Characters

S-Class 3rd ranked martial arts master, a strict mentor but devoted to his disciples, a hero.

An A-Class hero who doesn't stand out at first glance but possesses solid skills.

A martial artist who learned the path of enlightenment from his roughneck days and protects the dojo alongside his younger brother Bang. Characterized by powerful techniques and a gentle personality.

Apprentice of Atomic Samurai, a powerful A-Class Rank 4 hero. A young hero who fights wielding a drill-shaped sword as his weapon.

S-Class Rank 6 bald-headed genius scientist. A hero who fights using swarms of remotely operated robots. A highly mysterious figure who sometimes shows a ruthless side.

Originating from a ninja village, he is an S-Class bounty hunter who claims to be the strongest ninja. He overwhelms enemies with high-speed movement and ninjutsu.

A lightspeed S-Class Rank 13 swordsman who uses a sword, overwhelming enemies with his high-speed movement and sword techniques.

A B-Class Rank 1 hero who wields psychic powers. Leader of the Fubuki Group, and the younger sister of her older sister Tatsumaki. Calm and possesses a strong will.

Former disciple of a B-Class hero who monsterized and became known as the 'Hero Hunter', a formidable antagonist. Possesses intense combat abilities and unique beliefs.

A cyborg youth and the disciple of protagonist Saitama. Possesses a strong sense of justice and drive for self-improvement.

Disciple of Atomic Samurai, ranked 2nd among A-Class Heroes, a hero skilled in iaido techniques.

A young genius and S-Class Rank 5 scientist hero. A child hero who fights using advanced scientific knowledge and mechanical technology.

Class S Rank 4 swordsman who uses sword techniques exceeding the speed of sound, calm and composed proud warrior.

Feared as the strongest man on earth, but in reality, he is an unemployed gamer with no combat ability. He is mistakenly recognized as the strongest due to misunderstandings and coincidences around him.

A brave hero who rides a bicycle without a license and holds the #1 position in the Hero Association's C-Class hero ranking. He has a strong sense of justice, low physical abilities, but his devoted attitude inspires many people.

Disciple of Atomic Samurai, and a rank 3 A-Class hero swordsman who cross-dresses. Known for exceptional swordsmanship skills and a unique personality.

S-Class 10th-ranked hero who swallows enemies whole with his massive obese body. Appears in the One-Punch Man world and is known for his high combat power and unique fighting style.

S-Class Rank 17 muscular okama hero who fights while escaping prison. Battles with a unique sense of style and boisterous personality.

The strongest hero who defeats any enemy with one punch. In daily life, he's free-spirited and somewhat apathetic.

S-Class Hero Rank 11 who possesses a body of super steel, boasting an astonishing amount of muscle and defensive power. A musclehead who nevertheless has a strong sense of duty as a hero.

S-Class Rank 14 melee warrior who favors tanktops and boasts overwhelming power.

Former No. 2 of the Tanktoppers, an S-Class Hero who eats only vegetables. Boasts exceptional combat abilities, but his unique diet is a characteristic feature.

S-Class Rank 2 esper and Fubuki's older sister. A female hero who sweeps away enemies with overwhelming psychic power.

One of the S-Class heroes who wears a dog costume and remains stationed in Q City. Eliminates countless enemies with his outstanding combat abilities.