Saitama stop becoming a Hero to avoid getting into large debt. Other low level heroes show a happy sign to his action. They manage to drop out Saitama from the Hero Association. However there are the things that they do not know is something bad gonna happen. With the absence of the most powerful Saitama, crisis is getting worst. (Chapter 1 Beta correction by Sailor Serenity 1000)

"Don't you think that punch was... a bit light, Saitama the hero?"

Saitama's dream of an all-powerful subterranean invasion isn't a dream, it's fact. He wakes up to subterraneans grabbing his face and throwing him through his apartment, and everything that follows as the Hero Association tries to save the fragments of the human race.

Hurled into the abyss, forced to deal with dark secrets and a distant past he can't remember, Saitama will need the help of his guardian angel Genos - the only angel left in the world - to unravel the mystery surrounding his death. Only together can they defeat the shadow-man who erases dimensions. And only in victory can Saitama regain the life with Genos that has been lost.

Genos is captured and reprogrammed to forget Saitama. How will the hero react when his partner becomes a villain? A story told in snippets.

Genos takes a lesson from Saitama a little too seriously, and Saitama is surprisingly okay with the whole thing.

A recurring nightmare shakes Sonic more than he'd like to admit. Rated M for blood and a lot of interesting language. First ever attempt at writing please be nice

Genos is watching a movie with Saitama when his Sensei suddenly says they can no longer live together. When Genos asks why, he soon finds himself spiraling into dark thoughts. How does this fight resolve?

Saitama wakes up to find silky black hair on his head like it had never left. What will our favourite ex-bald hero do when he has something back that he thought he'd love but end up hating?

Genos becomes fully human.

After the destruction of A city, comes the time for reconstruction. Everything is back to normal, but Genos notices a subtle change in Saitama. Something is wrong. And he's going to fix it. [Pre-slash - Genosai]

Pequeños Drabbles y One-shots dedicadas a la pareja SaiGenos :3

After Genos lost his family, it didn't take him long to find a new one. Rated M for depictions of violence and smut.

If he thought about it carefully, he didn't really need infinite strength to avenge his family; all he needed was the strength to trump the mad cyborg. Genos felt his determination wavering in the face of yet another humiliating defeat, and fortunately, his teacher and doctor were there to lead the way.

Spring /noun/ a. The season of the year between winter and summer, during which the weather becomes warmer and plants revive. b. A time of growth and renewal.

Inspired by the ending song. Genos sings and Saitama listens. I'm shitty at summaries, but please read it. One-shot. SaiGenos. I might add a second part if people take a liking to it.

Genos takes an injured Saitama back home, only to find the man cluelessly lives in a criminal nest. He's not okay with that. Continuation to Sensei. Rating just in case. Also on AO3.

A familiar villian severely injures Genos, forcing Saitama to deal with the aftermath.

After getting most of his body destroyed during battle, Genos comes back with a new sexaroid body. And Saitama can't help but want to 'examine' it... [Adapted from the doujinshi of the same name] Saigenos

Kira Kira Cupid, Goddess of Love, rank 100 B-class hero. She is having quite the problem finally hitting Saitama with one of her arrows so he can fulfill his destiny and live a happy romantic life with Genos.

AU. Saitama is a construction worker and Genos is a very smart, very gay architect student. (Heavily inspired by furaitsu on tumblr. Repost from AO3)

Genos notices that the minis tend to cling to Saitama, and it aches.

Action. Humor. Drama. Mystery. Romance. What if an OPM story had all these genres included in it? If you think there's more to one punch man than just action or humor, don't miss this story.

It's dark, and there's nothing much to do. Except talk, I guess. (rated M to comply with ff's guidelines, i actually consider this to be more of a T rating) (also had to change the title slightly because i hecked up) (ch 1 has been heavily edited)

My One Punch Man Secret Valentine submission. Just a general fluffy fic about two heroes in love.

A short drama featuring Genos, Saitama and Dr. Kuseno immediately after the sea king arc. Genes is feeling low after his defeat and is determined to become the best disciple by following Saitama's training routine at the beach. Nothing seems to go on well to poor Genos of course. One-Shot only.

Saitama starts to get fan letters, and even though Genos knows he should be pleased that people are finally starting to see his sensei's strength, he only feels bad and starts worrying that his sensei won't need him anymore. He visits Doctor Kuseno to find out what's wrong, and gets a surprising answer that leads to Genos trying to get Saitama to notice him as more than a student.

Roxas watches Luxord playing a game of futures with some of the Organization members. After the others are gone, Luxord explains the game to Roxas, and reads both of their fortunes as well, though Roxas can't quite accept that fate was never on the Organization's side.

