One-Punch Man backdrop
One-Punch Man poster

One-Punch Man

"All it takes is one punch."

8.4
3 seasons
36 episodes
Returning Series
Animation
Comedy
Action & Adventure
Sci-Fi & Fantasy

Plot Summary

The most powerful superhero in the world can kill anyone with one blow. But nothing can challenge him, so he struggles with ennui and depression.

First Aired:October 5, 2015
Last Aired:November 9, 2025
Episode Runtime:24m
Networks:
TV Tokyo, TV Aichi, TVQ, TV Osaka, TVh, TSC

Cast & Characters

Where to watch free (US)

No free providers found in US.

Seasons (4)

Season 1
8.4

Season 1

12 episodes

Aired: 2015

Season 2
7.7

Season 2

12 episodes

Aired: 2019

After defeating Boros, Saitama returns to his boring life in City Z. Meanwhile, the number of monsters is rapidly increasing, putting the Hero Association in crisis. Amidst the chaos, Garou emerges, a man who proclaims himself a monster and begins hunting heroes without mercy. A former disciple of the legendary Silverfang, he challenges everything and everyone with frightening strength. Intrigued by this new opponent, Saitama decides to participate in a martial arts tournament, unaware that an even greater threat is about to put all of humanity at risk.

Season 3
6.5

Season 3

12 episodes

Aired: 2025

Saitama is a hero who only became a hero for fun. After three years of "special training," he’s become so strong that he's practically invincible. In fact, he's too strong—even his mightiest opponents are taken out with a single punch. Alongside Genos, his faithful disciple, Saitama performs his official hero duties as a member of the Hero Association. One day, monsters claiming to be from the Monster Association suddenly appeared, taking a child of Hero Association executive hostage. The S-class heroes gather and plan a raid on the Monster Association hideout to rescue the hostage. Meanwhile, Garou, a "human monster" who was taken by the Monster Association during a battle with the heroes, awakens in the Monster Association hideout.

Production

Madhouse

J.C.STAFF

Bandai Visual

ADK

jeki

Shueisha

Lantis

Banpresto

Good Smile Company

TV Tokyo

ADK Marketing Solutions

Bandai Spirits

Bandai Namco Music Live

Bandai Namco Filmworks