Although Minato Namikaze hadn't yet named the jutsu, the Tag System had already recognized it as an A-rank technique.
Even though Shūichi Hoshita didn't create the jutsu himself, he played a critical and groundbreaking role in its development.
As for the previous technique, Seal Technique – Memory Palace, it didn't quite reach A-rank.
But now, Shūichi had taken a big step forward. He was just four A-rank jutsu away from acquiring the "Pioneer" tag.
At that moment, Minato flashed to a large tree, pressing the chakra ball in his right hand against it. With a resounding boom, the tree was completely pierced through.
"Amazing!" Sanyō Kurama exclaimed. "A jutsu without hand signs—this is undoubtedly perfect for Minato-sensei!"
"What should we call it?"
Minato retracted his hand, looking at Shūichi with a smile. "Let's call it Light Wheel Popsicle Initiating Shūichi Yarn Ball!"
Shūichi covered his face in exasperation, while Shisui Uchiha and Sanyō stood there, stunned.
Seeing their reactions, Minato chuckled awkwardly. "What? You don't like the name? It has a lot of sentimental value, don't you think?"
Shisui and Sanyō also gave awkward laughs.
Shūichi cleared his throat and suggested, "Minato-sensei, maybe go with something simpler! How about thinking about why you created this jutsu in the first place?"
Minato's expression softened as he recalled Uzumaki Kushina and thought of the Nine-Tails. His face grew serious for a moment but quickly returned to his usual warm smile. "In that case, let's call it Rasengan."
(T/N: There are other names for Rasengan, like Spiralling Sphere, Spiral Chakra Sphere, Power Strike..)
Sanyō immediately raised his hand in agreement. "That's perfect! Rasengan reflects the way the chakra rotates in this jutsu."
Shisui nodded eagerly, worried that Minato might come up with another strange name.
And so, the Rasengan was born.
With the jutsu successfully completed, Minato immediately offered to treat everyone to a big meal, which Shūichi and the others gladly accepted.
No way they were missing out on that!
But before that, they didn't want to waste the rest of the morning.
Minato became their sparring partner, while Shūichi took the opportunity to practice not only Dance of the Crescent Moon but also the medical ninjutsu Yin Healing Wound Destruction.
Both techniques required real combat experience to master since their key lay in perfect timing.
Time flew by, and by noon, the four of them shared a hearty meal before parting ways.
Shūichi headed to Konoha Hospital to continue training with Tsunade, while Minato went to a place covered by a barrier.
"Kushina!"
Minato arrived at a house.
The upstairs window opened, revealing a red-haired woman with an obviously annoyed expression. "Weren't you supposed to be training somewhere else? Why are you back?"
Minato wasn't bothered by Kushina's attitude and smiled. "Thanks to Shūichi's help, the new jutsu is complete, so I came to tell you."
"Shūichi?" Kushina was puzzled. "You mean that genius kid you mentioned?"
She knew how talented Minato was, so it surprised her that a jutsu that had troubled him for so long could be solved by a six-year-old.
Minato nodded with a smile. "Yes, Shūichi Hoshita. He has a remarkable talent for understanding jutsu."
He extended his right hand, and a Rasengan quickly formed. "See? This is the jutsu. I call it Rasengan, and I created it specifically to protect you!"
Kushina stared at the Rasengan in Minato's hand, stunned.
It looks so much like the Tailed Beast Bomb used by the Nine-Tails!
Unknowingly, tears began to stream down Kushina's cheeks.
Ever since Minato started spending so much time developing the new jutsu, they hadn't trained in sealing techniques together as often.
She had thought he was losing interest in her, but now...
Seeing Minato's gentle smile, Kushina's heart softened, and she suddenly leaped out of the window. After hesitating for a moment, she threw herself into Minato's arms.
Minato was momentarily surprised but then broke into a radiant smile.
He dispersed the Rasengan and hugged Kushina tightly. "Kushina, I'll protect you well!"
...
While Minato Namikaze was enjoying the warmth of a beauty in his arms, Shūichi Hoshita was on the receiving end of a beating.
"How can you master Yin Healing Wound Destruction without taking some hits?" Tsunade had said this with complete confidence.
Shūichi couldn't help but think that this wicked woman had discovered some kind of twisted pleasure in beating him up!
And so, time slowly passed.
For Shūichi, vacations meant more time for training.
He focused on medical ninjutsu, swordsmanship, basic taijutsu, physical conditioning, and speed reaction training with Shizune, Guy, and the others.
Nearly a month went by, and the training method Shūichi had initially proposed had already been improved several times.
It started with mud balls, then moved on to clay. Kakashi further refined it by using different colored chalk, special round-shaped chalks, and drawing a circle to limit the area.
They then had to catch a specific colored chalk ball within the circle.
...
Before he knew it, three days had passed.
On this particular day, while Shūichi was practicing the Chakra Scalpel medical ninjutsu at Konoha Hospital, he suddenly heard that Minato Namikaze had been severely injured and rushed to the hospital.
Minato Namikaze, seriously injured?
Shūichi was momentarily stunned, but then quickly hurried over. Outside the hospital room, he saw not only Tsunade but also Hiruzen Sarutobi.
"Lord Third Hokage, Lady Tsunade!" Shūichi quickly approached and greeted them.
"Shūichi!" Hiruzen Sarutobi nodded and then reassured him, "Don't worry, Minato will be fine."
Shūichi nodded and noticed that Tsunade didn't look too happy. He then peered through the glass into the hospital room.
Inside, the entire medical team was at work, with Nonō Yakushi among them. A slug was also perched on Minato's chest.
"A wound that pierced through his chest?" Shūichi speculated and immediately connected it to the Nine-Tails and the Jinchūriki of the Nine-Tails.
"It seems the Nine-Tails' seal isn't very stable right now," Shūichi thought to himself.
But it made sense. Uzumaki Kushina was only around fourteen or fifteen years old, roughly the same age as Minato.
Whether it was her sealing techniques, her chakra level, or most importantly, her mastery of the Adamantine Sealing Chains, she was certainly not at her peak.
"But I recall that Uzumaki Kushina had mission records... was it before she became a Jinchūriki? Or were there some afterward as well?" Shūichi silently wondered.
Time slowly ticked by.
Three hours later, a masked medical ninja emerged from the room with the slug. "Lord Third Hokage, Lady Tsunade, Minato is out of danger!"
Hiruzen Sarutobi was finally at ease and nodded. "Thank you for your hard work!"
Tsunade took the slug and said, "Since everything is fine now, I'll be going." With that, she turned and left.
Hiruzen Sarutobi sighed, looking a bit awkward, took a drag from his pipe, and said, "Shūichi, please take care of Minato."
Pretending not to notice anything, Shūichi quickly bowed. "Yes, Lord Third Hokage, you can leave Minato-sensei to me!"
"Good!" Hiruzen nodded in satisfaction and then also left.
Shūichi looked back into the room and immediately sent a shadow clone to notify Shisui Uchiha and Sanyō Kurama.
(End of Chapter)
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