Beating Up Orochimaru, the Principle of Flying Thunder God

"Lord Dan, what are you talking about?" Orochimaru was dumbfounded. He truly could not keep up with Uchiha Dan's pace.

"You helped Tsunade and me, and I'm happy about that. But I don't like that you used Tsunade." Uchiha Dan instantly activated his Three-Tomoe Sharingan, murderous intent spreading from him.

"Lord Dan, please calm down. What we need to discuss is the research..." Orochimaru hurriedly explained.

"We'll talk about the research after I vent my anger. Run. If you run somewhere with more people, you'll get beaten a little less."

With that, Uchiha Dan punched Orochimaru in the face, sending him flying.

After crashing through a wall, Orochimaru rode the momentum and landed in the street.

Before Orochimaru could react, Uchiha Dan appeared again and punched the other side of his face, knocking him flying once more.

The huge commotion from the fight immediately drew the attention of the surrounding people. This was already a bustling district, and a crowd of spectators quickly gathered.

Orochimaru did not fight back throughout the entire encounter, allowing Uchiha Dan to attack him.

If letting Lord Dan vent his anger meant he could join his research team, Orochimaru truly did not mind taking a vicious beating.

After all, Uchiha Dan could not possibly beat him to death. Even if he crippled him, he would heal him afterward.

Orochimaru had not yet gone dark at this point, but his pursuit of research had always remained unchanged—so pure and resolute.

Besides, he really had used Tsunade to scheme against Uchiha Dan, so it did not matter.

After knocking Orochimaru away again, Uchiha Dan suddenly vanished from where he stood and appeared in the direction Orochimaru was flying.

He kicked Orochimaru, sending him flying back, and Uchiha Dan appeared in front of him again.

This scene left countless passersby staring in stunned disbelief, including several ninjas.

"Stop!"

A minute later, a group of ninjas rushed over and shouted for them to stop.

Uchiha Dan flashed over and appeared at Tsunade's side.

Orochimaru, meanwhile, checked his body. Once he discovered that he had not suffered any serious injuries, he stood up.

At that moment, Orochimaru suddenly understood what Uchiha Dan was trying to do.

Uchiha Dan had looked fierce when he hit him just now, but he had actually held back with every blow.

So he had been using this as an excuse, all to give himself a chance to display the Flying Thunder God Technique.

Perhaps Uchiha Dan was planning to lay his cards on the table with the Konoha High-Ranking Officials.

No, perhaps calling it the Flying Thunder God Technique was no longer appropriate, because that was genuine teleportation—teleportation that did not require the assistance of a jutsu formula.

However, Uchiha Dan still called it Flying Thunder God, too lazy to come up with a new name.

A month ago, when Uchiha Dan had been thinking of combining one of his old ideas with the Flying Thunder God Technique, a flash of inspiration had struck, and his body appeared one meter away from where it had been.

Just then, the system notification sounded.

[Detected that the host's mastery of Flying Thunder God has surpassed Tobirama Senju. Reward: 1000 Research Points!]

When he obtained the system, Uchiha Dan had known that the talent of Tobirama Senju he had acquired could be upgraded.

However, the upgrade required 10,000 Research Points.

And he could only obtain Research Points by surpassing Tobirama Senju.

The advancement of Flying Thunder God was the first time he had obtained Research Points, and it had left him excited for a long time.

Uchiha Dan had never doubted that he would surpass Tobirama Senju in many areas in the future.

After all, Tobirama Senju had conducted research by squeezing out tiny bits of time from his busy schedule every day. His main focus had also been ninjutsu, and Hashirama Senju had relentlessly kept him in check, yet he had still reached such heights.

Uchiha Dan had far more time than Tobirama Senju, and his research covered far more than just ninjutsu. On top of that, no one was holding him back.

With the same talent, more time, and better conditions, if he still could not surpass him, would he not be useless?

As for the advancement of Flying Thunder God, it was not actually that complicated.

Many people knew how powerful Flying Thunder God was, yet knew nothing about its underlying principle.

Uchiha Dan was probably the only living person who understood the most fundamental principle behind the Flying Thunder God Technique.

Before the evil Tobirama Senju created the Flying Thunder God Technique, there had been only one ninjutsu in the entire ninja world capable of traversing space for teleportation.

That was the Summoning Technique!

But most people only paid attention to whether a summoned beast was powerful. Very few ever considered why summoned beasts could be called across time and space in an instant.

Perhaps some had pondered the question, but they could never figure it out.

The only one who had understood the answer was Tobirama Senju.

Of course, Uchiha Dan now understood it as well.

No one knew who had invented the Summoning Technique.

But Uchiha Dan admired that person deeply, even regarding them as a genius beyond compare.

A legendary spatial ninjutsu!

Yet it had been simplified to the point where any ninja could learn it, becoming something utterly commonplace.

Precisely because it had been simplified to such an extent, one could never learn anything about space-time ninjutsu from the Summoning Technique alone.

Of course, that applied to everyone else. A genius like Tobirama Senju was not among them.

Long ago, the evil Tobirama Senju had realized that using the Summoning Technique allowed one to teleport across space between oneself and one's summoned beast.

So he wondered whether, by studying it in reverse, he might be able to understand the principles behind spatial travel.

It was on that foundation that Tobirama Senju grasped some of the deeper mysteries of spatial teleportation and created the Flying Thunder God Technique.

When a ninja used the Summoning Technique, they served as two spatial nodes alongside their summoned beast.

They then used a Contract Scroll to open a temporary space-time passage between those two spatial nodes, allowing instantaneous travel across space and time.

At the time, the evil Tobirama Senju had a sudden thought: if he could combine the Summoning Technique with the Reverse Summoning Technique and summon himself, could he then travel through space at will?

It sounded simple, but the very idea was a paradox.

Summoning oneself was like stepping on one's own foot to lift oneself into the air—it completely defied the rules.

First, it was impossible for someone to form a summoning contract with themselves and become their own summoned beast.

Second, even if that rule did not exist, and someone could make a contract with themselves and summon themselves—

Summoning oneself from the space one occupied into that very same space would cause the overlap of the same space at different points in time, resulting in spatial collapse and annihilation.

Forget summoning oneself out—the caster would immediately be swallowed by space and cease to exist.

But Tobirama Senju was not someone who gave up easily.

He first spent a long time thoroughly analyzing the Summoning Technique and the Reverse Summoning Technique, painstakingly teasing apart the fundamental principles by which the Summoning Technique connected two spatial nodes for teleportation.

With that, Tobirama Senju bypassed the Summoning Technique entirely.

Based on those principles, he developed a method of linking two spatial nodes and establishing a transportation passage between them.

Throughout this process, Tobirama Senju continuously experimented with objects.

At first, he chose small, hard objects, such as kunai and Shuriken.

Once kunai and Shuriken could be teleported, he gradually switched to larger, softer things.

After that, he began experimenting directly on all kinds of small animals.

Only at the end did he move on to people, and then Tobirama Senju himself.

The process was long and took Tobirama Senju several years.

Through his constant experiments and refinements, he finally created the Flying Thunder God Technique, capable of soaring through the heavens and burrowing through the earth.

A monster truly was a monster.

While others could not even get started with the Flying Thunder God Technique, Tobirama Senju had created it from nothing in just a few years.