After receiving the Third Hokage's permission, Nobuhiko began looking through the Scroll of Seals.
First up was an introduction to the crown prince's signature ninjutsu-the Multiple Shadow Clone Technique.
Better to strengthen myself than rely on human-wave tactics. Not learning that!
Nobuhiko looked at the next one.
The Four Symbols Seal.
Kushina knows this sealing jutsu. I'll have her teach me later.
Only an idiot passes up a freebie!
Not learning this one either!
Next was the Eight Gates Released Formation.
Takes too long. I could learn several more ninjutsu in that time. Not learning that!
Nobuhiko then read through the introductions to every ninjutsu recorded in the Scroll of Seals.
Tsunade promised that once I could cast A-rank Water Release Ninjutsu, she'd personally come to the Third Hokage to ask for the S-rank Water Release Ninjutsu for me. No need to consider those now.
Kushina should know all the sealing jutsu recorded on the scroll, too. I'll have her teach me all of them later. No need to consider those now either.
As for Impure World Reincarnation, Mutually Multiplying Explosive Tags, the Bringer-of-Darkness Technique, and S-rank ninjutsu of other elements, none were within his consideration.
There were only two ninjutsu Nobuhiko was torn between now.
The Flying Thunder God Technique and Fivefold Rashomon!
He really coveted the Flying Thunder God Technique!
But he also knew that although he was a transmigrator with extraordinary talent, that wasn't a cure-all. Talent for space-time techniques was far too mysterious.
If he really chose the Flying Thunder God Technique, learning it would be ideal, but failing to learn it would be a devastating loss.
Fivefold Rashomon was much simpler. It was a summoning technique, easy to pick up, and its greatest drawback was its enormous chakra consumption.
But for someone with the Senju Clan's bloodline like him, that drawback might as well not exist.
Nobuhiko kept weighing the pros and cons in his mind before finally making his decision. This was the one.
"Lord Hokage, I choose the Fivefold Rashomon Technique!"
"Oh? Are you sure?"
The Third Hokage was a little surprised to hear that Nobuhiko wanted to choose this ninjutsu.
"I'm sure, Lord Hokage!"
"As long as you're sure. I'll now undo the seal on this ninjutsu."
"You may only read it here in my office until you've memorized everything. You must not disclose it!"
The Third Hokage gave Nobuhiko these instructions sternly.
"Yes, Lord Hokage!"
The Third Hokage formed hand seals, then placed his left hand over the spot in the Scroll of Seals where Fivefold Rashomon was recorded.
Before long, a mass of densely packed text appeared.
With the advantage of being a transmigrator, Nobuhiko took little time to memorize everything about Fivefold Rashomon.
"Any questions?"
Seeing Nobuhiko looking at him, the Third Hokage thought he had encountered something he didn't understand.
"No questions. I've memorized everything, Lord Hokage."
Nobuhiko scratched his head and answered modestly.
"Is that so? With your current physical condition, practicing summoning Single Rashomon will suffice. Don't practice Triple or Fivefold Rashomon yet."
"Yes, Lord Hokage! I'll train diligently in this ninjutsu and strive to become your Strongest Shield as soon as possible!"
Nobuhiko started making grand promises again.
"Good. I look forward to that day!"
The Third Hokage was delighted to hear Nobuhiko's words.
"Loy!"
"Alty!"
Nobuhiko stood tall, his eyes fervent as he proclaimed his loyalty.
"Good, good, good. Go back and train, Nobuhiko. If there's anything you don't understand, remember you can come ask me anytime."
"Lord Hokage, banzai!"
Watching Nobuhiko leave, the Third Hokage smiled so broadly that his face creased.
After returning to the old Senju residence, Nobuhiko began recalling what he remembered about Rashomon from his previous life.
Rashomon was a ninjutsu primarily used for defense. It was extremely sturdy, and ordinary ninjutsu couldn't damage it at all.
Destroying Rashomon required an attack at least on the level of a Tailed Beast Bomb. Things like Fang Over Fang boring through Triple Rashomon were pure nonsense, original to the anime.
Rashomon had three forms: Single Rashomon, Triple Rashomon, and Fivefold Rashomon.
Furthermore, summoning Rashomon consumed enormous amounts of chakra. Even Orochimaru could only summon Triple Rashomon. However, with his Senju bloodline, Nobuhiko was confident he could cast Fivefold Rashomon in the future.
The first Rashomon gate was the imposing-looking gate of ultimate defense. Its function was simple frontal defense, withstanding the enemy's attack to the greatest extent possible.
The second Rashomon gate served to weaken the attack's power as much as possible.
The third Rashomon gate served to disperse the attack's power as much as possible.
Thus, summoning Single Rashomon could only provide basic defense.
But if Triple Rashomon was summoned, any attack passing through those three gates would be greatly weakened.
The fourth and fifth Rashomon gates served a similar purpose to the third, dispersing attacks and spreading out their force, only to a greater degree.
In the original story, the Fivefold Rashomon summoned by the First Hokage could alter the trajectory of a Tailed Beast Bomb fired by the Nine-Tails at full strength and enhanced by Madara Uchiha.
After all, in the original story, half of the Nine-Tails could easily deflect Tailed Beast Bombs fired by five tailed beasts, and a Tailed Beast Bomb fired by half of the Nine-Tails could carry the combined Tailed Beast Bomb of five tailed beasts into the sky.
That comparison made the strength of Fivefold Rashomon clear.
Nobuhiko knew he couldn't avoid participating in the Third Shinobi World War. Given that, learning Rashomon offered far greater returns than Flying Thunder God.
If he learned Rashomon, Nobuhiko was confident he could cast at least Triple Rashomon by the time he participated in the Third Shinobi World War. Even Fivefold Rashomon wasn't impossible.
Judging by Rashomon's performance, Triple Rashomon would be enough to alter the trajectory of a Tailed Beast Bomb fired by any single one of the One-Tail, Two-Tails, Three-Tails, Four-Tails, Five-Tails, or Six-Tails.
That would be enough.
During the Third Shinobi World War, if Nobuhiko could prevent the damage caused by Tailed Beast Bombs, Tsunade could both treat large numbers of wounded and slaughter enemies across the battlefield.
Combined with Tsunade's status as the First Hokage's granddaughter and the Third Hokage's student, he refused to believe she couldn't beat the Little Sun.
Once Tsunade became Hokage, he could use his Sharingan however he wanted and would no longer have to act subservient in front of the Third Hokage. He refused to believe the Third Hokage would dare strip Tsunade of her power!
As for Tsunade's fear of blood, he would stay by her side for the next seven years. He refused to believe he couldn't cure a mere case of hemophobia!
But if he learned Flying Thunder God, Nobuhiko truly had no confidence at all. He couldn't even guarantee that he would learn it before participating in the Third Shinobi World War.
Besides, once Tsunade became Hokage, wouldn't she be able to browse the Scroll of Seals whenever she pleased? And if Tsunade could browse the Scroll of Seals whenever she pleased, didn't that mean he could, too?
Then he could learn whatever ninjutsu he wanted. Who could stop him? Danzo?
Once Tsunade took office, Danzo would be the first person he settled scores with. He had to kill that old bastard, or the hatred in his heart would never fade!