"If it's practice, this is what I'm least afraid of right now." Having mastered the most buggy training mode in the Naruto world, Duke indicated that the thing he has the most right now is time.

"Multiple Shadow Clone Technique!"

Boom! The white smoke dissipated, and the number of shadow clones doubled.

"Goal: learn the Rasengan before the sun sets."

"oh----"

"It's too easy, just watch me!"

The shadow clones cheered each other on and, together with the original body, threw themselves into the frenzy of training.

"Thank you for your advice. I learned a lot today. Thanks to you, I believe more firmly in my dream." Minato smiled knowingly.

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"Senior Zixiao told me before that the Third Hokage had originally arranged for Duke to be assigned to my team. However, the night before the division, his bloodline awakened, so Senior Zixiao made an exception and served as the jonin instructor. Senior is the head of the Anbu, and he is committed to being an instructor, which shows that the village attaches great importance to this matter." Minato spent a lot of time talking. In a nutshell, this kid has been noticed by the top leaders, so you can forget about it.

After that, he condensed a Rasengan in his palm again, and then the cold air passed through his palm and entered the rotating Rasengan with the ice chakra. To everyone's surprise, the Rasengan did not reject the cold air, but took advantage of the situation to accept the chakra of the ice chakra, and then underwent a drastic change in form.

"This number cannot be wrong, he must be one of my clansmen. No, I have to find the old man Sandai and ask him to learn the sealing technique of the Uzumaki clan." Kushina stood up and planned to find the Sandai and ask for Duke.

"It's nothing, Immortal, it's okay for me to force myself sometimes!"

"I'd better do it myself...I don't want to bother the lecherous immortal."

"Are you talking in your sleep?" Jiraiya patted Duke's head. Even the creator Minato had no clue, so where did you get the confidence as a latecomer?

I have never seen such a shameless person! Duke decided to concentrate on his training and ignore Jiraiya, leaving him alone. Even so, Jiraiya's words touched Duke's heart: the only secret to success is hard work. Intelligence comes from diligence, and genius comes from accumulation. There are no geniuses in this world, only geniuses who work hard. People who waste their time imagine that there are miracles in this world, but they don't know that the name of miracles is - hard work.

The violent cold air swept around the shadow clone in all directions, turning everything into ice without restraint. While freezing, the cold air also generated a strong twisting force, tearing everything frozen into pieces. Soon, an iceberg without any rules appeared in the original place. Minato's clone only lasted for a moment before it turned into smoke and disappeared due to the fatal injury.

"This is..." Among the three, Minato was the most shocked. He had spent a lot of effort to study the changes in the properties of the Rasengan, but he did not expect that someone could succeed in changing the properties on the first day of learning the Rasengan. This hit him hard.

"I'm afraid that's unlikely." Minato held back the impatient Kushina and explained patiently, "He has been divided into classes and has his own team, and the captain is Senior Zixiao."

"I can't say anything else, but when it comes to medical treatment, I'm a genius." Duke said confidently after healing his right hand. Because of the good foundation he had in his previous life, he made rapid progress in learning medical ninjutsu.

"Shadow Clone Technique!"

"What? A bunch of shady guys!" Kushina kicked the weeds under her feet to vent her dissatisfaction.

"Of course, don't you see whose brother he is!" Kushina said proudly, as if Jiraiya was praising her.

"I don't care if people say I'm dreaming. Dreams are only worth realizing if they're laughed at!" Duke got up, faced the sunset, and let out a cry that resounded through his heart.

"However, I still don't seem to know how to change the nature of chakra..." Duke scratched his head and said embarrassedly. He realized something was wrong after he finished pretending.

In the crowd, a dusty clone raised one hand high. In his palm, a blue-glowing Rasengan had already taken shape. Duke released the seal and retracted the clone. A strong sense of fatigue came back to him. He slumped on the ground, condensed a Rasengan with one hand, and smiled foolishly. The concentrated chakra rotated at high speed in his palm, with tearing force, as if he was holding a small typhoon, powerful enough to penetrate gold and split stone.

"..." Jiraiya and the other two looked embarrassed. Their enthusiasm was dealt a heavy blow and they were deceived to a great extent.

Duke's training army is in full swing in exploring the Rasengan. During this period, Duke also thought about using the shadow clones to make the Rasengan like Naruto, but finally gave up the idea. Using the Rasengan with the shadow clones is equivalent to using the seals to cast the Rasengan, which loses the original intention of the no-seal ninjutsu, and the gain is not worth the loss. Moreover, the fight between ninjas changes rapidly, and every second counts.

"In that case, I won't be polite! Teacher Minato, take that, Ice Release Rasengan!" Duke raised his hand and pressed the Rasengan on Minato's shadow clone, and a burst of cold air threw him away.

Time passed slowly as Duke continued to practice and heal until the sunset.

"Next, we will study the changes in the properties of the Rasengan!" Duke, despite his fatigue, prepared to proceed to the next step of practice.

