Naruto Bond

Lu Fei and Naruto continued to explore deeper into the cave with the crystal ball. The road in the cave became more rugged and the light became dimmer. They could only rely on the light emitted by the Thunder Flame Sword to illuminate the way ahead.

As they walked, a narrow passage appeared in front of them. The walls on both sides of the passage were engraved with strange symbols and patterns. Lu Fei and Naruto walked into the passage carefully, and suddenly, a sharp whistling sound came from the depths of the passage.

"Be careful!" Lu Fei shouted and held the Thunder Flame Sword across his body.

As soon as he finished speaking, countless black wind blades flew out from the depths of the passage and swept towards them. Naruto immediately performed the Shadow Clone Technique, and many clones scattered in all directions, avoiding the attack of the wind blades.

Lu Fei wielded the Thunder Flame Sword, and the flames and lightning on the sword formed a protective barrier, blocking the wind blades one by one. However, there were too many wind blades, and Lu Fei gradually felt a little tired.

"This is not a solution. We have to find the source of the wind blade!" Lu Fei shouted.

Naruto nodded, his eyes turned into golden vertical pupils, and he activated the Sage Mode. In Sage Mode, Naruto's perception ability was greatly improved, and he quickly discovered that the source of the wind blade was a dark corner at the end of the passage.

"There!" Naruto shouted, pointing to the end of the passage.

Lu Fei and Naruto looked at each other, and then rushed to the end of the passage together. Wind blades continued to fly out from the dark corners, but they were already prepared and flexibly dodged the wind blades' attacks.

Finally, they rushed to the end of the passage. In the dark corner, there was a huge black whirlwind, and a figure could be vaguely seen in the whirlwind.

"Are you the one causing trouble?" Naruto roared, condensed a huge Rasengan in his hand, and threw it towards the black whirlwind.

The Rasengan collided with the black whirlwind, making a loud noise. However, the black whirlwind was not destroyed, but became even more violent.

"This guy is not easy to deal with!" Lu Fei frowned.

At this moment, the figure in the black whirlwind suddenly burst into laughter. "Hahahaha, you two ignorant fellows, how dare you break into my territory!"

As the laughter sounded, the black whirlwind gradually dissipated, revealing a mysterious man wrapped in a black robe. The mysterious man wore a black mask on his face, revealing only a pair of eyes that were flashing red light.

"Who are you? Why are you attacking us?" Lu Fei asked vigilantly.

The mysterious man sneered, "It doesn't matter who I am. What matters is that you all have to die here today!"

After saying that, the mysterious man waved his hands, and a powerful dark force surged out from his hands and attacked Lu Fei and Naruto.

Lu Fei and Naruto immediately used their strongest moves to resist. Lu Fei used the power of the Thunder Flame Sword to the extreme, and the flames and lightning on the sword intertwined into a huge beam of light, colliding with the dark power. Naruto used the immortal method? Super Large Jade Rasengan Multi-Rengan, and countless huge Rasengan flew towards the mysterious man.

The forces of both sides collided violently in the air, making loud noises. The entire cave was shaking, as if it was about to collapse.

During the fierce battle, Lu Fei and Naruto gradually discovered that the mysterious man's dark power seemed endless. Although their attacks could cause certain damage to the mysterious man, they could not completely defeat him.

"We can't go on like this, we must find a way to find his weakness!" Lu Fei shouted.

Naruto nodded, his eyes fixed on the mysterious man, trying to find his flaws. At this moment, Naruto suddenly discovered that there seemed to be a faint light flashing under the mysterious man's black robe.

"Lu Fei, attack his black robe!" Naruto shouted.

Lu Fei immediately understood what Naruto meant, and he swung the Thunder Flame Sword and slashed at the mysterious man's black robe. The mysterious man seemed to have sensed their intentions and tried to dodge, but it was too late.

The Thunder Flame Sword accurately slashed the mysterious man's black robe, cutting a hole in it. A beam of light shot out from the black robe, and the mysterious man let out a scream, and the dark power instantly weakened a lot.

"Now!" Naruto saw this and immediately launched his strongest attack. He injected all the chakra in his body into the Rasengan and threw it at the mysterious man.

The Rasengan hit the mysterious man fiercely with the power to destroy the heavens and the earth. Under this powerful attack, the mysterious man was finally unable to resist and his body was blown to pieces.

With the disappearance of the mysterious man, the dark power in the cave gradually dissipated.