[Basic] Dimension.
Yugi bought an ice cream and sat in the audience, watching a unique duel.
It was said to be a duel between the son of this world's "Duel King" and the "Former Duel King" and an "Entertainment Duelist".
Honestly, lately, Yugi's experience in this world hasn't been bad.
The atmosphere in this world is much better than in theirs, with less scheming and power struggles, and fewer people filled with greed, with only "Entertainment Duels" developed to the peak.
In this world, dueling is a pure form of entertainment, especially in a world with "Physical Image Technology," where duels are performed alongside imagery, making it very captivating.
This made Yugi feel inexplicably relaxed.
In his world, all major companies have the habit of hiring "Representative Duelists," and duelists in the market look more like "swords of major companies" than engaging in "entertainment from the heart".
Honestly, he didn't know if this development was a good thing.
Especially with the advent of Dimension Travel, these duelists have become gold prospectors of travel to the Other Dimension, making most duelists prioritize profit above all.
But here,
it looked quite simple.
At least during his time living in this world, he felt that the duelists here were quite simple.
In fact, duelists in this world, like those in their world, have just learned of the existence of "Synchro" and "Xyz"—and even more recently, they've just discovered the existence of "Polymerization"!
This was quite astonishing.
Because in the dimensions of Synchro and Xyz, Polymerization actually exists too.
But conversely,
not only can this world perform Polymerization, but it can also perform Synchro and Xyz, which is something their dimension cannot accomplish.
However, at least so far, he felt that the dueling in this world was quite primitive.
Mostly focusing on Tribute Summon.
As he ate ice cream, his hand suddenly paused.
Huh?
He saw that the child on stage suddenly had red eyes for some reason, and his body lit up with dazzling light, then the card in his hand started to glow and then changed into another card on the spot—
Yugi became intrigued.
He put down what he was holding and watched the duel intently.
The duelist named Sakaki Yuya placed two cards on both sides of his Duel Disk, and then colorful light, along with the power of the Soul Swing, swayed in this world!
This is!
Yugi suddenly realized.
I see.
This is not a [Basic] Dimension!
Even the leader of this dimension didn't realize this!
"I set the Pendulum Scale with Stargazer Magician at scale 1 and Timegazer Magician at scale 8!"
Two gigantic beams of light appeared on the field, then under the beams, two magicians slowly levitated into the air, and beneath them, two golden numbers appeared—
1 and 8!
A giant pendulum appeared in the sky, swinging back and forth.
"This way, I can summon monsters from levels 2 to 7 at the same time!"
On stage, Sakaki Yuya instinctively shouted.
"Swing, Soul Spirit Pendulum!"
The pendulum began to swing left and right.
In Yugi's eyes, the entire world seemed to start "swinging."
I see; so that's how it is! He quickly took out his Duel Disk, pressed a button, and watched as the P Zone slowly emerged after the Duel Disk unfolded, realizing everything—from today, the Pendulum Zone will expand from this place to all worlds, to all beings! Pendulums officially enter the usable stage!
His interest in this world grew stronger.
"Draw the arc of light in the sky!"
"Pendulum Summon, appear, my servant monsters!"
Three beams of light descended from the sky, crashing down to the ground, surprisingly Special Summoning three monsters at once!
"Oh!" Yugi couldn't help but applaud.
While others didn't know what had happened and were confused on the spot, he delightedly began clapping.
Too brilliant; is this how it's used—
As he continued to watch, he learned that when a Pendulum Monster is sent from the field to the Graveyard, it doesn't go to the Graveyard but is placed face-up in the Extra Deck, and as long as it's within the Pendulum Scale range, it can be Pendulum Summoned directly from the Extra Deck each turn.
Fascinating.
Indeed, new things are what make people feel intrigued.
Although Sakaki Yuya only won the duel by relying on the attributes of Pendulum Summoning and didn't employ any bizarre tactics or strategies, Yugi still found it immensely enjoyable, not even caring if the sundae melted.
Defeating all other competitors, coming to this dimension as a Card Designer was the right choice!
He witnessed the birth of Pendulum firsthand!
"So that is... Pendulum Summoning."
Meanwhile, in this dimension's "Leo Company," a boy wearing glasses and a scarf gently pushed up his glasses, intently watching the scene in front of him.
He was the "leader" of this dimension, the son of Akaba Leo, Akaba Reiji.
Beside him—reflected in the machine beside him, a red-haired girl was standing with her eyes closed, not speaking, yet a voice resonated in the air.
[Just as I said, within that human's body lies the key to unlock the Soul Swing. Once he unlocks this key, humans like you, possessing special particles, can use this power like open-source software.]