What if Saitama wasn't the loner we are used to? What if he had a wife and son to liven up his life? Wait, his wife and son are monsters? !

The fourth and final part of Secter and Tatsumaki. With the Supremacy gone, Secter and his friends try to heal and move on all while keeping the peace on a troubled Earth. Follow the group as they enjoy fun and quiet times, support one another, develop their relationships, and face problems both personal and public. As everyone grows closer together, a new threat lurks beyond...

After an unexpected night involving a one night stand, Tatsumaki soon discovers that she is pregnant with Saitama's child. As the two struggle to find a resolution and decide on their priorities, problems arise with not only a monstrous cause but with a political one.

Fubuki has got a plan to get the guys to pay attention to her. LEMON

What if Saitama was evil instead of good? His goal is to become the most feared villain and want's to become a God level threat.

The world is shifting once more. New Neo Heroes have emerged and have set their sights on Garou and his family. The peace they once had is about to end, but the question remains. Is there something more to this than meet the eye?

More than once, Saitama has been able to heavily influence both heroes and villains, not with his impressive strength, but with his surprising wisdom. His words have the potential to be just as powerful as his punches, but the question remains: How would the story turn out if he used his words more often? How would a more vocal Saitama affect the heroes and villains he encounters?

continuacion de la carta, un mes despues de recibir la carta sitama se empieza a sentir extraño , enntonces le pide ayuda a fubuki, pero su hermana empieza a entrometerse sitamaxfubukixtatsumaki

Saitama and Tatsumaki: two completely different people, who both have odd lifestyles. Neither of them really know why they still hangout, but they do. And yet, both of them harbor their own issues. Tornado with her past and present relationships, and Saitama with his strength and emotions. Maybe, just maybe, it'll work. Initially posted on Wattpad under the same name!

Genos and Sonic become babies.

Saitama, a hero who has become alienated from his humanity, gets a chance to once again restore the humanity he had lost. Through the development of his relationship with Fubuki, he once again discovers human emotion, as he continues to get closer to her. However, unbeknownst to them, their relationship will have everlasting effects on Saitama's once broken limiter

"Are they ready?" "Oh course ma'am." "Did you alter their memories?" "All to your desire." "And their powers, are they complete." "Very much so." "Finally challengers, maybe one could have a chance against me...Perfect." This is a parody of one punch man where nine others with similar yet weaker destruction capabilities of saitama all get transported into his world

What if Saitama travels back to the past after defeating Lord Boros? Stick around to see Saitama attempt to navigate his way throughout this strange new reality.

Genos comienza a tener algunas fallas, pero de alarma cuando Saitama menciona que estan saliendo chispas de su pecho. Advertencia: Saitama x Genos, ligeramente angst. Este fic está inspirado en la canción Buttercup.

Garou broke his limiter during his fight with DarkShine. After training for three years, he comes back for the ultimate hunt- The Caped Baldy Saitama!

Everyone has a plan for themselves. They all are going on with their lives and yet changes are about to come for the whole clan! Not to mention, there's a growing concern in the mind of Amai Mask...BIG spoilers coming up in this story from the webcomic. Be warned!

Countless stories has been told. Some of them becomes popular, and some of them are forgotten. But when a story is forgotten, It Doesn't mean that it's ordinary. Extra Special thanks for ONE and Murata for the original OPM story, And big thanks for everyone who read it! This is a dialogue story.

Having an S-Class hero as your older brother is not easy, and no one knows that better than Zenko. Everything from shopping to being outright kidnapped can happen. However, despite all the chaos, Zenko and her older brother always manage to pull through. One-shots! Mostly unrelated.

This is the story of a new hero joining Saitama and Genos on their adventures. This story focuses on his experience of climbing his way through the ranks of the Hero Association alongside these two powerful heroes. Please feel free to criticize. I attempt to update the story with new chapters once or twice every month.

Saitama se enfrenta a algo que no puede solucionar de un golpe.

Ayano doesn't have any special abilities. She's not even a high ranking hero. But she has goals she's determined to meet. Thanks to a terrible (hilarious) misunderstanding, she now has a teacher that will hopefully help her reach these goals. Pairing is OC x Sonic. Intended to be a romance, but still funny. Written just for fun.

King had received the title of the S-class hero for things he didn't even do, but right now he has the opportunity to save people with his own power, which he will do now. Bad in summary, I know. Disclaimer (does not belong to me or OPM or any other character). My first story in english and in general, possible romance but who know and rated M for anything

Power can bring about fear. Fear can lead to yielding. Yielding can lead to mercy. Mercy can lead to Redemption. Redemption...can lead to so much more if given the chance. I do not own One Punch Man. It belongs to ONE! Co-author: IcySnowSage.

Sakura was one of Doctor Genus' experiments. After being saved by Saitama and Genos and their destruction of the House of Evolution, she joins them on their adventures. But there's something about the blonde cyborg that catches her eye and makes her feel things she hasn't felt in a long time. Little does she know, he feels the same way about her. GenosxOC. Rated M for mature themes

Trist, an engineer on Earth, finds himself in an unfamiliar city with unfamiliar people on an unfamiliar Earth. Soon after arriving, however, he finds himself with access to a "System". With new allies and enemies both having absurd and powerful abilities, he has no choice but to rely on this System to gain his own powers in order to survive, and possibly make a name for himself.