Tatsumaki Stories

Saitama is a man of many secrets. His full name is unknown, his true strength is unknown, nearly everything about him, is shrouded in darkness. But what happens, if th...

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...

A harpy from a far away land becomes a hero in a foreign country. Yeah. Think that's a decent enough description. YOU CAN SKIP THE FIRST CHAPTER CONCIDERING IT TECHNICAL...

|| In this AU Tatsumaki from one punch man is Izuku Midoriya's twin sister || So this will be my first fanfic, so if the writing is crappy I'm sorry but I hope you all...

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...

Another union bullied crossover

Holy god I have horrible story descriptions forgive me Saitama and Tatsumaki: two completely different people, who both have odd lifestyles. A guarded lifestyle, against...

(Y/N) who always thought that her life was miserable because of the power that she got. She met with Saitama when she was depressed deeply. After her parents got killed...

There were many changes from the sudden shift in the Earth's structure. The one continest has been divided in so many cities and there were so much techological advances...

Y/n can adapt to any situation quickly,thus he's good at underwater fights,mid air battles even someplace hot.

|-Dropped, Open for Adoption-| Just One punch man but what will happen if Saitama's feats get recognized? a little bit of romance and some changes, and the story will be...

A hero from different universe unknowingly arrives in the One Punch Man universe. He holds a dark past with him but wants to try to start over from scratch. (Summary cha...

3 Months Later. After the Monster Association Arc and the Awakened Garou fight, Takashi continues his boring life as Saitama and being a Hero for a hobby, along with his...

Ben Tennyson is in a world filled with superheros and it's up to him to save the day. Watch as he encounters psychic sisters, kung fu masters, cyborgs, and villains you...

Saitama, a hero for fun.....well mostly for profit found a weird boy who's got some....abilities and who might prove to be worthy of a fight.

As Saitama walked back to his apartment after defeating a monster with just one punch. He encounters a young girl lying on the streets. Rather than leave her there, he t...

"You don't need a super power to be a hero... you just need a brain." I don't own Iron Man or One Punch Man.

After the war with Boros, a mysterious person kidnaps everyone in the Hero Association and makes them watch memories of an under rated bald hero. He gives them a chance...

Garou x Reader Anime:One Punch Man. WARNING! MANGA SPOILERS! ⋆ ˚｡⋆୨୧˚　˚୨୧⋆｡˚ ⋆⋆ ˚｡⋆୨୧˚　˚୨୧⋆｡˚ ⋆ Your childhood friend happen to be the famous Hero Hunter. It's not like...