Konoha: The thirty-year-old Uchiha is not motivated.

On the shore of the largest inland lake outside Amegakure Village

Dozens of local residents who make a living by fishing are busily tying their fishing boats together to prevent these tools of their livelihood from being swept away by sudden, huge waves.

"Plop plop~!"

Hearing the roar of the crashing waves, the young fisherman, who had just tied up his boat, stared in terror at the towering waves churning in the deep water in the distance. Each wave there was tens of meters high, capable of easily swallowing anything floating on the surface.
"What exactly happened today?"

He had lived by this lake for ten years, and this was the first time he had ever witnessed such a terrifying phenomenon.

"This has never happened before, has it?"

The old fisherman, who was busy on the boat next to him, looked up upon hearing this, a faint look of realization crossing his aged face, as if he were lost in some kind of memory.

"No, this isn't the first time this has happened."

After a long pause, he gently shook his head, his deep gaze pointing towards the center of the lake, an unknown area designated as a forbidden zone by Amegakure.
"More than a decade ago, a similar phenomenon occurred. I still remember it to this day. In the thick fog, several huge phantoms were fighting in the depths of the lake."

"Why are you telling stories again?"

The young fisherman glanced helplessly at the old man next door; he had heard this legendary story countless times.

"Hasn't Lord Hanzo already debunked the rumors? Those phantoms are nothing but mirages."

"I saw it with my own eyes! These young people nowadays..."

"I only trust official sources. Anything I haven't seen should be considered a rumor!"

Shaking his head dismissively, the young fisherman was about to continue speaking when he caught a glimpse of a figure flying in mid-air out of the corner of his eye. The words he was about to say were instantly swallowed, replaced by a gasp of astonishment.

"Are you OK?"

The older fisherman frowned, noticing something amiss with the young fisherman.
"There are people... people... people flying in the sky!"

"Who is there?"

Following the direction pointed out by the astonished young man, the old fisherman did not see the so-called flying man, and his expression immediately fell.
"It's true, I really saw someone moving around in the clouds."

The young fisherman was still trying to explain, but the older fisherman retorted with the same sarcastic remark.

"I only trust official sources; anything I haven't seen is considered a rumor."

mid-air,
Uchiha Gin, using the Light-Heavy Rock Technique to speed through the clouds, stared blankly at the warning beacons floating every few kilometers on the water's surface.
Thanks to his good eyesight, he could clearly see the words "Rain-hidden Forbidden Area, Turn Back" written on the navigation mark.
"Oh my~ I never thought that the stage I casually set up back then would now be a tourist attraction."

Uchiha Gin nodded thoughtfully. It seemed that the commotion caused by the First Knight War had attracted the attention of Amegakure.

However, he had already cleaned up that battleground, even taking away the packaging bags from Honey Ice City. Rain Village probably won't be able to find anything, right?
"Boom!"

Just as Uchiha Gin was stroking his chin in thought, a plume of lava shooting into the sky in the distance interrupted his thoughts.

Is my older cousin still playing?

Uchiha Gin blinked in confusion, then, locking onto the presence of Uchiha Madara in the distance, his flight speed suddenly increased.

Finally, a minute later, the stage he had built himself appeared before Uchiha Gin's eyes.

"Ta~"

Eagerly landing on the ground, Uchiha Gin quickly concealed his presence to avoid being detected by the island's inhabitants.
The reason he didn't use the Flying Thunder God Technique to teleport to his younger cousin's side was that he wanted to secretly see what this troublesome younger brother was up to, even bringing out such a dangerous form as the Ancestors.

Following the aura, Uchiha Gin instantly landed on the stands he had set up years ago. His gaze swept over the slightly messy battlefield, and his drooping eyebrows furrowed slightly.
lava,

Everywhere you look, there is lava.

The center of the battlefield was covered with scalding, golden-red lava, and the strong smell of sulfur stung his nose.

Two figures stood facing each other like titans on a solitary island rising abruptly from the lava, barely large enough for one person to stand on.

The figure in magenta, Uchiha Gin, is instantly recognizable. Although the overall design has changed slightly from before, the classic color scheme confirms that he is indeed his older cousin in his enhanced form.
The white camera at her waist has been replaced by a magenta touchscreen, upon which the silhouettes of the nine tailed beast riders are arranged in an orderly fashion.

The chest armor was much bulkier than before, but the most eye-catching feature was the row of Tailed Beast Rider cards adorning it.
[Decade Knight - Ancestor Form]

It is the final form of Decade (at present stage), which is enhanced by using the Rider Touchscreen. It can flexibly utilize the power of any Rider and is an overpowered existence that combines the abilities of all Tailed Beast Riders.

