Naruto: We are invincible

"It's over." Naruto withdrew his hands and looked at the two children emitting pure blue chakra, and said with relief. "From now on, they will create their own destiny."

Naruto gently placed the two children into the cribs beside the bed, then sat down beside Hinata's bed with a serious expression.

"There's something I've always wanted to ask you."

"What's the matter?" Hinata asked curiously.

"I finally figured out...the secret of immortality." Naruto said with a smile, a hint of excitement and pride in his tone.

During this period, he consulted countless materials, conducted countless experiments, and finally succeeded.

"Really?" Hinata was skeptical.

"Watch." Naruto said, and without hesitation, he swung the sword and cut off his left wrist.

Hinata was stunned for a moment, and was about to scold Naruto for his recklessness, but was surprised to find that the severed hand that fell to the ground disappeared out of thin air.

She quickly looked up at Naruto, and saw that new flesh and blood were rapidly regenerating on his broken wrist, including bones, meridians, skin... In a moment, an intact arm appeared before her eyes.

"This...how did you do this?" Hinata was so surprised that she stuttered.

"The principle is actually very simple. If we break the Hayflick Limit and combine it with rapid cell division and a strengthened immune system, we can create a perfect body," Naruto explained with a smile.

Hinata nodded, not quite understanding. "So... I want to ask you, are you willing to... stay with me forever?" He looked at Hinata affectionately and asked softly.

"I do, you guy..." Hinata said softly, her eyes slightly red.

"Great!" Naruto cheered excitedly, but soon realized something and lowered his voice for fear of waking up the sleeping children.

"Then...what about Madara and Ryu?" Hinata asked, looking at the two sleeping children.

"When they grow up, I will give them the right to choose." Naruto replied. "Now, take off your clothes first."

"Ah? Take...take off clothes?" Hinata was stunned for a moment and asked with a blushing face.

"I need to carve a seal on you." Naruto said as he prepared the sealing ritual, completely unaware of Hinata's abnormality.

Hinata sighed helplessly and took off her clothes with a blushing face.

"Naruto-kun..." Hinata called softly, interrupting Naruto's actions.

"What's wrong?" Naruto asked confused.

"What kind of seal is this?" Hinata asked curiously as she looked at the complicated techniques on her body.

It was a mesh-shaped seal that covered the entire body, and at the heart position in the chest, there was a special lock-shaped seal.

"It may be a little painful, just bear with it." Naruto said, closing his eyes. When he opened them again, his Rinnegan had turned silver-white.

Hinata was surrounded by silver light, and a tingling sensation spread throughout her body. She opened her Byakugan and carefully observed the changes in her body.

Her eyes opened wider and wider, and she saw that every cell in her body was undergoing earth-shaking changes.

Naruto seemed to be controlling the division and recombination of cells, and even...

"Could it be... he changed my genes?!" Hinata thought to herself. She realized that Naruto was transforming her body, but she didn't know what exactly Naruto was doing, nor did she know what consequences this would bring.

The light gradually dissipated, and Naruto placed his hand on the lock-shaped seal on Hinata's chest.

"Seal," he whispered. The seal emitted a dazzling white light, then disappeared, as if it had never appeared.

"Huh?" Naruto suddenly came to his senses and realized what Hinata seemed to have asked just now.

"What... did you say just now?" he asked, scratching his head embarrassedly.

"Nothing, I just want to know what you did to me?" Hinata asked while putting on her clothes.

"I have modified your body. As long as one cell exists, your body can be reborn infinitely. I have also bound your soul to this body. Unless I take the initiative to lift the seal, even if your body is completely destroyed, your soul can find the remaining cells and be reborn again. Not only that..." Naruto paused and continued, "This seal can also distinguish the real you. If someone uses your cells to clone a new body, the seal will automatically destroy it."

Hinata was stunned when she heard this, she didn't expect Naruto to be so thoughtful.

"You...are such a troublesome guy..."

"How's it, isn't it amazing?" Naruto said with some pride, "This is the ultimate sealing technique I developed - the Seal of Eternal Life."

"At least that's what it seems like now," he added.

"What do you mean?" Hinata keenly captured the key information in Naruto's words.

"What I mean is... Hinata, the two of us may no longer be considered ordinary people." Naruto said in a complicated tone, and as he spoke, he scratched his short hair out of habit.

Hinata couldn't help but frowned when she heard this, but she didn't say anything. She just waited quietly for Naruto's explanation.

"Think about it, our current strength has already surpassed all previous Hokage, Hashirama, Tobirama, Minato-sensei, Madara, the Sage of Six Paths... even if all the strong men are put together, they may not be our opponents."

"So...you're saying..."

"My guess is that no matter what kind of damage our bodies have experienced, no matter whether this seal is effective or not, you and I have gained eternal life. We are immortal." Naruto sighed and said slowly.

"How could this be..." Hinata murmured to herself, her heart filled with disbelief and a hint of fear.

"Maybe... when we are tired of this world and want to end this endless life, we can choose to start a new journey through reincarnation like Indra and Ashura." Naruto held Hinata's hand and said gently.

"But... if that happens, we won't remember anything. Our memories, our feelings... everything will disappear..." Hinata's eyes became red again.

"Maybe..." Naruto didn't know how to answer, but he knew that no matter what happened, he would find Hinata and stay by her side forever.

……