The Genjutsu Devil of Konoha

Welp, it took Seijuro a while — by a while he meant roughly 5 minutes — he didn't eat much this morning, still he puked his guts out.

Puking so much, truly shameful behavior.

Disgusting shit.

Well, he was still like 10-ish, give him a break. He forgot his birthday sometimes — he had way too much information to sort through in his mind.

Meanwhile, Tsunade could be seen observing them.

Killing wasn't an art. It wasn't glory. It was a scar — silent, cold, and permanent. Once you kill, you can never really go back again, whatever innocence you had before is practically gone.

Some people find some thrill in it, while others grow numb to it. Some even quit being a ninja and have PTSD for the rest of their lives.

The ninja life wasn't for everyone.

She looked at them all — Nawaki, trembling but still standing... Mikoto, breathing hard, eyes spinning with trauma and adrenaline... and Seijuro, doubled over near the tree line, vomiting quietly, fist clenched into the dirt like it was the only thing keeping him chained to the world.

She stepped forward.

Tsunade: "...That's enough for now. You've done well."

No one answered.

Her voice softened slightly. "You're being given a month off-duty. Mandatory."

Mikoto blinked. "Sensei?"

Tsunade: "You need time to process what you did. All of you. You killed, and while it was necessary, that weight doesn't go away overnight."

Nawaki nodded, still pale.

Tsunade glanced at Seijuro, whose shaking had stopped, but his silence was deafening.

Tsunade: "Even you, genius."

Seijuro wiped some of the vomit. Sure, he did vomit, but not as much as she may have seen — yes, a fucking illusion was shown.

Why, you may ask? Not for shits and giggles — it had a purpose.

It worked for him — testing out his skills and constantly sharpening them by using them did wonders.

Had to show some form of childliness, or at least some sign he wasn't a robot.

Because he felt like people just saw him as this calculating machine with barely any emotions...

...

[Time Skip: One Week Later — Seijuro, Alone in the Forest]

He sat cross-legged atop a boulder surrounded by waterfalls, still and silent.

He had gone through the event in his mind dozens of times. Not the kills — but the hesitation. That moment of doubt after the victory.

That moment where he thought he might not be able to do this.

"Unacceptable."

In his palm rested Kyōka Suigetsu, the illusion blade that mirrored his will — and it had seen his weakness.

Not again.

He refused to falter like this again. He was a ninja now... killing should come easy to him.

So... for the next hour or so, he recreated the event of that day, had it play over and over again, until Seijuro had grown a resistance to the killing.

[Two Weeks Later — Konoha Library, Jōnin-Only Section]

The guards at the front of the restricted Jōnin archives didn't even glance twice at the grey-haired Jōnin walking in with a stack of scrolls and a tired look in his eyes.

That's because, to them, he was a Jōnin. Courtesy of Kyōka Suigetsu's absolute sensory control and Seijuro's perfect chakra cloaking.

Once inside, he kept the illusion up — one mistake would give him away.

"I will not rely solely on tricks and illusions forever," he would say calmly.

His eyes scanned the jutsu archives. His target was clear.

🔥 Katon: Gouryuuka no Jutsu (Fire Release: Great Dragon Fire Technique)

A-rank Fire Release jutsu. High-speed chakra compression technique that creates multiple massive fire dragons that spiral with heat capable of melting through stone. Can be used to mark targets for Genjutsu coordination due to the heat distortion.

Seijuro stared at the scroll for a long moment, then took it.

For the next two weeks, he trained relentlessly. Waterfall meditation. Flame control. Chakra shaping drills that left his lungs aching and his skin burned.

Failure wasn't an option.

He didn't eat with the others. Didn't sleep in his bed. Didn't even speak to Mikoto or Nawaki.

He trained.

And thus, for the remainder of the time he had, he trained like his life depended on it, upgrading his skills and so on.

The shit, really — he had mastered the A-rank jutsu quite easily. Of course he did — with his near-perfect chakra control he could do it. Granted, he could only use the jutsu like two times before running out of chakra.

So that's why he decided to imbue some wind chakra into it. By doing this, he could use like 50% less fire chakra into the input, but still get like 125% output — fire needed oxygen to burn, after all. He couldn't lower the input too much.

Well, this meant that he could use this jutsu four times in a fight instead of two.

How nice. He might need to have some light water on his lips just in case, so that his shit doesn't dry out too easily or something like that.

Now to think of a cool name for his technique. Also, this wasn't a Kekkei Genkai — this wasn't Scorch Release. Scorch Release would require like a perfect 50/50 mix.

The mix that Seijuro was doing was not perfectly 50/50. Like 50% fire chakra, 10% air, and 40% chakra... i.e., the shit being burned.

So yeah.

Now for the name.

🔥💨 Katon-Fūton: Gouen Ryuusha no Jutsu (Fire-Wind Style: Great Flame Dragon Chariot Technique)

Seemed nice enough.