However, this very strange mechanism failed to instantly kill the unfamiliar knight on the other side, which aroused considerable curiosity in Uchiha Gin.
"That's... the Four-Tails?"

By comparing chakra, Uchiha Gin quickly recognized the true nature of the unfamiliar rider's power: it was a Tailed Beast Rider transformed from the mediocre Four-Tails Son Goku.
"A new form I've never seen before, and the stats seem pretty high."

After carefully examining the enhanced and transformed appearance of Number Four, Uchiha Gin could tell from his powerful physique and the golden-red lava photon blood flowing through his body that this was definitely a pure numerical monster.
As he expected, this new form of the Four-Tails Rider, facing the overwhelming power of Madara Uchiha, actually chose to take the initiative, running through the scorching lava as if it were flat ground.
"boom!"

The iron fist, crackling with golden-red heat, charged straight at Madara Uchiha's gate.

"Humph!"

Faced with this overwhelming attack, Madara Uchiha made no attempt to dodge.
His current form is absolutely invincible among knights. Whether it's the bizarre mechanics or the terrifying stats, no mere imposter can possibly compete.
The reason he didn't crush the clone before him with overwhelming force was not only out of consideration for Tsunade's feelings, but also because he wanted to test the limits of his own abilities.
Reaching up to retrieve the touchscreen from his waist, Madara Uchiha glanced at the menacing Number Four, his tone carrying a hint of inexplicable mockery.
Have you ever tried boxing with your own shadow?

"Click~"

"Four tails, Kamenride!"

As he tapped the silhouette symbolizing the Four-Tailed Rider on the touchscreen, a blurry figure solidified beside him.

"That's... another Four-Tailed Rider?"

Tsunade, watching from the sidelines, stared in utter horror at the red knights that had suddenly appeared beside Madara Uchiha.
"Hehe, it's not over yet~"

“Strengthen!”

Madara Uchiha's actions didn't end there. He pressed the unidentified button in the upper right corner of the touchscreen again, and the Four-Tails Knight in its normal form began to evolve at a visible speed.

"boom!"

Just moments before the fourth attack arrived, an iron fist, also enveloped in golden-red magma, collided with his fist, unleashing a massive wave of lava that surged in all directions.

"careful!"

Seeing this, Uchiha Izuna quickly grabbed the stunned Tsunade and pulled her back dozens of meters, thus avoiding being caught in the magma wave.

"Thank you." "It's too dangerous here. Let's find a safer place to watch the game."

They were too close to the center of the battle; one wrong move and they would be caught in the aftershocks of the fight. Uchiha Izuna looked around and finally locked his gaze on the spectator stands not far away.
The location offers a commanding view and an exceptional vantage point, making it the perfect spot for spectating the game.
"Did you buy seats before you came?"

Uchiha Gin, who was engrossed in watching his younger cousin demonstrate his new abilities, suddenly sensed two familiar presences approaching. A look of helplessness was clearly visible on his face.
He could understand having his younger cousin, a henchman, present, but how did Tsunade manage to get into this situation?
After recognizing Tsunade's presence, the helplessness on Gin Uchiha's face gradually gave way to confusion. However, now was not the time to think about that; he now had two choices.

First, change the location; second, change the identity.

Unwilling to give up the best viewing spot, Uchiha Gin naturally chose the second one.

Without hesitation, he stood up, extended his right hand, a red glint flashed in his eyes, and a complex triangular pattern appeared.
"Sister Wang, please!"

With a call, a dark, black portal silently opened beside Uchiha Gin.

A dark, soft hand emerged from within and gently rested on his right hand.
A blinding light flashed, and a special driver with a joystick appeared in his hand.

"henshin!"

With the driver fastened to his waist, Uchiha Gin skillfully inserted the eye power canister formed from the power of his Sharingan, then pulled out the black hole trigger formed from the power of Soujin Saehime.
"Humph!"

The moment he took out this item, the image of Wanliang's resentful snort echoed in his mind, as if she was annoyed that Uchiha Gin hadn't used her Rabbit Jar.
"Next time for sure~ Next time for sure~"

Awkwardly scratching his head, Uchiha Gin quickly tried to appease the angry Muryo.

"Want some juice? I'll make it for you myself!"

Sister Wang's temper has been a bit strange lately, so he has to appease her. If this dark-skinned, mature woman suddenly backs out, he'll lose all the pretense he's been hiding.

“Ou Runji”.

"No problem! I'll call you when we get back!"

