The Genjutsu Devil of Konoha

Seijuro remembered all of his preparation, the countless plans he had laid out beforehand. He had made like 20 explosive bombs, all strategically placed away from the Hero Water of this village. When they exploded, one of his clones—dressed as an Iwa-nin—would act like he was trying to steal some Hero Water.

While Takigakure would be focused on that, he would go for his real goal: the Tailed Beast.

He wasn't going to take the actual Tailed Beast—even if it wouldn't be that hard for him. Kyōka Suigetsu could leave behind a shell of the beast's chakra and make it seem like it was the Bijū.

However, he wasn't trying to become an actual Jinchūriki, more like a pseudo-Jinchūriki—one without the beast's will.

Just the chakra.

He skillfully snuck inside the area he knew the Bijū was being held.

There, after managing to sneak past six or so guards, he arrived at the chamber. There, he could see it. In the middle of the room, there was a closed vase... and inside said vase, there was an enormous amount of chakra.

A lot—and he does mean a lot—of sealing arrays could be seen all around the area, all linked to the vase.

Seijuro could tell all those seals were ass, but good enough to hold the Bijū. There were like nine Jōnin reinforcing the seal 24/7, just in case the Bijū tried to get out.

"Impressive," Seijuro murmured silently, his Genjutsu shrouding both his chakra and his very presence. "...But you're not infallible."

And so, he waited.

Exactly 22 minutes passed.

He timed everything: how many times they breathed in a minute, the number of steps taken, how long it took a guard to do a complete shift of this area, how many times they blinked in a minute, their patterns.

Everything. And that was the bare minimum needed for his illusion, because after all, he was about to put them in an illusion—and the illusion needed to feel normal, down to the last minute detail.

When he got their pattern correctly—

"I have 90 seconds," he said to himself.

He had counted how long the guard shift lasted.

He took in a deep breath before making the Tiger hand seal.

"Kai."

KRA-KA-BOOM!!!

Explosions echoed across the northern and western sections of Takigakure like a firework show at a funeral. Smoke billowed. Screams rang out. Sirens began blaring.

And—just as planned—four of the Jōnin standing watch over the Bijū chamber bolted toward the chaos.

"Check the Hero Water chamber!"

"We're under attack!"

"Get reinforcement seals ready—now!"

Perfect.

With only four guards left, he cast his Genjutsu. Soon enough, the guards fell asleep.

Seijuro didn't merely cast a genjutsu on the guards, but on reality itself—as this was the power of his Kekkei Genkai.

He had a Genjutsu so potent on the world that no one could even notice him.

No one noticed as he entered the room. No one noticed when he arrived in front of the seal—not even Chōmei.

The Bijū's vision only saw the four guards keeping watch and nothing more, because that was what it was allowed to see.

Reality was whatever Seijuro wanted them to see, and right now, Chōmei's reality was this.

Seijuro walked to the seal. Without interfering too much with it, he slightly loosened it.

To put it more simply, he applied more lubricant to it, making it easier for the Tailed Beast chakra to leak out.

As for Chōmei—

The Seven-Tails noticed cracks in the seal. From its field of view, those stupid humans seemed to have not noticed it yet.

Heheheheh.

The lucky number seven was truly showcasing why it was the luckiest of the Tailed Beasts. Finally, freedom at last.

Chōmei began to rush toward the cracks...

Back to Seijuro.

He had already placed his scroll down and waited for the Bijū to take the bait. Why, you may ask? Well, simple—when Takigakure checked their seal, all they would really see was Chōmei trying to leave the seal instead of someone forcefully taking the Bijū away.

And with the false memory he implanted within the Jōnin present, they would have the memory that Chōmei... was trying to escape.

Hehe.

As the Tailed Beast chakra came pouring out of the seal, Seijuro made the Ram hand seal.

"Seal." Chains came out of his scroll, sealing away the Bijū chakra within them.

This seal was his masterpiece. It could hold a shit-ton of chakra—like a shit-ton. Considering that was its main purpose, it was doing quite well. He watched as more and more chakra poured into the seal.

Ten times his chakra amount was pouring out of this thing... a second.

Tailed Beast chakra was truly no joke.

Seijuro saw the chakra... just so much. That was like a hundred times his chakra now. Damn.

Though his gaze never left his seal or the amount of Bijū chakra left in the seal that Taki had.

After 80 seconds—which was 20 seconds more than he thought it would take—he was able to take out 90% of the Bijū chakra.

Before Chōmei's consciousness itself could transfer over—

Seijuro quickly ran through some hand seals.

"Seal." He tightened the seal around the beast.

In Chōmei's vision, the four remaining shinobi poured all of their chakra into the seal, forcing the lid of its seal shut.

The beast was annoyed... so close to victory.

It had expended so much chakra. Now the Bijū looked closer to a chibi than anything else.

The Bijū was annoyed.

Though... the beast did find... some bugs inside its seal...

...

...

Crunch.

Seijuro, looking at this scene, smiled a bit. So Bijū could look cute—that was a fun food for thought.

With six seconds remaining, he closed the seal, closed his own seal, stored it somewhere, and left.

The second he left the room, some guards barged into the room, looking around. They had felt Chōmei reacting once more. This was such a bad time—Chōmei decided to go insane the one time they were being attacked.

Fucking Bijū.

Looking around, they could see... their own guards working tirelessly to close the seal.

A bead of sweat rolled down their temples as the seal was finally closed.

Holy shit. The Nanabi almost escaped. That was a close one.

Time skip.

Seijuro appeared roughly three miles away from the seal chamber. From there, he removed his disguise and used a Fireball Jutsu to burn it—just in case. Every and all weapon used for the heist were properly destroyed, professionally.

Sure, he was framing the Stone Village, but it had to look semi-presentable.

Time to join back his team.