Infinite Upgrade Technique of the Heavens

With the confirmation of the marriage between the Hyuga clan and the Uzumaki clan, the Uzumaki clan sent most of the clan members who could perform physical healing to the Konoha Hospital. Chen An arranged for them to learn medical ninjutsu.

Not to mention the physical healing of the Uzumaki clan, it is worthy of the top-level bloodline ability of the immortal body.

In terms of medical ninjutsu, these people are even more talented than some members of the Hyuga clan.

Fortunately, Chen An does not need to lead the team to teach these students in person. As long as he teaches these people one medical ninjutsu class every week, the rest of the time, other members of the Hyuga clan will take them to treat injuries of ordinary Konoha residents and residents of the Land of Fire from other villages, and practice medical ninjutsu.

In order to enable the Uzumaki clan members to join the Konoha medical class as soon as possible, Chen An also proposed to teach these Uzumaki clan members the Shadow Clone Technique. Let them use the Shadow Clone to accumulate experience in medical ninjutsu.

Although these Uzumaki clan members are tired every day, their ability in medical ninjutsu is indeed growing rapidly.

In just a hundred days, an outstanding Uzumaki clan member became a doctor in Konoha Hospital and began to independently receive patients and treat the wounded.

For this, Uzumaki Mito specially invited Chen An and expressed his gratitude to Chen An.

Chen An did not care too much about Uzumaki Mito's gratitude.

"Good day, how did you appear in Konoha Hospital? I waited for you at the gate today, and I didn't see you for a long time."

Chen An, who came to Konoha Hospital with Flying Thunder God, was blocked in the office by Tsunade Senju. When she found that Chen An did not enter from the gate, Tsunade Senju asked Chen An in confusion.

"Oh, you said this, because I learned the Flying Thunder God Technique."

Facing Tsunade Senju's question, Chen An did not hide it and said to Tsunade Senju with a smile.

"What? You learned the Flying Thunder God Technique of your second grandfather?"

Tsunade Senju asked in surprise after hearing Chen An's words.

You should know that in the scroll of his second grandfather Tobirama Senju, the difficulty of Flying Thunder God can be the most difficult one.

Without relevant talents, it is very difficult to learn the Flying Thunder God Technique.

"Do you need me to go back that day, Ri An? I will ask Grandma Mito for the swordsmanship secrets of the second grandfather. After all, the Flying Thunder God Technique can only cause the greatest lethality when it is close to the enemy."

"Based on your performance during this period, Grandma Mito will be very happy to give you the secrets."

Tsunade Senju did not feel jealous because Chen An learned the Flying Thunder God Technique. Instead, she smiled and said to Chen An.

After all, Chen An has been working hard to help the Uzumaki clan integrate into the Konoha Hospital during this period. Although Tsunade Senju does not often work in the Konoha Hospital, she can still know something from her distant relatives.

"No need, Tsunade I already have a new idea, so I don't need the swordsmanship of the second generation."

Tsunade Senju's words caught Chen An's attention. Maybe he could imitate the fighting style of the fourth generation Hokage Minato Namikaze and try to create the A-level Rasengan.

"No need for swordsmanship, what are your plans?"

Hearing Chen An's words, Senju Tsunade asked in confusion.

"I plan to create a no-mark ninjutsu."

Chen An said to Senju Tsunade with a smile.

"No-mark ninjutsu? You are really fanciful. My second grandfather had already thought about creating a no-mark ninjutsu, but he didn't succeed in the end."

Hearing Chen An's words, Senju Tsunade said to Chen An in disbelief.

"Since you don't believe it, I will come to see you after I develop it in two days. I will definitely surprise you then."

Looking at Senju Tsunade's incredible tone, Chen An said to Senju Tsunade unhappily.

"Okay, I want to see what kind of no-mark ninjutsu you can develop. "

Tsunade Senju raised her chin proudly. She said to Chen An in a proud tone.

After saying that, Tsunade Senju turned and left Konoha Hospital.

After returning home from Konoha Hospital, Chen An prepared the props used by Jiraiya to teach Uzumaki Naruto Rasengan in the original work, and began his own Rasengan ninjutsu training.

In just one day, Chen An completed the Rasengan that Uzumaki Naruto spent a long time to complete in the original work.

Looking at the blue chakra ball in his palm, Chen An showed a satisfied smile on his face.

"Tsunade Senju, this time I'll slap you in the face."

Chen An dispersed the Rasengan in his hand, smiled and said to himself.

"Tsunade, Tsunade, come out! My unprinted ninjutsu is complete, come and see!"

Chen An ran to the clan's land of the Senju clan early in the morning. He shouted loudly to Tsunade Senju who was still sleeping.

"What? Isn't it just one day? Your unprinted ninjutsu is now complete.

Tsunade Senju rubbed her sleepy face. She walked out of the room while yawning.

"Tsunade Senju, watch this."

Chen An stretched out his right hand and placed it in front of Tsunade Senju. Then a blue Rasengan quickly appeared in Chen An's palm.

"Rasengan!"

Chang An shouted and threw the Rasengan in his hand directly at a big tree in Tsunade Senju's yard.

The big tree was instantly broken by the Rasengan, and the trunk slowly fell down.

Tsunade Senju, who was still yawning, suddenly widened her eyes and looked at Chen An's Rasengan knocking down the tree in astonishment.

"This... this is... your unprinted ninjutsu?"

Tsunade Senju stuttered out a sentence.

"How is it? I developed the A-level unmarked ninjutsu Rasengan."

Chen An stood in front of Tsunade Senju and said with a smile.

"This is impossible. You really developed an unmarked ninjutsu. Is this true?"

Tsunade Senju grabbed Chen An's collar and shook Chen An's body constantly, shouting in disbelief.

"Gently, gently, gently, of course it's true."

Being constantly shaken by Tsunade Senju, Chen An showed a satisfied smile on his face.

But being constantly shaken by Tsunade Senju, as long as Chen An felt dizzy,

"Tell me, how did you create the Rasengan in such a short time."

"Has it been created a long time ago? You used this ninjutsu specifically to bet with me."

Tsunade Senju grabbed Chen An's collar and said angrily to Chen An.

"Tsk, this is just a simple ninjutsu, why do I need to use it to deceive you."

Chen An said "tsk" and said to Tsunade Senju with disdain.

"Okay, I still can't believe it. But can you give me this ninjutsu?"

Tsunade Senju gently let go of the dust and said to Chen An in a flattering way.

"If you want to learn, I'll teach you."

Looking at Tsunade Senju's admiring eyes, Chen An patted his collar and said proudly to Tsunade Senju.

"Then let's go, let's go!"

Tsunade Senju pulled Chen An and prepared to walk to the training ground.

"Aren't you going to wash up and change clothes?"

Chen An, standing in place, looked at Tsunade Senju and said with a smile.

"Ah?"

"Ah!"

Tsunade Senju looked down at her pajamas, shouted, and turned to run to her room.

Leaving Chen An laughing in place.