Naruto: Most Powerful Bloodline

When Shigure woke up, he found that everything around him had changed. The people around him wore strange clothes, and he occasionally saw ninjas walking on the streets. The environment was both familiar and unfamiliar to him.

"Where am I?" Shigure touched his head, unable to recall what had happened before. However, as he looked around, he realized that this environment didn't seem fake, and it was clear that he wasn't part of some prank.

"Did I cross over? Or am I still dreaming?" Shigure pinched himself.

"It hurts! I'm not dreaming! I must have crossed over!" Shigure glanced around and saw three familiar stone faces.

"This is…? Could this be Konoha Village!? I've crossed into Konoha Village!?" Shigure muttered in disbelief.

"Ding!" A strange, mechanical voice suddenly sounded in Shigure's ears.

"Binding…

Binding...

Binding successful! Congratulations to the host! The strongest bloodline has been activated! Host, would you like to use your first reward of the bloodline?"

Without hesitation, Shigure answered, "Use it!"

"Ding! Hello, host! The system has delivered your first reward: the Otsutsuki bloodline! Will you merge with this bloodline?"

Shigure immediately responded, "Merge it!"

As soon as he spoke, Shigure felt his body start to change. A sudden wave of intense comfort flooded his mind.

"Plenty of dopamine is being released to help you withstand the upcoming pain!" The system's voice echoed, and a bright light shot toward Shigure from all directions.

Shigure's momentary euphoria quickly turned into agony. His body felt as though it was being torn apart from within, and the pain of bursting blood vessels overwhelmed him.

The pain was unbearable, and Shigure fell silent, almost numb to it.

"Host! Hold on! The fusion is nearly complete!"

"3!" Shigure's vision began to blur from the pain.

"2!" His surroundings were barely audible.

"1!" The final countdown from the system echoed in his ears as Shigure lost consciousness.

"The fusion is complete! Congratulations to the host! You have successfully merged with the purest Otsutsuki bloodline!"

However, Shigure was completely unconscious, and he didn't hear the last part of the system's message.

In his dazed state, Shigure vaguely heard someone calling his name.

"Uchiha Shigure! Uchiha Shigure!" He slowly opened his eyes and saw a beautiful young girl with jet-black hair and onyx eyes. It was clear that she was the one calling his name.

Shigure found himself lying in a white hospital bed, surrounded by the smell of disinfectants. The sterile environment made him feel a little uncomfortable.

"My name is Uchiha Shigure?" Shigure asked, slightly confused.

The woman looked distressed and tears welled up in her eyes as she spoke.

"Ouuu! Brother Shigure, I'm so sorry! It's my fault! You have to return that necklace! Otherwise, you wouldn't have lost your memory like this... Do you remember who I am?"

Shigure stared at the girl and slowly shook his head. "Sorry, I don't remember anything. You called me Uchiha Shigure? Am I from the Uchiha clan?"

The girl began crying again. "It's over! Brother Shigure, you really forgot about me! I'm Xiaoxing!"

Shigure scratched his head awkwardly. "Xiaoxing, I think I have amnesia. Can you tell me what happened before?"

Xiaoxing pulled out a mirror and held it up for Shigure to see.

Shigure gazed into the mirror and saw himself: his jet-black hair covered his forehead, his high nose bridge, yellow skin, and sharp obsidian eyes. His gaze was both piercing like an eagle's and gentle like a lamb's.

He appeared to be a handsome young man, though a scar ran from his left eyebrow down the bridge of his nose, making his otherwise perfect face look slightly fierce.

"Look at you," Xiaoxing said, her voice filled with sorrow. "Not only did you lose your memory, but you also lost your appearance. It was those bad guys from your Uchiha clan who stole my necklace. You tried to help me get it back, but in the end, they hurt you. They even slashed your face with a knife. When I found you, you were already unconscious... I didn't expect... now you've lost your memory."

Xiaoxing nearly broke down again.

"Sister Xiaoxing, don't worry. Even though I have amnesia, at least I'm okay now!" Shigure tried to comfort her, though his mind was racing. "Crossing over? A system? A bloodline? Xiaoxing? It's all so confusing, but if I'm right, I must be in the world of Naruto!"

"It seems my soul has taken over the body of a teenager from the Uchiha clan," Shigure thought as he continued to speak with Xiaoxing.

From their conversation, Shigure learned that although he was from the Uchiha clan, his parents had tragically died on the battlefield when he was very young. He had been left to grow up alone in Konoha Village. No one had taken care of him, and Shigure grew up with a cynical attitude. Xiaoxing, too, had experienced a similar hardship, so Shigure treated her like a younger sister, always looking out for her.

Recently, however, Xiaoxing had been insulted by the children of noble Uchiha families. Shigure, in trying to defend her, had inadvertently caused trouble and gotten injured. It was during this dispute that the opportunity for his soul to cross over presented itself.

After piecing everything together, Shigure realized what he needed to do next.

"Huh! The Uchiha clan!" Shigure thought, secretly sneering at Xiaoxing's tearful face.

"Alright, Xiaoxing, you should go rest. Didn't you say I have to take the Ninja Academy graduation exam tomorrow? I need to prepare," Shigure said, gently sending her away.

As soon as Xiaoxing left, Shigure closed his eyes and focused on the changes inside his body. The system had activated and merged with the Otsutsuki bloodline, but he still didn't know what abilities he had gained.

"I can feel that earth-shattering changes have taken place in my body," Shigure thought. His eyes began to itch, and a warm sensation spread throughout his body.

He could sense a powerful energy coursing through him, and his mind felt sharper as if it was unlocking something within him.

"If that's the case… Let's unlock it!" Shigure thought, willing the energy within his body to flow freely. A pure power instantly filled every part of him.

"Is this chakra?" Shigure thought, realizing that the energy now circulating in his body was the chakra of the Naruto world.