Naruto Bond

After successfully defeating the black shadow controlled by the crystal ball, Lu Fei and Naruto continued to explore the cave. The depths of the cave were filled with a mysterious and oppressive atmosphere, as if hiding a more powerful danger.

They walked forward cautiously, each step full of caution. The rocks on the ground were rugged and uneven, and the walls were flashing with strange lights, as if telling an ancient story.

Suddenly, a low roar came from a distance, and the ground began to tremble slightly, as if a huge force was awakening.

"Be careful!" Lu Fei shouted.

Naruto immediately prepared for battle, the golden Nine-Tails' chakra surging around his body. "Whatever it is, we can defeat it."

As the roar got closer, a huge figure gradually appeared in their sight. This was a giant made of rock, its body was tens of meters high, and it exuded a powerful earth magic power. The giant's eyes flashed red and were full of hostility.

"What kind of monster is this?" Naruto asked in surprise.

Lu Fei held the Thunder Flame Sword tightly, and the flames on the sword flickered with lightning. "It looks like a powerful magical creature. We must be careful."

The rock giant saw Lu Fei and Naruto and immediately launched an attack. It swung its huge fist and smashed towards them. The fist was so powerful that the air was compressed and made a hissing sound wherever it passed.

Lu Fei immediately used the power of the Thunder Flame Sword, and a powerful sword energy slashed towards the giant's fist. The sword energy collided with the fist, making a loud noise, and the powerful impact shattered the surrounding rocks.

Naruto was not to be outdone, he used the power of the golden nine-tailed beast, and a huge beast jade condensed in his hand. He threw the beast jade towards the rock giant, and the beast jade exploded, and the powerful impact made the giant retreat a few steps.

The rock giant was enraged, and it attacked again. It opened its mouth and spit out a powerful beam of earth magic. This beam, with great destructive power, swept towards Lu Fei and Naruto.

Lu Fei and Naruto quickly dodged the attacks of magic beams. They quickly shuttled through the cave, using the terrain and rocks to avoid the attacks of the giants.

During the battle, Lu Fei and Naruto kept looking for the weakness of the rock giant. They found that the head of the giant seemed to be its control center.

"Naruto, attack its head." Lu Fei shouted.

Naruto nodded, and he used the power of the golden nine-tailed beast to send a huge tailed beast ball flying towards the head of the rock giant. The tailed beast ball exploded, and the powerful impact caused severe damage to the giant's head.

The rock giant roared in pain, and its body began to shake. Lu Fei took the opportunity to launch a full-strength attack, and the Thunder Flame Sword slashed the giant's body, cutting a deep crack in its body.

However, the rock giant was not defeated so easily. It began to repair itself, and the cracks on its body healed quickly.

"This guy is pretty tenacious." Naruto said.

Lu Fei frowned, "We must find a more effective way to defeat it."

They began to observe the movement patterns of the rock giant, looking for its flaws. After some observation, they found that the rock giant would pause for a moment when launching an attack.

"It's time!" Lu Fei shouted.

When the rock giant attacked again, Lu Fei and Naruto seized the moment of pause. Lu Fei used the strongest power of the Thunder Flame Sword, and a huge sword energy slashed towards the heart of the giant. Naruto also used the power of the golden nine-tailed beast at the same time, and a huge tailed beast ball flew towards the same place.

The sword energy and the Tailed Beast Ball hit the heart of the rock giant at the same time, making a loud noise that shook the earth. The rock giant's body began to collapse and eventually turned into a pile of rubble.

As the rock giant fell, the cave returned to peace. Lu Fei and Naruto breathed a sigh of relief, knowing that this battle was just the beginning, and there were more challenges waiting for them in this mysterious cave.