One Piece: The Max-Level Blacksmith of Marineford

Then, under Iron Hammer's direction, everyone started working.

Iron Hammer, on the other hand, brought in many steel plates, which are the main support and protection components, as well as hard tempered glass.

These tempered glass pieces were specially made by Iron Hammer using knowledge from his past life.

Ordinary flat glass is heated to near its softening point and then rapidly cooled. This process of thermal stress and rapid cooling creates compressive stress on the glass surface and tensile stress inside, thereby significantly improving the glass's strength and thermal stability.

Moreover, relying on the flame effect and the ability's empowerment, the tempered glass's defensive capabilities are maximized.

Meanwhile, the sealed room was equipped with ventilation facilities, a toilet... it was definitely a tightly closed, dark room!

This is the solution for the hammer, and it will definitely not be used only once. If any jerk doesn't train properly in the future, just throw him in.

Yes, it really gives off a strong vibe of a dark room!

With the efforts of a hundred people, the secret room was quickly completed.

Iron Hammer and Zephyr stepped directly onto the tempered glass and stomped twice.

"Iron Hammer, I have to say, your tempered glass is really good. I stepped on it and it didn't even react."

Zefa looked at the tempered glass with curiosity.

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"Tch, of course, you don't even know who made it."

"Apart from this tempered glass, the rest of the parts are supported by steel plates, so it's very sturdy and there are no problems."

"The internal ventilation system can release the toxic gas into a separate storage tank. Teacher, remember to let Magellan handle it himself, so that no one gets poisoned."

Zefa nodded, looking at the small dark room at his feet with great satisfaction.

On the second day of training, Magellan entered this novel little dark room.

This greatly excited Magellan, who had always preferred dark environments, and this little dark room felt wonderful to him!

Zefa's lips twitched as he watched, but he was still very satisfied. He casually put up a sign in front of the training ground that read: "Special Dark Room for Training Camp".

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Having settled Magellan's matter, Hammer once again threw himself into the blacksmithing business.

While they were building the self-destruct device arranged by the Five Elders, a frantic shout suddenly rang out.

"Lieutenant General Iron Hammer! Lieutenant General Iron Hammer!"

"Marshal Kong wants you to come over!"

Upon hearing this, Iron Hammer reluctantly lowered his hand, thinking to himself: What is it now?

Marshal's Office.

"Old Kong, why did you call me over here?"

"It's only been a few days, can't you let me have some peace and quiet for a while?"

"Oh, all the old folks are here. Tell me, what's up?"

With practiced ease, he pushed open the office door and, without even looking, blurted out his complaints.

"Sakazuki was too impulsive..."

“What’s done is done. We need to recall him. We can’t let him stay in the New World, or there will definitely be unrest. After all, that woman lost five children at once.”

There were old man Kong, Sengoku, and Ms. Tsuru, all discussing Sakazuki. It seems that Dog Bro has done something big again.

When they saw Iron Hammer arrive, the three of them looked at him with very strange expressions.

"You're famous again, Iron Hammer..."

Hammer: ? ? ? What the heck?

Iron Hammer was stunned when he took the newspaper from Warring States.

The headline featured a dog and a tomahawk, while at his feet were several people who looked somewhat familiar, and on the other side was a portrait of Iron Hammer.

[Naval rising star Sakazuki declares that the divine weapon, the Q-setter, forged for him by Iron Hammer, can absolutely sweep away all evil!]

[Naval rising star Sakazuki slays five members of Big Mom's crew; is the Kamui ability of a whole bunch of Qs truly that sharp?]

[The renowned naval blacksmith once again declares war on the world with his divine weapon: everyone else here is trash, only he is the greatest craftsman of our time!]

The Big Mom Pirates consist of five people?

Holy crap, I remember now! Aren't these five the ones?

Charlotte Opera, Charlotte Conte, Charlotte Cardant, Charlotte Cavallette, Charlotte Gala.

The future Minister of Whipped Cream's quintuplets?

Morgans... I'm definitely going to kill you and make chicken soup for you!!!

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Chapter 137 If not, why don't you try to please Iron Hammer?

New world.

"The Navy has actually harmed our families; you cannot forgive them!"

"Perolin~"

On a pirate ship that looks like an egg tart, a pirate with his tongue sticking out and a fierce expression is Charlotte Perospero, the eldest son of Charlotte Linlin of the Big Mom Pirates.

Behind him stood two tall figures, one was Charlotte Daifuku, and the other was Charlotte Owen.

A warship was prominently displayed in front of the egg tart boat.

Sakazuki, his right arm glowing red, wielded his divine axe, Q, and looked at the Big Mom Pirates' officers before him, a hint of joy and killing intent flashing in his eyes.

"Pirates should be killed!"

"Those five noobs aren't even qualified to be the first to use their Q-type blades on God Axe."

The indifferent tone, tinged with disdain, instantly ignited Charlotte's anger.

"you wanna die!"

"Kill him!"

The battle started immediately.

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At the same time, Marineford, Naval Headquarters.

"Old man Kong, tell me where Morgans is! I'm going to kill him!"

This isn't the first time Hammer has been tricked by that bastard Morgans. He's always the one tricking others, but no one can trick him!

"Calm down, Iron Hammer," Sengoku quickly reassured him. "Morgans is unpredictable; he's very slippery, and his whereabouts are almost impossible to trace."

"Damn it! That damned birdman! How many times has this happened! Does he really think I, Iron Hammer, am easy to bully?" Iron Hammer slammed his fist on the table in anger.

On the other hand, Old Man Kong and Staff Officer He were watching him with smiles.

This infuriated Iron Hammer, who immediately retorted, "Wait, what's with those smiles from you two?"

"Iron Hammer, this is the fame you deserve, why are you so agitated?"

"I'd love for that bastard to report more of this kind of news that can boost the navy's morale."

Old Kong's casual remark infuriated Iron Hammer.

"Of course we have nothing to fear, you gentlemen are all so powerful!"

"No, I'm just a young guy. I'm not very good at mastering Haki, I haven't developed my Devil Fruit abilities very well, and my physical skills are not very good either."

"All you can do is blacksmithing. If you get caught by those ruthless pirates in the New World, you'll be crying!"

Old Man Kong: ....This brat, he actually said the word "coward" so confidently.

Warring States Period: .....Thank goodness Zefa wasn't here, or he would have been furious.

Crane: .....Sigh, why is it that so many naval officers who make it to the top ranks have some kind of serious illness?

But then the three of them thought about it again and realized that what Iron Hammer said didn't seem to be wrong.

He is a blacksmith, and a master blacksmith at that, no, a divine blacksmith. Such a treasure should be well protected.

At that moment, a naval soldier came in and reported: "Reporting to the Marshal, Vice Admiral Garp has sent word that he is ready to go find Chinjao and is asking Vice Admiral Hammer if he wants to come along."

"Is old man Garp going to make a move? Where is he?" Hammer's eyes widened, a hint of joy flashing in them.

He thought to himself: Finally, I can get my revenge!