"Your Summoning Beast is indeed powerful, but it's currently restrained by my Sealing Technique. How will you handle this?"
"You think you're the only one who knows Sealing Techniques? Even five-year-olds in the Leaf could perform better than this crude sealing method."
Hayato Ren retorted without hesitation.
Under Ebizo's astonished gaze, Hayato Ren formed hand signs with one hand and effortlessly released the Limb Heavy Sealing from Charizard's body.
After accomplishing this, Hayato Ren looked at Ebizo with disdain, as if saying, "Is this all you've got?"
Meanwhile, his right hand hidden behind his back trembled slightly. Fortunately, he had frequently studied the Sealing Technique scrolls given to him by Uzumaki Mito.
Otherwise, he might have truly met his downfall in this unexpected situation.
Suddenly, the overwhelming yellow sand came to an abrupt stop. At the same time, Jiraiya's somewhat arrogant laughter echoed through the area.
"Hahaha! Even the One-Tail is no match for the mighty Toad Sage!"
Everyone turned toward the sound and saw a disheveled Jiraiya standing with one foot on the One-Tail Jinchuriki, Bunpuku.
White Fang stood nearby with a dead-fish expression, clearly unable to bear watching Jiraiya's behavior.
Although both Jiraiya and White Fang bore numerous wounds of varying sizes and had nearly exhausted their Chakra, they had ultimately succeeded in repelling the One-Tail, forcing it back into the Jinchuriki's body.
This marked the complete failure of the Sand Ninja's assault. Moreover, with the capture of the One-Tail Jinchuriki, they would have to pay a substantial ransom to the Leaf to secure his return to the Sand Hidden Village.
Chiyo shot a resentful glance at Hayato Ren before turning to Ebizo and shouting, "Let's go. The Leaf has won this time."
With that, Chiyo and Ebizo turned and left without a trace of hesitation.
Simultaneously, the Sand Ninjas engaged in combat with the Leaf shinobi began to retreat in disarray.
After suffering significant casualties, the Leaf ultimately emerged victorious in the war against the Sand Ninja.
The ensuing negotiations would be left to Sarutobi Hiruzen and the others.
With the loss of the One-Tail, unless the Third Kazekage had lost his mind, there was no possibility of continuing the fight against the Leaf. Like the Leaf, the Sand Ninja faced threats on two fronts, as they were also locked in a fierce struggle with the Rain Ninja in the Rain Country.
"Teacher, has the war ended?" Hayato Ren approached Tsunade and asked softly.
Tsunade nodded but remained silent.
Although her battle with Chiyo had seemed evenly matched, she hadn't managed to destroy a single one of Chiyo's Puppets. Had the fight dragged on, Tsunade would have undoubtedly been defeated.
For someone with as much pride as Tsunade, this outcome was utterly unacceptable.
This battle made Tsunade realize her many shortcomings. Relying solely on her Super Strength was not enough to dominate the Shinobi World—she needed to develop a stronger Ninjutsu.
Due to the butterfly effect, Tsunade's Strength of a Hundred Sealings Technique and Yin Seal were about to emerge ahead of time.
Hayato Ren was clearly unaware of this, as he was currently busy seeking credit from Tsunade.
"Did you see that, sensei? If that Ebizo hadn't run away so fast, he'd be a pile of ashes by now. I single-handedly intercepted the Sand Village's Anbu commander - that kind of achievement should be enough for a promotion to Jonin, right?"
...
A few days later, the village's arrangements were finalized.
Except for White Fang and a few ninjas remaining at the main camp, the rest returned to the Leaf under the leadership of Tsunade and Jiraiya.
The shadow of war had completely dissipated, and the entire Leaf camp was filled with a joyful atmosphere.
At this moment, Hayato Ren was proudly showing off his newly acquired Jonin Vest in front of Tsunade.
"Look, sensei, don't I look particularly handsome in this? I really am a genius ninja, becoming a Jonin so quickly."
That's right, due to his outstanding performance during the Sand Village's attack, Hayato Ren had been exceptionally promoted to Jonin.
Becoming a Jonin at such a young age was unprecedented in Leaf's history. War truly was the best opportunity for ninja rank advancement.
In peacetime, even if Hayato Ren had the capability, he would have had to wait several years and complete both the Chunin and Jonin exams before succeeding.
Unlike now, where he had become a Jonin while most of his peers were still Genin.
Facing Hayato Ren's antics, Tsunade wasn't in a good mood.
She just responded perfunctorily with some "uh-huhs" and "ohs," then fell into deep thought with a worried expression.
Tsunade was currently struggling with her new ninjutsu.
The beginning is always the hardest. Although she had decided to develop new ninjutsu, Tsunade herself had no clue where to start. Which direction should she take?
Noticing Tsunade's distraction, Hayato Ren asked:
"We've already won, so why do you still keep that sour look on your face, sensei?"
Looking at Hayato Ren's face so close to hers, Tsunade sighed and told him about the troubles on her mind.
However, Tsunade clearly didn't hold much hope for Hayato Ren.
After listening to Tsunade's explanation, Hayato Ren thought for a moment, then said:
"Sensei, why don't you develop a ninjutsu that stores unused chakra for later use? Or one that uses chakra to stimulate cell division during battle to accelerate wound healing without affecting combat?"
Hearing this, Tsunade's eyes immediately lit up. Hayato Ren's ideas were like a bolt of lightning, instantly cutting through the gloom in her heart.
These two ninjutsu could perfectly combine - one could store chakra during normal times, while the other required massive amounts of chakra.
Combining the two could create a synergistic effect where one plus one equals more than two, potentially even replicating the near-immortal effect similar to that of the First Hokage, Hashirama Senju.
Thinking of this, Tsunade couldn't help but grab Hayato Ren's face and plant a firm kiss on it.
"You really are a genius, kid. I've already decided on names for those two ninjutsu. The one for storing Chakra will be called the Yin Seal, and the one for healing yourself will be called the Hundred Healings Technique."
After that, Tsunade immediately began intensive preparations for developing the Yin Seal.
Once she had a clear direction, everything that followed fell naturally into place.