can raise such unnatural children?