Yu-Gi-Oh: Fusion Is the Noblest Summoning Method!

Xyz Dimension.

This is Heartland City, a joyful and laughter-filled metropolis created by the peerless genius, Dr. Faker.

In this city, "Dueling" is regarded as the most entertaining pastime. Both workplaces and schools teach students how to duel.

Inside Heartland, a man with wide eyes and spiky hair observed countless surveillance screens—live feeds from across the city.

On these screens, he could see a spirited, imposing young man using machines to duel and hunt down one Duelist after another, extracting their souls, turning them into cards, and leaving the withered humans behind.

"Excellent, excellent, Kite!"

He was none other than the city's creator, the peerless genius—Dr. Faker.

Just hearing the name evokes power!

As he watched, suddenly, bizarre dimensional rifts began opening everywhere—in the sky, on the ground, all across the city.

His smile only widened as his eyes opened even wider.

Giant machines appeared on Heartland's borders, and Duelists in purple uniforms emerged in the city's alleyways.

The most important matter was that the materialization machine hadn't arrived on schedule. But for Leo Akaba, the predetermined invasion date couldn't be casually changed, so he didn't investigate further and immediately switched to a backup plan.

It might not be as ideal, but it should suffice.

After all, Duelists of the Xyz Dimension focused mainly on entertainment. During previous interdimensional Duel exchanges, their performance had been quite mediocre.

Last year, Amaki Hikaru had easily defeated an Xyz Duelist with minor tactics, showing just how lax their youth training was.

Only their high-level Duelists could match the elite Duelists of other dimensions. But if you don't Duel, how will they fight back?

So—

Victory was certain!

With a light step, Yuri emerged from a dimensional gate, cheerfully dusting himself off, glancing around, and chuckling, "Ah-oh~"

He spotted a girl with a dangerous-housewife braid, wearing a white dress, with a bracelet on her right wrist.

The girl froze at the sudden appearance of Yuri, dropping the bucket in her hands. "Yuto? No—something feels wrong—who are you?"

Becoming alert, she pulled out her Duel Disk, but before she could Duel, a flash of purple light passed, and with a scream, she fainted and collapsed to the ground.

"Why do I feel... incredibly uneasy..." Yuri muttered. He sensed she was quite a capable Duelist, but since arriving in this dimension, he felt overwhelmingly uneasy. Instinctively, he took preemptive action.

If they dueled, it would probably take considerable effort to win, so it was better to grab her and leave immediately.

Wasting no time, he seized the girl and activated a quick teleport, vanishing.

"Lulu!!!" At that moment, a tall boy with wing-like hair witnessed the scene, screaming her name—but by then, both figures had vanished!

"Lulu!!!!!!"

The boy let out a heart-wrenching scream.

During that brief gap—

A massive mechanical giant, with a head, limbs, and joints all shaped like mechanical dog heads, descended over Heartland, scanning the entire city with its glowing eyes, then charging its lasers.

The whole city seemed engulfed in flames of battle. Everywhere, people were dueling.

And at that moment, while everyone was distracted by the soldiers, it unleashed a devastating laser cannon from its head!

Scorching flames turned the sky crimson.

In an instant, the laser traveled from hundreds of meters in the air to the ground, ready to slice Heartland clean in half!

Just then.

At that exact moment.

Right then, right there.

Click—time lost all color.

As if someone paused the video mid-play while going for a snack, everything froze.

The burning laser cannon was mere millimeters from bisecting Heartland, but in that frozen instant, that "millimeter" became a "world away."

Tierra took a bite of instant noodles.

"Did the machine break?" The screen had frozen. So she asked.

"You know better than I do," Hikaru said—he knew nothing about tech.

"Then it didn't break." Tierra twirled her fork through the air.

That left only one answer.

Time had stopped.

Next second—

Boom!

The ten-headed mechanical giant exploded in an instant. The laser that was about to hit the ground vanished.

Ancient Gear Giants began collapsing one after another.

In the blink of an eye, without even time to blink, everything vanished.

All that remained hovering in the sky was a serpentine, purple-winged giant dragon, with strange numbers glowing on its abdomen, marking its identity:

Number 92.

"What!?" Witnessing this, Leo Akaba shot to his feet in shock.

Impossible!

Instantaneous!

How was this possible?

His mechanical army, his mechanical monsters, wiped out in an instant?

He had rushed this invasion partly because of the Light Force disturbance, and partly because he knew from watching Hikaru's duels with Heartland youths that their Duelists were all "basic," "entertainment-oriented," so he felt confident.

But to think—

Before he could say more, countless dragon shadows, breath attacks, and beams of light surged from the other side of the dimension.

"Professor!" The guards screamed.

His "throne" began to crumble. His body staggered, and with a crash, falling debris struck his head, leaving him bleeding profusely.

"Deploy the Spirit Unit immediately!" Clutching his bleeding head with one hand, he scrambled for emergency measures. He didn't care about the injury—he could just craft a mechanical body later. What mattered now was staying calm. "Deploy the Spirit Unit!"

Unlike the Fusion Army, even when controlled, Spirits primarily fought through dueling. They could barely manage an ambush at the start, but without continued control, they'd revert to instinctual dueling behavior.

Given the current situation, controlling Spirit battles was a delusion.

Quickly recall troops, minimize losses, relocate bases—that was the smart play!

"Retreat! Retreat! Hurry, hurry!"

The Fusion soldiers panicked, scrambling in disorder.

Though they hadn't accomplished their main goal, Yuri seemed to have completed a "secondary objective," making this outcome a marginal success for the Marshal.

And as they struggled to relocate, a shadowy figure appeared unnoticed over their "Base Dimension," watching them intently, its thoughts unreadable.

A faint, sinister laugh echoed over the dimension.

"That's it?" Tierra instinctively slapped the now-static, snowy screen. After another wave of retaliation, the computer completely died. She clicked her tongue. "If it were my machine, it would have completed the mission perfectly even if the master died."

She had the right to say that.

Her machines were made through "divine arts," not mere technology!

"Too arrogant," Hikaru muttered. "Their world's hidden secrets are no less than ours."

A single Time Stop move—no matter how powerful your mechanical army, you'd still be left with no gravesite.

"This is an opportunity, Hikaru!" Tierra exclaimed, producing a laptop. It was the one Hikaru had picked up from the dimension where Lulu had been held captive. It contained tons of Fusion Army intel.

Including many interdimensional coordinates.

Undoubtedly, in the short term, the Fusion Army would lie low, shrink defenses, regroup, and seek new strategies.

Perfect time to test out their Dimensional Gate and go find more trouble with their allies!