After paying 100 gold for the city entry fee at Yunhai City's gate, Lu Yu entered Yunhai City.

Indeed, it's a more prosperous city than Beifeng City. While Beifeng City can be entered and exited freely, entering Yunhai City alone costs 100 gold, depriving poor people of the privilege of even entering the city.

After sending a message to Huang Ying, Lu Yu stood not far from the city gate, waiting for her to come and pick him up.

Unfamiliar with life in Yunhai City, it's better not to wander around aimlessly.

Watching the constant flow of people coming and going, Lu Yu was somewhat emotional, wondering how much money Yunhai City must make from just the entry fees in a single day.

However, he also noticed that not everyone entering Yunhai City had to pay money.

As expected, there are privileged classes everywhere.

Just as he was in a reflective mood, a dense mist of water suddenly came rushing towards him, a creature flying in mid-air, resembling a fish more than a bird, spewing out a large amount of mist, causing people around to quickly dodge or release protective spirit armor to shield themselves from the mist.

Without protective spirit armor, Lu Yu could only release the Celestial Falling Bright Flame to evaporate the mist heading his way.

"Eek!"

The featherless flying fat fish, upon sensing the Celestial Falling Bright Flame from Lu Yu, let out a startled cry and spewed more mist as it fled swiftly outside the city gate.

The flying fat fish seemed to fear fire.

"Lanlan, stop!" a girl in a blue dress shouted.

After shouting, she turned to glare at Lu Yu and said angrily, "Why did you set a fire? You scared Lanlan."

After speaking, she chased after the fleeing fat fish, which seemed to be her pet, likely a mild-mannered magical creature of some sort.

Lu Yu found it baffling that the fat fish sprayed mist at him, and he simply evaporated the mist with fire to avoid being drenched. What's wrong with that?

Was he in the wrong? No!

Alright then! Considering she was just a child, Lu Yu decided not to argue with her.

After all, the mist had already been completely evaporated by the Celestial Falling Bright Flame, so Lu Yu retracted the flame.

The Celestial Falling Bright Flame has a high temperature, making it quite effective for burning things, but in battle, it is far less effective than the Purple Flame Demon Fire.

The Purple Flame Demon Fire can burn an enemy's soul, inflicting soul injuries and causing extreme pain, affecting the enemy's actions.

When Lu Yu was burned by the Purple Flame Demon Fire initially, he couldn't exert any strength in his hands, completely losing sensation and control.

The soul power consumed by being burned with Purple Flame Demon Fire has not fully recovered for Lu Yu yet, which is only because his soul is resilient enough not to have been severely damaged; otherwise, recovery would be another matter entirely.

Soul injuries are often difficult to heal, and there are very few elixirs or treasures that can restore soul injuries.

There are many elixirs for restoring spiritual power, but few for restoring the soul. To absorb residual souls to condense soul power and heal soul injuries, like Fei Feng, requires a strong soul in the first place.

Oh no, the soul is insufficient to absorb chaotic soul power and disregard the effects of memory fragments and remnants of consciousness within it, it requires divine soul.

Having experienced the strength of the Purple Flame Demon Fire, Lu Yu wanted to choose the Purple Flame Demon Fire as the flame absorbed by the third level of the heavenly skys. The question now is whether his cultivation level at the third level can successfully refine the Purple Flame Demon Fire.

Refining the Purple Flame Demon Fire as his possession is different from refining and expelling the Purple Flame Demon Fire from his body.

To truly master the Purple Flame Demon Fire, it must burn within one's soul.

Lu Yu is unsure if his soul can withstand the burning of the Purple Flame Demon Fire.

However, with the presence of the Dou Shen Jue, this is not a major problem.

If unable to bear it right now, then increase the level of Dou Shen Jue a few more times. As long as the level of Dou Shen Jue is high enough, his soul will be strong enough, ultimately able to withstand the Purple Flame Demon Fire.

Therefore, this time in Yunhai City, there are several tasks to accomplish.

