Reborn Naruto: Starting with its own system

Itachi carried Shisui to a safe place, and then put him down carefully. Shisui looked at Itachi who saved him, and said weakly: "Don't you still have a mission?" Looking at the seriously injured Shisui, Itachi's eyes were full of heartache, and his eyes were mixed with sadness, anger and helplessness. He choked and said: "I always have a bad feeling, so..."

Shisui sighed, then continued, "I originally wanted to use Kotoamatsukami to stop the coup, but Danzo took my right eye. He didn't believe me, and he insisted on defending the village in his own way. I'm afraid he won't let go of my left eye either. Before that, I entrust this eye to you, my dear friend." As he spoke, Shisui dug out his left eye with trembling hands.

Uchiha Itachi did not stop him, but his face was full of shock, and he asked in a trembling voice: "I accept it, so what are you going to do next?"

"I have left a suicide note," Shisui replied calmly.

At this moment, Itachi panicked instantly. He stretched out his hand and shouted, "Wait, Shisui."

Shisui said resolutely: "Don't stop me, Itachi. My will will be inherited by you." After that, he showed Itachi a bright smile, which was full of relief and expectations for the future. Then, without any hesitation, Shisui jumped resolutely and jumped into the bottomless waterfall behind him.

"Plop!" The sound of falling water echoed in the valley. Itachi rushed to the edge of the waterfall, looking at the rushing water, his heart seemed to fall with Shisui. Unconsciously, a stream of blood flowed from the corner of Itachi's eyes, and the blood slid down his cheek and dripped onto the ground under his feet.

When he opened his eyes again, they had transformed into Mangekyō Sharingan. The patterns in his eyes were complex and mysterious, as if they contained endless pain and power.

Naruto, hiding in the dark, watched all this quietly, and suddenly felt very sorry for Itachi. This man, known as "One Against Seven", had a miserable fate since childhood. He was caught between the village and the family, and endured pressure and pain that ordinary people could hardly imagine.

Naruto seemed to be able to see Itachi's inner struggle and torment. He imagined Itachi's despair and helplessness when he made that difficult decision. In the end, Itachi chose the village and his brother, and slaughtered his entire family and parents despite the grief.

Naruto looked at Itachi's lonely and sad back, and swore in his heart that he must change the fate of the Uchiha clan and Itachi in two years.

Deep in the river, Naruto finally found Shisui who had jumped off the cliff, but Shisui was no longer alive. His slightly stiff body lay quietly among the rocks at the bottom of the river, cold and lifeless, as if silently announcing Shisui's death.

But Naruto didn't feel any despair. In fact, when Shisui was fighting with the Anbu in the forest, Naruto had already hidden in the dark. But Naruto didn't rescue Shisui, firstly to avoid changing the original plot as much as possible, and secondly to let Itachi understand the evil of Konoha Village.

When Naruto was on his way, he had already thought about how to save Shisui. When Naruto first came to this world, he obtained the forbidden technique "Rebirth Retrieval" through the system sign-in. The conditions for using the forbidden technique are extremely harsh. First, you need to have the strength of the Six Paths, and second, you need a huge natural force.

At this moment, Naruto already possessed the strength of the Six Paths. As for the power of nature, it was actually spiritual power. His current state had already reached the Qi Condensation Realm. He secretly estimated in his heart that the spiritual power to resurrect one person should be able to support it.

Naruto took a deep breath, stared at Shisui's body with a determined look, and prepared to perform this forbidden technique. He slowly closed his eyes, and began to make complex and mysterious hand seals with his hands, muttering something, and every syllable seemed to contain an ancient and powerful power.

As the seals continued to change, the space around Naruto began to distort slightly, and an invisible pressure spread. Fine beads of sweat gradually appeared on his forehead, and his face became a little pale, but his hands did not tremble at all, and he still completed every action firmly.

Gradually, Naruto's body radiated brilliant light, and countless runes seemed to flash in the light. His body trembled slightly, as if he was under great pain and pressure. But he gritted his teeth and tried his best to maintain the performance of the technique.

Under the shining light, a light blue halo appeared around Shisui's body, and the halo flowed slowly, as if gathering some mysterious energy.

Suddenly, the light became brighter, illuminating the entire depths of the river as bright as day. Naruto felt the spiritual power in his body surge out like a broken dam, and was madly injected into the technique.

His body was shaking more and more violently, and a low groan came from his throat, but the determination in his eyes never wavered.

Finally, at the moment when the light reached its peak, all the light suddenly shrank and poured into Shisui's body. Shisui's originally lifeless body began to tremble slightly, the wound healed at a speed visible to the naked eye, and his breath gradually recovered.

Naruto felt relieved, his legs went limp, and he almost collapsed to the ground. He gasped for breath, looking at Shisui who was gradually waking up, with a relieved smile on his face.

Shisui slowly opened his eyes, his eyes full of confusion and bewilderment. When he saw Naruto, he asked in surprise: "What's going on? Didn't I already..."

Naruto said weakly, "I used a forbidden technique to save you, but this is between you and me, and you must not let anyone else know."

Shisui looked at Naruto gratefully and nodded heavily.

Naruto stood up and turned his back to Shisui. At this moment, a system voice sounded in his mind: "Ding, congratulations to the host for completing the system task and receiving the reward of the Mangekyō Sharingan. Ding, it is detected that the host's Sharingan has merged with the Byakugan to form the Byakugan. Now the Mangekyō Sharingan is merged into the Mangekyō Byakugan."

Naruto felt a strange sensation in his eyes, first a warm sensation, then a sharp pain. His eyes began to change, and the white part of the original Byakuran gradually showed complex and mysterious patterns, and the pupils gradually became distorted.

The lines were like a burning flame or a winding electric current, constantly interweaving and spreading. The pattern in the pupil became clearer and clearer, presenting a mysterious and powerful aura.

As the changes intensified, Naruto felt the world in front of him begin to blur and his head became dizzy. But he resisted the discomfort and tried to stay awake.

Finally, the changes stopped, and Naruto slowly opened his eyes. At this moment, his eyes exuded a frightening power, which was the fused Mangekyō Byakuran.

Shisui felt the powerful force emanating from Naruto at this moment, and couldn't help but sweat a little: "Um, senior, are you okay?"

Naruto waved his hands to indicate that he was fine. Then he said, "Shisui, what are your plans now?"

Shisui looked at the man wearing an ice sculpture mask in front of him in confusion, with a lonely expression: "I am dead, and I can't go back to the village." After saying this, he lowered his head, and the whole person seemed to have lost his soul, looking extremely depressed.

Looking at Shisui's lost expression, Naruto's eyes suddenly turned into Sharingan (PS: the Byakugan can switch between Sharingan and Byakugan freely).

"Shisui, since you have nowhere to go, why don't you just follow me from now on."

When Shisui heard Naruto's words, he slowly raised his head, but when he saw Naruto's eyes, he showed a frightened expression: "Senior, you, you, you are also from the Uchiha clan?"

Naruto narrowed his eyes slightly and did not directly answer Shisui's question. His voice was deep and magnetic: "I can understand your pain and helplessness. Follow me and I will give you a new direction."

Shisui stared at Naruto with wide eyes, struggling fiercely in his heart.