Chapter 30 – Class S
OPM Manga Chapter 30 escalates the story’s scope as S-Class heroes gather at headquarters, hinting at an impending catastrophe.
The chapter opens at a mountain dojo, where S-Class hero Bang demonstrates his devastating “Fist of Flowing Water Crushed Rock” technique to an unimpressed Saitama and Genos.
The scene is interrupted by Charanko, Bang’s student, who challenges Genos only to immediately surrender.
Bang reveals a darker chapter of his past about his greatest disciple, Garou, whom he was forced to expel.

S-Class Heroes Gather
Before elaborating further, a Hero Association agent arrives, urgently summoning Bang and Genos to City A’s headquarters.
At the gathering of S-Class heroes, personalities immediately clash.
Atomic Samurai notably snubs Saitama’s handshake, while the diminutive but powerful Tornado of Terror, ranked second among S-Class heroes, makes her intimidating presence known.
As these legendary heroes assemble around the conference table, an atmosphere of tension builds.
These are the S-Class heroes present:
- Puri-Puri Prisoner
- Metal Bat
- Tank-top Master
- Flashy Flash
- Watchdog Man
- Superalloy Darkshine
- Pig God
- Genos
- Tatsumaki
- Bang
- Atomic Samurai
- Child Emperor
- King
- Zombieman
- Drive Knight
Saitama, seemingly oblivious to the gravity of the situation, casually requests tea, leading Puri-Puri Prisoner and others to mistakenly assume he’s merely Genos’ assistant which is a misconception that will likely prove amusing in hindsight.
Chapter 31 – The Big Prediction
OPM Manga Chapter 31 builds tension as Earth’s mightiest heroes gather to confront an apocalyptic threat.
The Hero Association’s Sitch leads a critical meeting, offering S-Class heroes the option to decline what could be their most dangerous mission yet.
Metal Bat’s skepticism about the threat’s severity is silenced when Sitch reveals the shocking death of Great Seer Shibabawa.
As Puri-puri Prisoner explains the Seer’s significance to a curious Saitama, Sitch plays Shibabawa’s final recording- her last prophecy before choking to death was Earth’s destruction.
His table-slamming emphasis on the dire situation resonates through the room.
The atmosphere grows heavier as heroes like King and Watchdog Man process the gravity of the situation.
Sky King Attacks
However, before they can formulate a response, chaos erupts as monsters breach the Hero Association’s headquarters.
Led by the formidable Sky King, a squad of aerial monsters named Hawk, Kite, Falcon, and Eagle, launch their assault, declaring their intent for world domination.
A New Threat Arrives
The chapter climaxes with Sky King’s minions falling mysteriously as an enormous shadow engulfs the city, accompanied by an earth-shaking sound, signaling the arrival of an even greater threat.

Chapter 32 – From Outer Space
OPM Manga Chapter 32 erupts into chaos as a massive alien spaceship appears over City A, causing Saitama’s tea to spill.
The spacecraft unleashes devastating attacks, transforming the cityscape into a battleground.
The situation intensifies when Sky King falls to a more formidable threat: a regenerating, multi-headed monster named Melzargard, one of the alien army’s top generals.
Heroes Spring to Action
As S-Class heroes like Bang and Metal Bat mobilize, Saitama casually makes his way to the spaceship’s hull, effortlessly dodging artillery and creating explosions with casual kicks.
Below, IAIron struggles against Melzargard’s regenerative abilities, joined by Atomic Samurai and Puri-Puri Prisoner.
When King suggests calling the S-Class hero Metal Knight for support, Tatsumaki dismissively mocks both this idea and Genos’s attempt to join the battle.
Lord Boros
Meanwhile, Saitama carves a path of destruction through the spaceship, dispatching monsters like Groribas with characteristic ease.
As Lord Boros, the alien commander, orders his forces to eliminate the intruder, the scattered heroes below continue their desperate battle against Melzargard’s multiplying forms.

Chapter 33 – Men Don’t Listen
OPM Manga Chapter 33 showcases the pivotal first meeting between Saitama and Lord Boros, while Earth’s heroes battle below.
Saitama’s casual infiltration of the alien spacecraft continues as he accidentally tears away an entire room while simply trying to open a door.
Melzargard Versus S-Class Heroes
On the ground, Metal Bat makes a crucial discovery during the fierce battle with Melzargard.
He noticed marble-like cores that, when destroyed, prevent the monster’s regeneration.
One of Melzargard’s bodies collapses as Metal Bat, Bang, and Puri-Puri Prisoner press their advantage.
Saitama Strolls the Space Ship
The scene shifts to a 3D map of the ship, zeroing in on Saitama traversing its fleshy corridors.
Despite telepathic demands for his surrender, he outsmarts his observers by running in the opposite direction before demolishing a massive door with a single leap.
The chapter climaxes as Saitama finally encounters Lord Boros on his throne-like stage.
Before their confrontation can begin, Geluganship, a black monster with telekinetic powers, launches a barrage of rocks at Saitama.
The attack proves futile as Saitama stands unscathed, wearing his characteristic expression of boredom.
Chapter 34 – Are You Stupid?
OPM Manga Chapter 34 showcases the stark contrast between two simultaneous battles.
Inside the alien ship, Geluganship’s impressive telekinetic tornado proves futile as Saitama casually flicks a pebble, obliterating the monster’s head.
Lord Boros and the Seer’s Prophecy
This display catches Lord Boros’ attention, prompting him to share a seer’s prophecy from 20 years ago about finding a worthy opponent on Earth.
However, before he can finish his monologue, Saitama interrupts with a devastating punch that shatters Boros’ armor, forcing him to unleash his true form in a spectacular display of power.
This is the start of the epic battle between Saitama and Lord Boros.
S-Class Heroes Versus Melzargard
Meanwhile, on the ground, the heroes continue their strategic battle against Melzargard.
As an alien prepares to rain destruction from above, S-Class hero Tatsumaki demonstrates her extraordinary psychic abilities, catching the bullets mid-air and redirecting them back at the ship.
The coordinated assault on Melzargard intensifies as Puri-Puri Prisoner restrains the monster, allowing Bang to destroy one of its vital marbles.
Though Bang takes a heavy hit in the process, the heroes press their advantage.
The chapter culminates with Boros, now transformed and glowing with power, squaring off against a still-unimpressed Saitama.
Chapter 34.5 – Salmon
The fight between Lord Boros and Saitama takes a little break as One Punch Man Chapter 34.5 offers a lighthearted interlude.
Saitama’s peaceful salmon lunch is interrupted by broken chopsticks and a suicide attempt unfolding nearby.
While media crews and another hero attempt to talk down a man on a ledge, Saitama continues eating, casually suggesting the man should just jump.
The man’s angry tirade about heroes is cut short when Saitama’s salmon falls off the building.
In a display of misplaced priorities, Saitama dashes down at incredible speed to save his lunch, leaving the man mid-speech.
After catching the salmon and returning, Saitama’s casual request to continue their conversation further bewilders the would-be jumper.
Saitama Saves a Suicidal
When the man accidentally slips, Saitama deftly catches him with chopsticks.
Moved by this unconventional rescue, the man opts for the elevator instead of jumping, though his gratitude quickly turns to irritation as he pushes through the crowd below.
The chapter closes with Saitama watching from above and groceries in hand when a monster appears.
Duty calls even in a bonus chapter.
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