Naruto Bond

After leaving the collapsed dark castle, Lu Fei and Naruto headed towards another part of the mountain. They walked along a narrow valley, and the eerie sound of the wind echoed in the valley, as if it was the unwilling roar of the dark power.

When they reached the depths of the valley, they found a mysterious ruin. The ruin was built of huge stones, which were engraved with ancient and obscure runes. These runes emitted a faint light, and seemed to be telling stories from long ago.

"This relic looks very unusual. Maybe it hides something important." Lu Fei said as he stared at the ruins.

Naruto curiously approached a stone and reached out to touch the rune on it. The moment his fingers touched the rune, a dazzling light suddenly shot out from the ruins, enveloping them.

When the light faded, they found themselves in a strange space filled with colorful mist, in which some illusory images emerged faintly, showing the scenes of the continent's battle with the dark forces.

"Is this... a memory from the past?" Naruto said in surprise.

They shuttled through this space, trying to find an exit and more clues about the dark power. Suddenly, a group of guardian spirits composed of light appeared in front of them. These guardian spirits had different shapes, some were like agile birds, and some were like ferocious beasts, but they all emitted powerful energy fluctuations.

"Outsiders are not allowed to trespass here!" A guardian spirit shaped like a Qilin issued a majestic voice.

"We have no intention of offending you, we are just looking for ways to fight against the forces of darkness," Lu Fei explained.

"If you want to pass, you must accept our test." said the guardian spirit.

The test began immediately, and the guardian spirits launched an attack. They cast various light spells, such as light arrows, light shields, light explosions, etc., and attacked Lu Fei and Naruto.

Lu Fei wielded the Thunder Flame Sword, and the flames on the sword collided with the power of lightning and light magic, splashing bursts of energy sparks. Naruto performed the Shadow Clone Technique, and the shadow clones dispersed and engaged in close combat with the guardian spirits, trying to find their weaknesses.

During the battle, Lu Fei discovered that these guardian spirits would have a short period of energy recovery after launching a powerful attack, and their defenses would be relatively weak at that time.

"Naruto, take advantage of the opportunity to attack after they attack!" Lu Fei shouted loudly.

After hearing this, Naruto immediately ordered his shadow clones to seize the opportunity. The real Naruto used "Senjutsu? Lava Release? Rasenshuriken" and threw it at a guardian spirit that had just launched a powerful light explosion attack.

The Lava Release Rasenshuriken hit the guardian spirit accurately. The guardian spirit's body flashed a few times and a crack appeared.

Lu Fei took the opportunity to perform the "Flame Thunder Soul Breaking Slash". He increased the power of the Thunder Flame Sword to the extreme and slashed at the crack of the guardian spirit with all his strength. This sword contained a powerful force and successfully broke the guardian spirit, turning it into countless light fragments that dissipated in the air.

The other guardian spirits saw their companions being defeated and attacked more fiercely. But Lu Fei and Naruto cooperated with each other and gradually found the rhythm to deal with the attacks of the guardian spirits. After a hard fight, they finally succeeded in defeating all the guardian spirits.

As the guardian spirit dissipated, the colored mist in the space began to gather and formed a huge ball of light. A book emitting golden light slowly emerged from the ball of light.

Lu Fei and Naruto approached the light ball and picked up the book. When they opened it, they found an ancient and powerful sealing technique that specifically targeted the source of dark power and could seal it permanently.

"This is exactly what we need!" Lu Fei said excitedly.

Just as they were about to study the sealing technique carefully, the space suddenly began to shake violently and cracks appeared.

"Oh no, this space is about to collapse, we have to leave quickly!" Naruto shouted.

They followed the route they remembered to enter the space and searched for the exit. At the moment when the space was about to collapse completely, they successfully found the exit and escaped.

Back outside the ruins, they sat on a stone and began to study the sealing technique in the golden book. After some research, they gradually mastered the basic principles and methods of sealing, but to truly perform successfully, they still needed to find some special materials and a suitable sealing location.

"It seems we have a new mission. Let's go find materials first." Lu Fei said.

Following the hints in the classics, they headed towards a mysterious mineral vein in the mountains. It was said that there might be a special ore needed for the sealing technique there.

On the way to the mine, they encountered a rare landslide, and a large amount of rocks rolled down the mountain and rushed towards them.

Lu Fei quickly inserted the Thunder Flame Sword into the ground, and the power of the artifact was injected into the ground through the sword, forming a solid energy shield to block the rolling rocks. Naruto then performed the Shadow Clone Technique, and the shadow clones helped Lu Fei to reinforce the shield, while the real Naruto was looking for the cause of the landslide.

After some exploration, they discovered that a huge dark ground beast was active in the mountains, and its power fluctuations caused instability in the mountains.

This dark ground beast is huge, covered with a black shell, with huge fangs and sturdy limbs. Every step it takes makes the ground shake.

"It's a dark creature again. We can't let it run away this time!" Lu Fei said.

They rushed towards the dark ground beast. Lu Fei used the "Flame Thunder Tyrant Slash" and slashed at the ground beast's head. The ground beast used its huge fangs to block, and the sword blade collided with the fangs, splashing sparks.

Naruto used "Senjutsu Wind Style Nine-tailed Rasenshuriken" and threw it towards the belly of the ground beast. The ground beast sensed the danger and tried to dodge, but Lu Fei increased the intensity of the attack and restrained its movement.

The spiral shuriken accurately hit the belly of the ground beast. The ground beast let out a painful roar, and the shell on its abdomen was shattered, and black blood gushed out.

Lu Fei took the opportunity to perform the "Flame Thunder Final Slash". He increased the power of the Thunder Flame Sword to the extreme and slashed at the heart of the ground beast with all his strength. This sword contained a powerful force and successfully pierced the heart of the ground beast. The huge body of the ground beast fell down with a bang, raising a cloud of dust.

After dealing with the dark beast, they continued to move towards the mine. Finally, they found the mysterious mine. After some digging and searching in the mine, they successfully found the special ore needed for the sealing technique.

"Now that we have the materials, the next step is to find a suitable sealing location." Lu Fei said.

They left the mine with the ore.