Naruto Bond

As the sharp screams faded away, the forest fell into a dead silence, with only the sound of Lu Fei and Naruto stepping on the dead branches and leaves as they moved forward. The fog became thicker and the surrounding trees looked like monsters with bared fangs and claws. Those strange runes were looming in the fog, as if whispering an ancient curse.

Suddenly, the ground began to shake violently, and huge cracks spread out from under their feet. Countless black vines stretched out from the cracks, and the vines were covered with sharp thorns, like steel needles, and they entangled towards Lu Fei and Naruto at an extremely fast speed.

Lu Fei quickly swung the Thunder Flame Sword, and the flames and lightning on the sword burst out instantly, cutting off the approaching vines. The cut vines fell to the ground, still twisting and leaking black juice. As soon as the juice touched the ground, it made a "sizzling" sound and corroded small pits.

Naruto used his wind chakra to form a powerful whirlwind around him. The whirlwind was like a sharp blade, crushing the vines that tried to get close into powder. But the vines continued to pour out of the cracks, seemingly endlessly.

"This is not a solution. We have to find the source of these vines." Lu Fei shouted loudly. As he spoke, he rushed towards the direction where the vines were most densely populated. The Thunder Flame Sword drew a dazzling arc of light in front of him, clearing a path for himself.

Naruto followed closely behind, and activated his Shadow Clone Technique, with countless shadow clones rushing in different directions to distract the vines. The original Naruto and Lu Fei ran deeper into the forest.

While running, they found a huge tree hole. The vines around the tree hole were the thickest. They were wrapped around the tree hole like a giant python. All the vines seemed to extend from this tree hole. There was a strong dark aura in the tree hole, making people feel as if they were at the entrance to hell.

"The source should be in here." Lu Fei said, he stopped and looked at the tree hole vigilantly.

Naruto nodded, "Let's go in together. Be careful."

They walked into the tree hole carefully. The interior of the tree hole was very large, and the walls were flashing with strange purple light. Deep in the tree hole, there was a huge black crystal ball, which was covered with complex lines. These lines were constantly releasing black energy, and the vines were growing wildly under the drive of this energy.

"This is the thing causing trouble." Naruto frowned.

At this moment, the crystal ball suddenly released a powerful dark shock wave, sweeping towards them. Lu Fei and Naruto hurriedly dodged, and the shock wave hit the wall of the tree hole, and deep cracks appeared on the wall.

"We have to find a way to destroy this crystal ball." Lu Fei said. He rushed towards the crystal ball, and the power of the Thunder Flame Sword increased to the extreme, and slashed towards the crystal ball.

When the Thunder Flame Sword came into contact with the dark energy around the crystal ball, the sword body trembled violently, as if it was hit by a huge resistance. Lu Fei gritted his teeth and continued to increase his strength. The power of fire and lightning collided with the dark energy, splashing sparks.

Naruto also used the immortal technique, the Super Large Rasengan, and rushed towards the crystal ball. He smashed the Rasengan hard at the crystal ball, and the power of the Rasengan and the power of the Thunder Flame Sword cooperated with each other, causing a huge impact on the crystal ball.

After the crystal ball was attacked, the light became more dazzling, and dark energy surged out like a tide, trying to swallow them up. Lu Fei and Naruto were enveloped by the dark energy, and felt their bodies become unusually heavy, and their movements became slow.

"We can't be suppressed by it." Lu Fei shouted. He concentrated his mind and mobilized all the source power in his body, trying to break through the shackles of dark energy.

Naruto also tried to resist, he merged the Nine-Tails' chakra with his own chakra to enhance his own strength. Under their tenacious resistance, the suppression of the dark energy gradually weakened.

They launched another attack, and new lines appeared on Lu Fei's Thunder Flame Sword. These lines were the manifestation of the extreme compression of the source power. He jumped high and used his strongest sword towards the crystal ball - "Source Flame Thunder Explosion Shattering Sky Slash". This sword carried the momentum of destroying the world and cut a gap in the surrounding dark energy.

Naruto seized this opportunity and used the "Wind Style: Nine-tailed Rasenshuriken". He threw the giant shuriken formed by the fusion of wind attribute chakra and Nine-tailed chakra towards the gap in the crystal ball. The shuriken kept spinning during the flight, and the powerful force caused chaos in the surrounding dark energy.

Under their joint attack, the crystal ball finally couldn't bear it anymore. After a loud noise, countless cracks appeared. As the cracks spread, the crystal ball finally broke into countless pieces, and the black energy dissipated.

Without the support of energy, the vines outside quickly withered and fell to the ground. The tree hole also stopped vibrating, and everything around it returned to calm.

Lu Fei and Naruto breathed a sigh of relief that they had successfully resolved the crisis, but they knew that the secrets of this mysterious forest had not yet been fully solved, and there were still more mysteries waiting for them to explore.

They continued to move forward in the forest. The fog around them gradually dissipated, and the sunlight shone through the gaps between the branches and leaves, forming patches of light on the ground. The creatures in the forest seemed to have sensed that the danger had been lifted, and began to move. Occasionally, birds could be heard singing.

However, not long after they walked, they discovered a new strange phenomenon. The trees ahead were twisted, as if they were twisted by a huge force. The runes on the tree trunks became more complex and mysterious, and they seemed to be emitting a faint light, guiding them in a certain direction.

"It seems there are other secrets here." Lu Fei said as he looked at the glowing runes.

Naruto nodded, "Let's follow these runes and see what we find."

They walked in the direction indicated by the rune, and soon came to a small lake with clear water. The lake water was a strange blue color. There was a small island in the center of the lake, and on the island there was an ancient stone tablet. The stone tablet was engraved with words and patterns, which exuded a mysterious atmosphere and attracted their attention.

Lu Fei and Naruto performed the light body technique and crossed the lake to the island. They approached the stone tablet and carefully observed the contents on it. After some interpretation, they found that the stone tablet recorded the origin of the forest and an ancient seal. It turned out that the forest was once a place where evil forces were sealed, but as time went by, the seal loosened, leading to the various abnormal phenomena before.

"We have to reinforce the seal again." Lu Fei said.

"But how do we do it? Is there any method mentioned on the stone tablet?" Naruto asked.

They continued to study the stone tablet and found that to strengthen the seal they needed to find five special gems. These gems were hidden in different corners of the forest and protected by various mechanisms and guardian beasts.

"It looks like we have a new mission." Naruto smiled helplessly.

"Let's go, let's go find these gems first." Lu Fei said.

So they left the island and began to look for the five special gems in the forest, and a new adventure began.