Having received the promised reward, Wanryu finally calmed down. Uchiha Gin wiped the sweat from his brow, raised his hand, and inserted the Black Hole Trigger into the Driver.
"Crunch~ Crunch~ Crunch~"

As the dark nebula emerged, Uchiha Gin's figure gradually disappeared into the mysterious darkness.
Just then, Uchiha Izuna landed with Tsunade. The two immediately noticed the terrifying aura emanating from the dark nebula in the audience and instantly became wary.

"What it is?"

Uchiha Izuna frowned. His senses weren't bad, so why hadn't he detected this strange, unidentified creature earlier?

"If even you don't know, how would I know?"

When asked the question, Tsunade, looking speechless, hid behind Uchiha Izuna, cautiously observing the undercurrents of the Dark Nebula.
"Hiss~"

After observing for a few seconds, the dark nebula suddenly seemed to collapse, completely swallowed up by an unknown, powerful suction force.

"what?"

The two stared in astonishment at the seemingly appearing, a deep black hole that completely overshadowed their desire to watch the battle.

"Tap tap. Tap."

Just as they were about to step forward to explore the black hole, an unfamiliar figure slowly stepped out.

The menacing dragon horns, the black and white heavy armor, and the flowing skirt typical of a powerful figure—all these elements told them that this knight was definitely not to be trifled with.
"You are."

Despite feeling immense pressure looking at the unfamiliar knight before him, Uchiha Izuna still shielded Tsunade behind him.

"Mr. E."

Having completed his transformation, Uchiha Gin introduced himself in a specially modified, deep, bubbly voice.
E-General?
Uchiha Izuna frowned, a sudden glint of light flashing in his bewildered eyes as long-buried memories were awakened.

"You're CEO E!?"

Yes, he knew this knight. Although he had only learned about E-class from Madara Uchiha's accounts, this was the first time he had seen him in person.
"Replacement guaranteed."

Uchiha Gin sat down on the spot, crossed his legs, and adopted a thunderous sitting posture, which made the two men's eyes twitch.
"Do you also wish to witness this battle with me?"

"Who is he? He looks so arrogant."

Tsunade, whose eyes were stinging from the oppressive aura of Uchiha Gin, quietly nudged Uchiha Izuna in front of her.

"I've only heard of this E-man, but one thing is certain: he was the original Kamen Rider Decade."

"what?"

Upon hearing this, Tsunade's eyes widened. She looked at the slick, snake-skinned monster with disbelief, then turned to look at Madara Uchiha, who was swaggering around in the arena. A complex expression was visible on her fair face.
"No wonder."

When it comes to showing off, you have to look to Kamen Rider Decade.

"What is your purpose here?"

Although he knew he was no match for the snake-skinned monster before him, Uchiha Izuna still braced himself and asked the question.
"You're playing around in my backyard, and you still have the nerve to ask me what my purpose is in coming here?"

Uchiha Gin crossed his arms and rhythmically tapped his arm armor with his fingers. The crisp sound sounded strangely heavy to Uchiha Izuna and the other man.
Upon hearing this, Uchiha Izuna seemed to awaken from a dream.

That's right, this island was originally the battlefield of the First Rider War, and the one who started that battle was none other than the first generation Decade right in front of us.
"Sorry for disturbing you."

After holding it in for a long time, under the unintentional pressure of Uchiha Gin's aura, Uchiha Izuna, covered in sweat, suddenly uttered an extremely pathetic apology.

Little cousin, you really are a little brother?

The dead fish eyes beneath the visor almost rolled back to the sky. If Izuna dared to pull a gun at him now, Gin Uchiha would go back and make him a supercharged device as a reward for his heroic act.
Tsk tsk tsk, young man, I gave you a chance but you didn't use it. Be prepared to play around with your basic skills for the rest of your life~
"Excuse me, can you stop their pointless fight?"

Just as Uchiha Gin was secretly sighing, Tsunade, who had been hiding behind Izuna, unexpectedly stepped forward. Looking at the unfamiliar snake-skinned monster, she gritted her teeth and asked in a pleading tone,

"Ok?"

Uchiha Gin raised an eyebrow in surprise. Logically speaking, shouldn't Tsunade be asking him to suppress the clones?

That's a weapon of war bearing his grandfather's skin!
He has committed countless evil deeds, professionally tarnishing the reputation of the God of the Ninja World.

"Please, Decade... no, E-class!"

Recalling the genuine emotion emanating from Number Four, Tsunade bit her lip and said earnestly,
"That person is a good person, the kind who gives me a big red envelope during Chinese New Year." (End of Chapter)