Rumble~ Thunder roared as silver serpents danced wildly.

"I wonder when it will clear up?" Lu Yu stood at the cave entrance, gazing at the sky shrouded by dark clouds.

He had already stopped collecting fake lightning strike wood cores outside, waiting for the weather to clear to pick the Thunder Source Fruit.

Glancing at the incessant wind and rain, Lu Yu walked into the interior of the cave, where it was warm and dry.

Sitting in the cave, Lu Yu did not stop improving his strength.

He searched through the mall for suitable sword techniques to fuse and enhance the damage of Asura Slash.

Currently, Asura Slash was at spirit level five, and when upgraded to spirit level six, Lu Yu would use the Dao Reflection Stone acquired from the Soldier's Secret Realm to strive for Asura Slash to break through to level seven and become high-grade spirit-level martial arts.

The gap between seventh-grade martial arts and sixth-grade martial arts is enormous. It is not an exaggeration to say that a Martial Cultivator at the peak of the Qi Control Realm could, through attaining an offensive seventh-grade martial art, even pose a threat to strong opponents in the Sea of Qi Realm.

Thinking of this, Lu Yu reflected on the past and realized that he had confronted strong opponents at the Sea of Qi Realm level many times but rarely had he slain them.

The only Sea of Qi Realm strong opponent Lu Yu had slain was a sea tribe of the Demon Spirit Realm, trapped in a wall under the Sea of Spirits' ruins behind Yunhai City, using earth escape.

The sea tribe had no power to resist and was slain by Lu Yu.

In Lu Yu's hand appeared a book of martial arts. After reading and generating a skill template, his skill bar gained a skill, and then he elevated the martial art to its pinnacle.

By fusing the pinnacle martial art into Asura Slash, he expended about 900,000 experience points.

The power of Asura Slash increased again by 50%. Currently, Asura Slash can amplify damage by 3.5 times, and the extreme amplification reaches 6 times.

Looking at the experience points he had, he realized he had consumed 7 million experience points upgrading to the seventh rank of the Qi Control Realm, leaving around 3 million experience points.

Later, in the final battle at the west suburban battlefield, Lu Yu harvested nearly 2 million experience points, leaving him with 4,056,321 experience points currently.

After squandering over 4 million experience points and merging 4 similar martial arts, Asura Slash's quality upgraded to spirit level six.

In its regular state, it can also unleash 5 times the power, and in its extreme state, it can unleash 9 times the power.

The extreme explosive power is comparable to a top-grade sixth-grade martial art.

"It's time to use the Dao Reflection Stone," Lu Yu found the Dao Reflection Stone in his backpack.

The Dao Reflection Stone was a fragment of the Dao Reflection Stone at the center of the Soldier's Secret Realm, with an indescribable power swirling atop it.

Gripping the Dao Reflection Stone, Lu Yu closed his eyes and quieted his mind, shutting off external senses. The swaying wind and rain and the booming thunder seemed unable to reach his ears; all his perception was focused on the Dao Reflection Stone.

The martial arts path of Asura Slash floated in his heart. The cultivation path of Asura Slash was a dead end, but under the Dao Reflection Stone's influence, Lu Yu seemed to see several forks in the road at his feet.

These forks represented the evolution paths of Asura Slash: power, attack speed, explosion... Lu Yu had no hesitation and sprinted toward the path of explosive training.

Countless inspirations for improving Asura Slash burst forth in his heart. Asura Slash rapidly deduced in Lu Yu's mind, launching an assault toward becoming a seventh-grade martial art.

Lu Yu didn't know how much time had passed, but the Dao Reflection Stone in his hand had already shattered into ashes and dispersed, with an overwhelming aura emanating from him.

The breath around Lu Yu converged into a single mass, internalized, only detectable to others when he explodes with power.

The breath inside him kept swelling, seemingly without limit.

[Asura Slash Martial Art Advancement!!! Spirit Level Six Advances to Spirit Level Seven]

Asura Slash became a seventh-grade martial art capable of unleashing 10 times the power in a single strike.

Moreover, normally, the aura and momentum would accumulate within Lu Yu, increasing over time, 20-fold, 30-fold... Even Lu Yu didn't know the limit.

Such a magnification of dozens of times is what allows a seventh-grade martial art to enable a peak Qi Control Realm martial cultivator to threaten a Sea of Qi Realm martial cultivator fundamentally.

Of course, this is Asura Slash's method. Other seventh-grade martial arts do not rely solely on martial art power to bridge enormous gaps; seventh-grade and higher martial arts all have unique attributes that become the reliance to bridge gaps.

The unique attribute of Asura Slash lies in its particularly powerful force.

Lu Yu opened his eyes, finding that the rain had stopped and the thunder had vanished.

He walked out of the cave, breathing in the fresh and moist air after the mountain rain, glancing around to see that the soil had eroded under the torrential rain, leaving muddy puddles everywhere.

Lu Yu headed toward the top of the slope, where a Thunder Source Fruit Tree was, with Thunder Source Fruits waiting for him to pick.

"Quickly, run faster! If you're late, the Thunder Source Fruit will disappear."

The urging shouts came from within the forest, and Lu Yu sensed many people swiftly approaching.

He was somewhat surprised, but then realized the abnormal frequency of lightning strikes and the unusually high yield of lightning-struck wood, quickly understanding.

These people must reside in the nearby area. They know the characteristics of this region and have discovered the Thunder Source Fruit Tree, so they appear here immediately after the thunderstorm ends.

After some thought, Lu Yu took out the Spirit Pearl, used the earth escape technique, sank into the soil, and temporarily avoided these people.

He sensed that the power on the Thunder Source Fruit Tree hadn't dissipated yet, meaning he couldn't approach to pick the fruit. It was better to let these people pave the way and see how they'd handle it.

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