Once a Threat level Demon monster was sighted in City J, Genos didn't think much of it...until that monster was stronger than anyone though. Core getting severely damaged, the boy was put into a critical condition. A coma. As Dr Kensudo works himself to the bone to get the young Cyborg to tip top condition, Genos relives the memories up to the point of meeting Saitama.

Saitama doesn't visit Bang's dojo. As a result, he isn't called for the emergency meeting of the Heroes Organization. How will the other heroes fare against Lord Boros without their strongest fighter by their side?

Genos bakes a cake and hopes for the best as he jumps to conclusions about Saitama's admirer, while Saitama just misinterprets everything. A Valentine's Day one-shot. Better description on AO3. Unapologetic genosai.

Genos always tried to keep a close eye on his master's enemies, and Lily was a suspicious one, no doubt. No Pairings.

Nobody needed Agents before The Problem started. But time passes. The world has grown more dangerous. Saitama might need a third member for his team, after all.

There are questions about Genos' past that was never answered. What happened to him four years ago? How did he become a cyborg?On his road to recovery, with the help of he doctor who saved him and a mystery apprentice, Genos learns through his own struggle. But in his quest to become strong, will Genos abandon his own humanity? Or, before all is over, will he discover his own path?

Saitama doesn't have enough clothes. Laundry day naked Saitama. Poor Genos. He can't handle sensei on display!

Genos is too stressed and Saitama is forced to adopt a cat for him. No really. He was forced to. (This turned into a oneshot collection what)

[Au,SaiGen,Yaoi] Una leyenda puede ser todo lo que pueda hacerlo creer y mantener la esperanza en el futuro pero tal vez el hombre que posee aquel don ni siquiera este interesado en darle ilusiones puesto que simplemente quiere ser un campesino normal pero el no puede escapar de su cabeza ¿Qué lo hacía especial? ¿Qué lo hizo el hombre de la leyenda?

Saitama already had his hands full with one Genos. Now what is he going to do with two more? (Inspired by Yandere Shoujo's story "Now in three flavors! and by the artwork "My Three Genos" by richie-duck which is the cover).

A little discovery of feelings, in which Saitama is not the dense one for once.

(BL/Yaoi) Genos empieza a tener sentimientos que están fuera de su entendimiento, pero para su sorpresa, no sera el único. GenosXSaitama. Amai MaskXMetal Bat. Speed of sound SonicXMumen Rider (Debut!)

One Genos was already a handful, now Saitama had three. No pairings. (shipping goggles are optional) Rated for language and some graphic themes.

... And airport security protocols stay the same even if you are a cyborg. Two parts

Saitama doesn't care about much, but losing the one closest to him is his greatest fear - how will he react when he is confronted with it?

Vengeance is what drives Genos to become stronger but has being Saitama's disciple changed that?

"One hundred years without resting, tick tock tick tock, Together with my grandfather, tick tock tick tock, Now the clock will move no more." Genos faces the bitter truth: he will not age and die just like normal humans do, while Saitama is slowly growing old and dying. Saitama/Genos fic, character death, please proceed with caution. I'm sorry for my bad English.

Teen angst was something Genos came late to the party for. No pairings.

Genos meets an infuriating customer. Coffeshop AU

When Saitama comes along with Genos to a mission, the two learn about an unknown force controlling the actions of civilians. now its up to them and two other s-class members to stop it... but will they be able to stop Saitama?

Nothing like a cool robot boyfriend with weird sexual modules to make you appreciate the modern age of technology, and no time like the present to figure out how to use that.

In which Saitama discovers that Genos is easier to please than expected.

in which saitama doesn't have money to buy a heater and wishes for one (and doesn't realize the person he's living with is practically one). —saitama/genos, saigenos

Genos recalls all of the emotions he went through in losing his family, and Saitama is there to help.

It's Saturday! What does it mean? It's the supermarket bargain sale! Follow the supermarket cashier's daily life as he provides heroes with what they need and struggles under the heavy debt generated by rent!

Saitama sings. Everybody else listens.

"Gymnopédie...? What does it mean?" Saitama (21), a teacher struggling with financial difficulties became a personal tutor for Genos (15), a mysterious problematic student. SaiGenos fic, personal tutor/non-hero AU, haired!Saitama, human!Genos, bottom!Genos. Please be wary of swearing. /author apologizes beforehand for the bad english. /English isn't my first language.

Era obvio que Genos sentía algo por su maestro pero no tenía alguna idea de como expresarlo o asegurarlo así que ¿Por qué no preguntárselo? Después de todo ¿Quién mejor que la persona a la que tanto estimas para saber que era lo que más deseaba? No es como si de verdad alguno de los dos supiera como hacer normal las cosas. [Saigen/Yaoi]

One of them has no limbs and the other is freezing. Both are trapped in a tiny hole with only each other and no one is around to help. No pairings. More Comfort than Hurt.

