Marvel: Sign-In System – Starting with the Glint-Glint Fruit

There was no doubt that the Magma-Magma Fruit deserved its name as one of the top Logia Fruits. In every aspect, it lived up to that title.

Many Logia Devil Fruits were indeed inferior to top Ancient Zoan or Mythical Zoan Fruits in certain areas. But one of the biggest reasons Logia Fruits were so sought after was their unique destructive power.

Kaido-sensei once said that Haki stood above all else.

That was indeed true. After all, after experiencing the God Valley battle, who were the people Kaido faced along the way?

Rocks, Roger, Garp, and others of that level.

Setting aside Rocks' Devil Fruit, what did those three top-tier powerhouses of their era have in common?

Haki.

Whether it was Observation Haki, Armament Haki, or Conqueror's Haki, those three were definitely at the very top of the world, at the T0.5 level of that era.

And that was only because Imu, the hidden BOSS, had to be taken into account. Otherwise, they would be T0.

If one wanted to stand at the top of the world, Haki was both the threshold and the upper limit.

But did that mean Devil Fruits were useless?

Certainly not. Was not someone as powerful as Joy Boy the user of the Human-Human Fruit, Model: Nika?

Thus, the two could complement each other.

The core advantage of Logia Devil Fruits lay in their large-scale AOE output, enabling them to unleash disaster-level catastrophes at will.

For example, the Rumble-Rumble Fruit could bring down lightning over a range of ten thousand meters and destroy an island. Aokiji's Ice Age could instantly freeze the sea and keep it frozen for a long time.

Then there was Akainu's Magma-Magma Fruit.

One Meteor Volcano could bring world-ending destruction, while also carrying extremely powerful single-target piercing damage.

Commonly known as true damage.

The advantage brought by Devil Fruits was beyond doubt. Reacher already had all three types of Haki, and after training step by step, he could fully grow to the peak.

But that did not mean Devil Fruits gave him no boost in combat power right now.

On the contrary, the boost was enormous.

And it came without the weakness of fearing the sea. It was simply perfect.

Ever since Matthew signed in and obtained the Glint-Glint Fruit ability, then ate the Rumble-Rumble Fruit, he had become certain that Devil Fruits had far greater development potential in this universe than in the One Piece world.

Both were Devil Fruits with identical functions, so why was Matthew so confident?

It came down to the difference in their environments—specifically, the gap in vision and cognitive understanding.

No matter how wonderful the sea adventures of the One Piece world were, they were still locked to that one planet. Its technology was also not as advanced as this universe's.

After all, this universe's technology was absurd enough to develop all kinds of weapons and equipment capable of destroying planets, star systems, and even universes.

At the same time, it also had magic, divine power, and all kinds of messy things.

The difference in vision and knowledge reserve was the gap.

With Akainu, the Magma-Magma Fruit had already been developed to its peak. But with Reacher, it would certainly be developed even further.

There was no special reason.

It was simply the gap in understanding and technology.

Akainu did not understand the theories and knowledge behind magma. The fact that he could develop it to that level came entirely from instinct and step-by-step trial and error.

The bug-like energy conversion efficiency of Logia Devil Fruits could be perfectly used and developed by Akainu.

But in the end, he did not know that under modern science, magma had already been studied thoroughly.

And the Terra Empire had specially assigned matching scientific departments to this batch of Devil Fruits.

The focus was targeted Devil Fruit research under the lens of science. With this kind of unlimited-budget support, how could Akainu compare to Reacher?

Their support environments were far too different.

Of course, Reacher had only just eaten the Magma-Magma Fruit. His development of it had only begun.

And the opponent he was facing now was Juggernaut.

A terrifying monster backed by Cyttorak, the ruler of the Crimson Cosmos.

Boom!

Under Reacher's Great Eruption, anything in its path should have been blown to pieces and destroyed. Yet to Juggernaut, it was undoubtedly nothing more than an itch.

As Juggernaut charged forward, his terrifying physique paired with his near-rule-based momentum made him completely unstoppable.

Juggernaut's muscular, nearly three-meter-tall body actually burst right out from beneath the giant magma fist of the Great Eruption. His clothes were visibly damaged, and even his skin had burn marks from the blazing heat of the magma.

However, under the effect of his powerful self-healing factor, the burns regenerated at a rate visible to the naked eye.

The eyes beneath Juggernaut's helmet had already turned blood-red. He roared in excitement, crossing both arms as he charged forward.

The explosion from Great Eruption had not slowed him down at all.

His speed was so fast that he arrived in the blink of an eye. The pressure and wind rushing toward Reacher even made his skin tremble slightly.

In truth, facing this move, Reacher could have completely canceled it out with elementalization.

After all, Juggernaut's weakness was that this charge was a physical attack, and Logia Devil Fruits were the best at countering pure physical attacks like this.

But Reacher did not choose to do that.

There was only one purpose in his fight with Juggernaut: to push himself, to force his body to its limit.

