Lu Yu walked out of the Tower of Heaven, having just experimented with the Holy Power inside. It turned out that using the Demon-Breaking Saber was more energy-efficient.

To slay a demon, using Holy Power consumes far more Spiritual Power compared to the Demon-Breaking Saber. However, in the absence of the saber, Holy Power is still a decent force, at least sufficient for emergencies.

The Holy Light Seed given by the God of Light is a bit small, with its maximum conversion rate capped at the sixth level of the Qi Cultivation stage, roughly converting 6000 units of Spiritual Power into Holy Power each time.

The Holy Light Seed can only accommodate 6000 points of Holy Power; any more would overflow and affect Lu Yu himself. To convert more Holy Power, he has to use up the current Holy Power before infusing more Spiritual Power for conversion.

The conversion has a slight loss, consuming roughly 6100 points of Spiritual Power to convert into 6000 points of Holy Power.

Lu Yu could accept this loss.

Buzzing~ the Identity Token vibrated. Someone had completed the mission he posted at the Southern Heaven Hall.

He picked up the Identity Token and looked at it, finding that the mission for the Purple Flame Demon Fire had been completed. Lu Yu was a bit excited; compared to finding a substitute for the Yinming Cold Pool, Lu Yu was more concerned about the Purple Flame Demon Fire.

After all, if he couldn't find a substitute for the Yinming Cold Pool, he could take a risk and go to Beifeng City; he could still continue Body Refinement there. But without the Purple Flame Demon Fire, there was no way to continue tempering his Fire Spirit Body.

After leaving the Southern Heaven Hall, Lu Yu teleported to Earth Fire City. People said that in the Earth Fire Demon Cave in Earth Fire City, purple-black flames had been seen, with the effect of burning souls.

Stepping out of the branch of the Divine Weapon Pavilion in Earth Fire City, Lu Yu gazed around. The city buildings were predominantly black, and the air temperature was noticeably higher than in other places. Most people on the streets wore only a thin layer of clothing, looking very cool.

If one couldn't adapt to the dry, hot air of Earth Fire City, it would be very uncomfortable to stay there.

Following the map's indications, Lu Yu headed towards the most famous danger zone in Earth Fire City—the Earth Fire Demon Cave.

The Earth Fire Demon Cave is to Earth Fire City what the Qingyan Mountains are to Beifeng City—an important source of various cultivation resources, extremely important.

More than ninety percent of Earth Fire City's local natural treasures come from the Earth Fire Demon Cave, known for producing fire and earth attribute natural treasures. Delving deeper inside, one might even find spirit medicines over a thousand years old.

"I bought this Molten Heart Core first, why are you forcing me to sell?" A voice came from a nearby shop.

"Because I'm offering more money; are you selling it to me or him?"

"Well…" The shopkeeper was in a bind. According to the rules, he should sell the Molten Heart Core to the first young man, but the latter offered too much money, making it hard to decide.

"In that case, let's fight for it. The winner gets the Molten Heart Core!" The first young man said loudly.

"If you're so eager for a beating, I'm happy to oblige."

So, the two started fighting on the street. People around them quickly moved away. Most passersby didn't pay much attention to the fighting young men; only a few stopped to watch the commotion.

This kind of 'settle disputes with a fight' style is typical for Earth Fire City, and its residents are already used to it.

Perhaps because the Martial Cultivators here practice cultivation techniques that lean towards the fire attribute, their temperaments are impulsive and fierce, shaping Earth Fire City's unique regional characteristics.

In fact, most of Earth Fire City's residents are quite enthusiastic; impulsiveness doesn't necessarily mean being easily angered.

Lu Yu bypassed the two fighting young men; several city guards had arrived at the scene. It seemed they weren't planning to stop the fight; instead, they were standing by and watching the excitement.

Eventually, after the two decided the winner, the guards caught both of them, made them pay for the public facility repairs, and then let them go.

The law enforcement in Earth Fire City is also somewhat unusual. Once, an official who descended from another region attempted to correct this atmosphere in Earth Fire City, but before long, he voluntarily applied to leave.

Impulsive and straightforward personalities have already been integrated into the soul of Earth Fire City's residents, becoming their characteristics and traits, a core that is hard to change.

"Hello, is it this way to the Earth Fire Demon Cave?" Lu Yu asked a middle-aged uncle nearby.

The uncle glanced at Lu Yu and enthusiastically said, "An outsider? First time in Earth Fire City? Come, I'll take you to the Earth Fire Demon Cave. There's a labyrinth-like Stonehenge before you get there; newcomers often get lost in it."

"Uh~ thank you, uncle." Lu Yu hadn't expected the other to be so enthusiastic; he just asked a question, and the uncle offered to take him to the Earth Fire Demon Cave.

The mysterious uncle's strength was around the eighth level of the Qi Cultivation stage. In Lu Yu's perception, the uncle harbored no other intentions; he merely wanted to help him.

As the two walked out of Earth Fire City, the uncle chatted while walking, "It's your first time in Earth Fire City, so you must not miss the fiery spectacle at night. It's a sight you won't see elsewhere, and you can experience what it's like to stand on fire; you definitely can't miss it."

"Young man, you look quite sturdy. Do you have a girlfriend? If not, I could introduce some girls to you. Don't worry, Earth Fire City's girls are surely the most enthusiastic and fiery; I'm sure you'll like them…"

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