Saitama becomes aware of his growing feelings for Genos, but he's not exactly sure how to handle it.

A quick shopping trip with a happy outcome.

What happens when someone comes around that powerful enough to trade blows with Saitama? An unstoppable force meets and immovable object in a battle that will be so epic that words cant describe it.

Saitama and Genos celebrate Christmas with some interesting gift exchanges...(one-shot)

Saitama touches Genos in a way that only Genos would allow, because it's his teacher. No pairings.

Saitama has Genos say his name over, and over, and over. Rated T for a small bit of content.

What if Saitama and Genos met five years earlier before their own life-changing events happened? Would it be the same? SaiGeno/SaiFubu- Rated M for future chapters

Saitama gives up and lets Genos have his way with him. Rated for content.

Genos doesn't know why he can't seem to stand his teacher being out of sight for extended periods of time. No pairings but can be seen as one sided.

It's cold. That's it, that's the whole summary okay read this nice fluffy fic about Saitama and Sonic keeping warm with Genos. Its Fluffy I promise.

one cliched stormy night genos frets over his late master. only for saitama to bring back an unwanted guest into the home. genos has never been one to share the spotlight.

At what point did I start to feel this way towards you? The daily lives of an egg and a toaster. Saitama x Genos

It did sound nice, just staying in bed with his instructor for as long as they want. No troubles, no worries...just enjoying each other's company. And on a lovely Sunday morning, too. Saitama/Genos, oneshot. Slash.

Genos was visibly shaken, small beads of sweat covering his face, his body quivering as he still gripped the hoodie to his chest, and oh wait- he was turned on! Saitama gulped down a lump in his throat, suddenly realizing the level of the situation. "Genos...were you sniffing my clothes?"

Genos teaches Saitama how to make onigiri. Shōnen-Ai;SaitamaxGenos; One-Shot;

A One Punch Man one shot about Genos finding Saitama in a bad state after a battle.

Saitama has an itch Genos scratches. No pairings (unless you're really squinting hard)

Rumors are rumors. They're problems. Saitama is a hero. He has to deal with problems, and also, has to deal with rumors. Rated for some language.

High School AU. Saitama is the new student in Hero Academy, the most prestigious school in the world. At first look he looks like the average guy, with average looks and average everything. But you wouldn't expect that he's the most powerful and well-known hero in the whole universe, would you? Slash. Saitama/Genos.

Saitama meets his number one fan.

saitama is confused to his students displeasure towards some fanmail. now saitama has to become an actual sensei and teach genos something.

Perhaps, after Genos had moved in with him, he'd gained some weight? Regardless, as he stood before his bathroom mirror, this was an odd occurrence. (Fluffy as f*ck, and slightly endearing? Or creepy...hrm.)

They both agreed to meet again. (a short angst drabble) Saitama x Genos

Genos is infected with virus that took control of his body and ate his mind, driving him into madness. Saitama is forced to kill him, or...? Saigenos bromance fic, Evil!Genos imminent. This is gonna be confusing because of the interface screw...

The only reason why the world is still livable, is because someone always ends up having to clean up the mess that heroes and monsters made. Oneshot.

Saitama laments after Genos' death. Saigenos bromance ship. WARNING: character death, some swearing, angst (probably OOC), and bad English. /English is not my first language so...

Genos is in love with Saitama.

There was a line between admiration and obsession and Saitama was pretty sure Genos was starting to cross it.

Genos can't blush and Saitama doesn't know if he's upset by that.

"It's weird, noticing after two months how close they are, but he does and it's /weird/ and not entirely that bad when he thinks about it." In which suddenly living with someone is serious and not-so-serious business, and someone has to ask the heavy questions. SaiGen pre-slash, ridiculously wordy introspective fluff.

After finding a dimensional machine between the stuff of his moving in Saitama's house, Genos tries to fix it, failing miserably. As a result, he sends Saitama to a new world, where heroes exist with other name: Psychics.

( two stories together ) 1. Gareki gets upset and ends up hitting Yogi in the face accidentally ripping off Yogi's bandage, he snaps and turns into silver Yogi. Gareki is in for trouble. 2. Fluff. Yogi and Gareki are up late watching TV when the two end up horsing around. (Fanfics I wrote last year that I never got around to uploading. 1st one is unfinished..) Slash warning.

Genos had a nightmare. He was too scared to go back to sleep but luckily Saitama is there to comfort him. First attempt making a rated M fanfiction. SaiGeno pair.

Saitama/Genos 'Genos just might lose it if this is some big joke.'

Pre-Genos/Saitama. The two observe each other during a hot summer's day.

the new student and the school baddest delinquent. how cliche and adorable can you get. High-school AU. seme!Saitamaxuke!Genos. short and sweet. song-fic