Naruto Bond

After defeating the rock giant, Lu Fei and Naruto continued to explore deeper into the cave. The passage of the cave became narrower and narrower, and the surrounding walls became more rugged and uneven, emitting a mysterious light.

They took careful steps, feeling the slight vibrations under their feet with every step. Lu Fei held the Thunder Flame Sword tightly, the flames and lightning on the sword blade were particularly dazzling in this dim environment. Naruto mobilized the chakra in his body, and the power of the golden nine-tails formed a protective barrier around his body.

"I wonder what dangers lie ahead." Naruto whispered.

Lu Fei nodded slightly, his eyes full of vigilance, "We must always be vigilant, this cave is full of unknowns."

Suddenly, a sharp whistling sound came from the front. The two immediately stopped and looked nervously in the direction of the sound. They saw a group of black bat-like creatures pouring out of the darkness, their eyes flashing red and their wings with sharp spikes.

"What are these?" Naruto frowned.

Lu Fei held the Thunder Flame Sword tightly, "It looks like a magical creature, be careful of their attack."

The bat creatures quickly flew towards Lu Fei and Naruto at an extremely fast speed. They flapped their wings and shot their spikes at the two like sharp arrows.

Lu Fei immediately unleashed the power of the Thunder Flame Sword, and the flames and lightning on the sword intertwined into a powerful barrier, blocking the attack of the spikes. The spikes collided with the barrier, making bursts of piercing sounds.

Naruto was not to be outdone, he used the power of the golden nine-tailed beast, and a huge beast ball condensed in his hand. He threw the beast ball towards the group of bat creatures, and the beast ball exploded, and the powerful impact force pushed the bat creatures back.

However, the bat creatures were not easily defeated. They attacked again, divided into several teams, and attacked Lu Fei and Naruto from different directions.

Lu Fei and Naruto worked closely together, constantly dodging the attacks of the bat creatures while looking for opportunities to counterattack. Lu Fei used the flexibility of the Thunder Flame Sword to quickly slash at the approaching bat creatures. The flames and lightning on the sword instantly scorched or paralyzed the bat creatures.

Naruto used various ninjutsu, alternating between wind jutsu, fire jutsu and other ninjutsu, and beat the bat creatures into pieces.

During the battle, Lu Fei discovered that the bat creatures seemed to be controlled by a mysterious force. He decided to find out the source of this force and completely eliminate these bat creatures.

"Naruto, these bat creatures may be controlled by some force. We have to find the source." Lu Fei shouted.

Naruto nodded, "Okay, let's look for it together."

While fighting the bat creatures, they observed the surrounding environment. After some effort, they finally found a crystal emitting a strange light at the top of the cave.

"It's that crystal that controls these bat creatures." Lu Fei said.

Naruto looked at the crystal, "So what do we do?"

Lu Fei thought for a moment, "We must destroy that crystal, but be careful, there may be a strong counterattack."

They prepared themselves and attacked the crystal together. Lu Fei used the Thunder Flame Sword's strongest attack, and a huge sword energy flew towards the crystal. Naruto also used the power of the Golden Nine-Tails at the same time, and threw a huge Tailed Beast Ball towards the crystal.

The sword energy and the Tailed Beast Ball hit the crystal at the same time, and the crystal emitted a strong light and began to fight back. A powerful force surged out of the crystal and attacked Lu Fei and Naruto.

They dodged in a hurry, but the force was so strong that they found it hard to resist. At the critical moment, Lu Fei thought of a way. He inserted the Thunder Flame Sword into the ground and used the power of the sword to form a protective circle.

"Naruto, quickly hide in the protective circle." Lu Fei shouted.

Naruto quickly hid in the protective circle. The protective circle resisted the counterattack of the crystal, making them temporarily safe.

When the counterattack weakened, they attacked again. This time, they focused more on their strength, and the sword energy and tailed beast jade accurately hit the core of the crystal.

The crystal finally shattered, and as it shattered, the bat creatures lost control and fell or flew away.

Peace returned to the cave. Lu Fei and Naruto breathed a sigh of relief, knowing that they had successfully defeated the danger once again.