Juggernaut had no health bar, no stamina bar, no mana bar—nothing that could be worn down.

Juggernaut was a pure perpetual motion machine.

He had no fatigue value, but his combat experience and skill were basically zero.

If this were truly a life-and-death battle, Reacher had too many ways to deal with this kind of opponent. Observation Haki alone would make it impossible for Juggernaut to ever hit him.

But that was completely unnecessary.

So Reacher chose the most direct, brutal method—flesh against flesh, fist against fist. He was using Juggernaut to temper himself.

Reacher let out a low roar, refusing to back down. He also crossed both arms, and his upper body was instantly covered in Armament Haki, turning pitch-black.

He nailed his body firmly in place.

He was going to take Juggernaut's charge head-on.

"What a tough guy," Logan muttered, watching intently. His eyes shone with admiration and respect; he loved tough, rugged fighters.

As someone whose mobility was utterly terrible, the enemies he hated most were those who dodged and slunk around. Even if they could beat him, they were not worthy of his recognition.

The youngest onlookers, Carrie and Rogue Marie, were so tense they forgot to breathe, their eyes wide and locked on the scene.

At last, Juggernaut and Reacher collided.

The impact was like a meteor hitting the Earth.

The moment the unstoppable Juggernaut crashed into Reacher, time seemed to freeze for a second. Then a terrifying wave of air exploded outward, along with a harsh metallic crash.

Clang!!

Reacher's expression remained unchanged, but his body shuddered violently. That unstoppable force rushed violently through his arms and spread through his whole body.

His muscles, internal organs, bones, and cells were all absorbing the violent shock of the collision.

Sizzle~~

Reacher successfully blocked the charge, but the powerful momentum still pushed him backward at high speed. His shoes carved a long trench through the ground, plowing open the earth as dirt sprayed everywhere.

"Woah~"

From where they were watching, Logan, Storm, and the others followed the wildly sliding figure with their eyes.

What insane impact force!!

Reacher held his ground, though his chest felt tight. He was secretly shocked by Juggernaut's absurd momentum. Once those massive legs started running, the unreasonable force behind his charge was relentless.

Reacher knew that if he merely kept blocking like this, he would be pushed to the ends of the earth.

However, he refused to yield. He was determined to bring this big guy to a complete halt.

As he slid back, Reacher slammed his right foot heavily into the ground behind him.

Boom!

The ground shook violently, sinking inward in a massive crater. The earth fractured into countless square tiles from the force before springing into the air.

Veins bulged on Reacher's forehead, his face flushed red as he let out a low roar, unleashing the full extent of his physical strength.

This sudden burst of power caused the moving train that was Juggernaut to stall for a split second. Reacher instantly seized the opening, pulling his right arm back from his crossed guard.

Whipping his arm back, he coated it in high-tier Armament Haki, causing a swirling stream of black-and-purple energy to manifest around his fist.

Packing all of his physical strength and Armament Haki into one blow, he slammed his fist directly into Juggernaut's crossed arms.

BOOM!!

A deafening explosion rang across the world. A wave of air burst outward from the two of them, but Juggernaut was actually sent flying by that punch. Reacher was the same, blown away by the recoil.

Juggernaut shot backward for over a thousand meters before smashing into the ground and sliding several hundred more meters before slowly stopping.

Compared with the battered Juggernaut, Reacher was much better off. After flying back over a hundred meters, he spun in midair and kicked forcefully off the empty air.

Using Moonwalk—one of the Six Powers—he adjusted his posture in midair.

Hoo~~

Reacher landed gently on the ground, his chest heaving slightly as he slowly let out a breath. Sweat dripped down his forehead.

Clearly, that fight had put quite a bit of pressure on him.

"Why did Uncle Reacher have to clash head-on with that big guy? Couldn't he dodge?"

Carrie finally relaxed a little, then asked softly in confusion.

She did not believe that Reacher, the former Astartes Commander and now the supreme war commander of the Terra Empire, had no combat skill.

Anyone who knew even a little about the Astartes understood that these fierce men in heavy power armor actually had skills completely different from their appearance.

Their combat experience was frighteningly rich. With nanosecond-level reaction speed and judgment, they were the most terrifying killing machines, able to instantly see an enemy's weakness, seize it, and counterattack.

They also possessed extremely agile flexibility and speed.

Since that was the case, why did he insist on facing Juggernaut head-on?

Marie, Storm, and Logan all perked up their ears, clearly curious as well.

Before Matthew could speak, Natasha smiled and gave the answer. Her slightly husky yet magnetic mature voice sounded beside everyone's ears.

"Because he's using Juggernaut to temper his body. At our level, ordinary real combat doesn't help much. He needs Juggernaut, who never gets tired and possesses immense strength, to keep crashing into him and force his body to its limit."

"The process is like craftsmen using hammers to forge and strike a metal billet over and over, removing the impurities."

Upon hearing Natasha's explanation, Carrie and the others instantly understood.

...

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