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Seasons & episodes
Searching for watch One-Punch Man season 3 online? Use the episode list below (legal-only availability varies by region).
Where to watch “One-Punch Man” (2015) online legally? See US streaming options first, plus English-region fallbacks.
One-Punch Man first aired in 2015 • originally associated with TV Tokyo • 3 seasons • 36 episodes • around 24 minutes per episode • status: Returning Series.
If you searched for “watch One-Punch Man online” (2015), the safest approach is to verify legal availability in your region (US first, then English-region fallbacks).
It sits in the Animation, Comedy, Action & Adventure space, which helps set expectations for tone and pacing.
It’s generally well-rated by viewers, so it’s a strong pick if you want something reliable to start tonight.
This page includes season navigation, episode list, cast, trailer (when available), and legal provider hints to help you decide quickly.
Synopsis
Saitama is a hero who only became a hero for fun. After three years of “special” training, though, 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, and it turns out that being devastatingly powerful is actually kind of a bore. With his passion for being a hero lost along with his hair, yet still faced with new enemies every day, how much longer can he keep it going?
Keywords
cyborg, martial arts, monster, karate, supernatural, superhero, parody, giant monster, social commentary, based on manga, alien invasion, fighting, super power, seinen, anime, philosophical, amused, exhilarated.
Stills
Similar series
Mob Psycho 100, MASHLE: MAGIC AND MUSCLES, Viral Hit, Myriad Colors Phantom World, Full Metal Panic!, Kaiju No. 8, The Red Ranger Becomes an Adventurer in Another World, Dorohedoro.
Main cast