"It's so difficult!" Duke stopped panting. His right hand was covered with scars and his tendons were injured. He could not continue and had to use medical ninjutsu to save himself.

After saying that, he threw himself into training again. After failing again and again, Duke turned to Jiraiya, who was still reminiscing about the past, and asked, "Sexy Sage, is there any trick for this stage?"

"How dare you say that! This is an advanced ninjutsu that Minato spent three years to develop. Even it took me a long time to learn this move. How dare you, little brat?" Jiraiya criticized, perhaps trying to inspire Duke's fighting spirit.

"So what?" Kushina was not convinced. If the Third Generation did not agree, she would set fire to the Hokage's office.

"I have to say, you are indeed a genius!" Jiraiya exclaimed from the bottom of his heart. It took Minato three years to develop the ninjutsu, but he learned it in one day. Although there were predecessors summarizing experience and taking fewer detours, he was able to master it in such a short time. This talent convinced him. Minato stepped forward and nodded in agreement. As the creator of the Rasengan, he knew the difficulty of this technique.

"You can actually use ice escape?" Jiraiya asked in surprise, but after thinking about the dark side of the village, he felt relieved.

"Duke not only has the Uzumaki bloodline, but also has the Ice Release bloodline of the Mizunotsuki clan, which has already awakened." Minato whispered. With Kushina already in the village, the need for Uzumaki bloodline is not great, and one Jinchūriki is enough. In comparison, the unprecedented Ice Release bloodline limit is more important.

"This is really..." Jiraiya looked at Duke in front of him, feeling happy from the bottom of his heart, not knowing how to praise him.

Without saying a word, Minato created a shadow clone and asked Duke to attack his clone, intending to practice the power of the new technique himself.

"Is it okay?" Duke hesitated.

"Is there such a thing?" Kushina asked in surprise.

"Oh, your medical ninjutsu is quite powerful!" Jiraiya is a connoisseur. He can see at a glance that Duke's medical ninjutsu is quite accomplished, and it is obvious that he has been taught by a famous teacher. This reminds him of Tsunade who left the village. He is sad and feels that Tsunade has made great contributions to Konoha. Even if she leaves, her achievements cannot be erased.

The sky-blue transparent Rasengan enlarged to the size of a football, and turned into a snow-white liquid ice ball, emitting a suffocating chill. The icy flowers that spread outward frosted Duke's palms. The rapid drop in temperature made Jiraiya and the other two shudder and took a few steps back.

"Ahahaha, you are worthy of being our Uzumaki...my good brother." Kushina said proudly.

“…”

"Don't worry, the shadow clone can convey the destructive power of this technique more intuitively. To be honest, I can't wait to feel it!" Minato encouraged. Jiraiya and Kushina knew that he was anxious, so they didn't try to dissuade him. They turned around and left a space for the two of them.

"I succeeded in one try!" Duke himself was incredulous. It stands to reason that the first few stages of the Rasengan were so difficult, so there was no reason why the more difficult bottom stages would be so easy to pass. What about the agreement that it would get harder the further you go? Duke, who couldn't figure out why, attributed everything to his own cheat code, because his ice escape was different from that of Mizunotsuki in this world. He could control ice at will, far surpassing the Snow Clan of the Hidden Mist.

“I succeeded————”

"There is no secret to the practice of ninjutsu. If you have to say the secret, it is probably hard work. Only perseverance can lead to success." Jiraiya turned on his teacher mode and taught Duke who wanted to take a shortcut. However, he soon showed his lust and drooled: "If you can become a beautiful young lady with curves, I, the immortal, will break the routine and teach you step by step, which will speed up the process!"

"It doesn't matter if there is no nature change. Wind Style Rasengan and Water Style Rasengan cannot be studied for the time being, but..." Seeing that the three people looked unhappy and had the urge to team up to beat up the children, Duke hurriedly said, "I have the bloodline limit of ice style, so I don't need a nature change."

"How is it, Mr. Minato?" Duke wiped off the ice chips on his body. Because they were so close, his body temperature was even close to zero degrees. The low temperature that was enough to kill a normal person was no discomfort to him.

"The destructive power is incomparable to that of the Rasengan, it's terrifyingly strong! Once you're touched by this technique, you can't resist at all and can only wait for death." Minato closed his eyes, thought for a moment, and explained in detail: "The moment it hits, the clone's body functions completely stop, it can't think, even the chakra stops functioning, and then it is torn into pieces by the twisted ice. The clone didn't feel any pain. I think people who are hit by this technique can't feel the pain of death, because when they are frozen, they have lost consciousness, and the cells in their bodies... It's like time has been suspended. Both the difficulty and power of the technique have reached S-level, which is terrifying."

"So cool, I want to learn it too!" Kushina's eyes were twinkling with stars. She couldn't let go of the gorgeous ice escape. Women are like dragons. They have no resistance to shiny things.

"It's useless. That's the bloodline limit. You can't learn it." Minato felt a little regretful. Even the Sharingan couldn't copy the bloodline limit, and he couldn't learn this unique ninjutsu.

(End of this chapter)