Onepunchman Stories

When Saitama suddenly ends up outside of Wall Rose, he quickly becomes humanities' savior. With no way of getting home, he accepts his role... kind of. IMPORTANT NOTICE...

(y/n) (l/n) is the adoptive daughter of an over powered quirkless 31 year old human, Saitama. She always looked up to her father, saving the world while hiding behind th...

F! Reader Insert ; No quirk, but she still wanted to be a hero. 100 daily push-ups, sit-ups, and squats, plus 10 km of running for just about 2 years. Without knowing, s...

The S-Class and a few others watch One Punch Man. This on Fanfiction.net too.

What if a man from our world takes over Saitama's body? Will he destroy all Monster he faces, or will he do the opposite? Let's join our Mc adventure in this beautiful w...

Y/n falls into a portal bringing her Genos and Saitama her father to a different world. What happens when people begin to obsess with this powerful girl?

You are Saitama's best friend but the problem is: You pay the rent

After Mew, the Mythical but playful Pokemon, finds a dimensional tear in the Pokemon World, it attempts to seal said tear on its own. The result had not only sealed the...

What if Saitama's Achievements were recognized? Well, that's exactly what happens here. Read if you wanna know. (I suck at description making.)

( BNHA/MHA Various x OPM! MC ) In a world of superhuman beings and quirks, Nana Saitama was, to put it bluntly, extremely ordinary. One day, she saves a green-haired boy...

You remember the Tournament of Power from the anime hit series Dragon Ball Super right? Well imagine that but instead of different universes participating its going to b...

Saiki k x OPM Crossover. Saiki wakes up to find himself in a completely different universe with monsters, heros and villains. With nowhere else to go, he ends up staying...

"Mrs. Rose, I have a question," "Hm?" Rose looked away from the sink, where she was doing the dishes, and turns her attention to the cyborg, "Su...

Edit: As you may or may not know, this story has been discontinued. I no longer wish to associate with it and it's stupid humor. Don't ask me to continue, because I won'...

The omni-king also known as zeno is the supreme ruling god and creator of all existing lifeforms, Anyway he now had grown really bored of his daily-plain unenjoyable lif...

You were normal. You had a normal job, normal apartment and a normal life, but every night was the same. When you went to sleep all you saw was him...who is this mysteri...

Daniel Xavier-Midoriya, formerly known as Xander Arc-Kent, was the son of Superman (Justice Lords) and Wonder Woman (Justice Lords), but was hated both his parents, the...

In a world where 80% of the population has quirks the other 20% doesn't. izuku yagi, the son of the number one hero was one of those 20%. Izuku Yagi's life was a nightm...

DISCONTINUED! But is being rebooted.

Behind every great man is a great woman, that's how the saying goes. But how can that apply to our favorite bald hero? Simple, what if he had someone beside him even bef...