Opm Stories

"What does power cost?" Y/N is quirkless. In a world of superhumans, that's not a good thing. She decides to become strong! After a few years of training (100...

After another battle, ending with a single punch. Saitama walks back to city Z carrying his bag of groceries. Feeling dejected from yet another day of defeating monsters...

❝ ꜱᴇᴇ ᴛʜᴀᴛ ᴍʏ ᴡᴏʀʟᴅ ʀᴇᴠᴏʟᴠᴇꜱ ᴀʀᴏᴜɴᴅ ɴᴏᴛʜɪɴɢ ʙᴜᴛ ʏᴏᴜ.❞ ❝ ʏᴏᴜ'ʀᴇ ᴀ ꜱᴀᴅ, ꜱᴀᴅ ʏᴇᴛ ᴡᴇɪʀᴅ ᴅᴜᴅᴇ. ❞ In a galaxy far, far away was the world of the Seven Deadly Sins, and our dea...

(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...

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...

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...

Another one of those types of stories where the Reader is Op! Y/n is a quirkless girl who is extremely overpowered! What will happen? Will she grow to gain more friends...

This is a story that takes place after destroying the house of evolution, where Saitama will enter the association of heroes and throughout his journey in it he will mee...

When a boy from Yang's past comes back, she's surprised to see just how much he had grown.

When Y/n the son of Saitama ends up being transported to a different world he is left confused. While trying to find out where he is he stumbles across the Fairy tail gu...

Saitama - A hero for fun who has inhuman physical abilities and can defeat enemies with ONE PUUUUUNCH. Genos - A hot, edgy cyborg that can shoot lasers and fire. Y/n...

(Diabolik Lovers x One Punch Man Crossover) Various! Diabolik Lovers x OPM! Reader "What do we have here? Plain-chan~?" "Tch, what are you staring at, Sho...

After Garou gets defeated by Saitama, he accepts his fate but Saitama let him know he has no intention of killing him. but the other hero's say otherwise and amai mask w...

(Y/n) (l/n) started training with Saitama at the age of 8. They're now 14years old with a happy life fighting off villains with Genos and Saitama. But what happens when...

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

People say that humans don't stand a chance when fighting demons and the demon will be humanity's doomsday. But that's about to change when a group of remarkable people...

after garou taught saitama 'the reversal of causality' he should've have died from god taking away his powers but instead, he was teleported to another universe. this s...

What if: denji trains like saitama and removes his limits. In this fic, there will be many changes in content compared to the original series. i don't own opm or csm I w...

Just one little change to the One Punch Man time line, can cause a gaint ripple. The girl Saitama saved was in fact, the younger sister of the S-Class her Metal Bat. Let...

80% of the world is born with quirks but not izuku. He's one of the lucky 20% that has no powers. He lives his life hoping to be a hero but once his idol crushes his dre...