The WORST seasons of One-Punch Man
Every season of One-Punch Man ever, ranked from worst to best by thousands of votes from fans of the show. The worst seasons of One-Punch Man!
Saitama is a superhero who has trained so hard that his hair has fallen out, and who can overcome any enemy with one punch. However, because he is so strong, he has become bored and frustrated that he wins all of his battles too easily.
#1 - Season 3
First Aired 10/12/2025
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.
#2 - Season 2
First Aired 4/10/2019
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.