First, find a buyer to deal with the items from the Divine Weapon Pavilion in his possession, which have been accumulating in his backpack and making movement inconvenient.

Second, cultivate spiritual power to reach the limit of the Qi Cultivation realm and break through to the Royal Qi realm.

Third, absorb the Purple Flame Demon Fire and cultivate the third level of the Seven Heavens of Ice and Fire.

Fourth, inscribe the Golden Armor Spirit Array onto himself.

Currently, Lu Yu has 1.87 million experience points, leaving 1 million to be used for upgrading his realm when spiritual power reaches its limit.

When spiritual power reaches 999 points, there is a process of spiritual power quality sublimation, requiring a long time and a vast amount of Spiritual Qi.

By using 1 million experience points, one can directly upgrade realms, breaking through the Royal Qi realm, significantly shortening the time for spiritual power quality sublimation.

Currently, he has not yet reached 999 points of spiritual power, hence unable to upgrade realms.

With the remaining 870,000 experience points, Lu Yu can use them to enhance martial arts.

The martial arts he wants to improve include Infinite Fist, Iaijutsu - Celestial Collapse, Heaven's Edge Ruler Step, and array skill Golden Armor Spirit Array.

Infinite Fist and Iaijutsu are self-created martial arts, which can be upgraded by integrating other martial arts. The integration method involves merging martial arts fragments or combining them with other martial arts cultivated to pinnacle mastery.

Martial arts fragments can only be obtained in the Secret Realm of Warriors, so the only way for Lu Yu to enhance Infinite Fist and Iaijutsu is to cultivate other martial arts intended for fusion to pinnacle mastery, then use that martial art as nourishment to enhance the power of Infinite Fist and Iaijutsu.

This consumes a large amount of experience points, making it impossible to enhance Infinite Fist and Iaijutsu in the short term.

According to Lu Yu's estimation, to break through to a fourth-grade cultivation technique, Infinite Fist needs to be integrated with at least one fourth-grade fast attack style fist technique and one fourth-grade heavy punch style fist technique, possibly even a fourth-grade fire attribute fist technique.

If Lu Yu gives up on the power of fire, he might not need to integrate a fire attribute fist technique.

Iaijutsu also needs to integrate with a similar burst-type fourth-grade sword technique martial art.

The path of enhancing self-created martial arts is arduous; even gathering martial arts is a significant issue, only Lu Yu, having access to a system mall with a vast array of martial arts at his disposal, can undertake the path of martial arts fusion.

For now, leave Infinite Fist and Iaijutsu aside, and focus on enhancing Heaven's Edge Ruler Step and Golden Armor Spirit Array.

What Lu Yu wants to enhance most is the Golden Armor Spirit Array.

As for Heaven's Edge Ruler Step, given that it's only in the novice realm currently, and he can't fully master it yet, its speed is unmatched at present, so there's no need for enhancement now.

So, Lu Yu decided to upgrade the Golden Armor Spirit Array.

Spending nearly 100,000 experience points, upgrading the Golden Armor Spirit Array.

[Skill Upgrade! Golden Armor Spirit Array (Novice) → Golden Armor Spirit Array (Slightly Accomplished)]

Continue upgrading with 200,000 experience points.

[Skill Upgrade! Golden Armor Spirit Array (Slightly Accomplished) → Golden Armor Spirit Array (Adept)]

Continuing requires 400,000 experience points, with Lu Yu still having 570,000 usable experience points, enough for one more level up.

[Skill Upgrade! Golden Armor Spirit Array (Adept) → Golden Armor Spirit Array (Mastery)]

With the Golden Armor Spirit Array reaching mastery level, Lu Yu felt he could sketch the array casually, even miniaturizing it to the size of a fingernail.

Should I inscribe the Golden Armor Spirit Array on my nails as an experiment? Lu Yu pondered while looking at his fingernails.

"Junior Brother Lu, you finally came!"

Huang Ying appeared not far away and immediately spotted Lu Yu standing by the city gate.

Though called a city gate, it was just a stone archway, without any doors to close.

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