As soon as Ye Ziyun landed, Lan Hua rushed to greet her and asked hurriedly, "Miss Ziyun, how is Ziyue?"

Ye Ziyun was almost taken aback by Lan Hua's enthusiasm, then smiled and said:

"I thought you were in such a hurry to welcome me because you wanted to ask me about the Danhuo, but I didn't expect you to be most concerned about your wife!"

Lan Hua's face turned red. "Absolutely! No matter how important the Dan Fire is, it's not as important as Zi Yue!"

Ye Ziyun showed an appreciative look and smiled, "If Ziyue knew how much you care about her, she would be very happy and at ease!"

Lan Hua asked anxiously, "Miss Ziyun, please tell me quickly, what happened to Ziyue?"

"There's nothing to worry about for now. The head of the family has arranged a marriage for Ziyue, but she's resolutely refusing, even threatening to kill herself!"

"The patriarch was furious and issued a decree that if Ziyue did not agree, she would never be allowed to leave Hanyue Valley!"

Lan Hua was deeply moved after hearing this.

For someone as weak as Zi Yue, she actually chose to go against her family; that takes immense courage.

"However, which family has the head of the family arranged a marriage for Ziyue with?" Lanhua asked.

"The Cui family of Qinghe!"

“Cui Xiangru, the eldest son of the Cui family, is a handsome man, and his cultivation is also quite high. He was a Venerable Two Hundred Years Ago. If it weren’t for you, the two of them would indeed be a good match!”

Lan Hua asked curiously, "What is the background of the Cui family of Qinghe Realm?"

"The Cui family is a prominent clan in the Heavenly Domain, and its members are masters of spear techniques, holding a leading position in the world of spear fighting!"

"Brother Lan, is there anything else you want to ask?"

Lan Hua felt somewhat disappointed. There was still a huge gap between herself and Cui Xiangru. How could she catch up?

"One last question, Miss Ziyun, you keep calling me Brother Lan, but you're definitely older than me. How old are you exactly?"

Ye Ziyun rolled her eyes. "Age is a huge secret for a girl. How can she easily tell others?"

"Just know that I'll always be eighteen!"

Lan Hua was speechless and rolled her eyes as well.

"Start upgrading your alchemical fire!" Ye Ziyun said irritably.

Upgrading the Dan Fire is inseparable from the spiritual spring, which is why Ye Ziyun brought Lan Hua to Nan Gui Valley in the first place, because there is a spiritual spring there.

Ye Ziyun said, "You only have one chance to upgrade your pill fire. If you experience any pain or unexpected events, you must endure it!"

“I understand!” Lan Huazhen nodded.

"You have two types of internal fire within you. Which one do you wish to upgrade?"

Lan Hua thought about it. When she was condensing her primordial spirit, she chose Yin-Yang dual fire as the first choice, so naturally, she should choose it to upgrade her pill fire as well.

"The Yin and Yang Fires in the Lower Abdomen Dantian!"

"Okay, let's begin!"

Ye Ziyun struck out with her palm, which landed on Lan Hua's lower abdomen, and a tremendous surge of Yuan energy flowed into her dantian.

As the Yuan energy entered her body, Lan Hua immediately showed a pained expression, closed her eyes, remembered Ye Ziyun's words, and could only endure it.

The Yuan energy that entered Lan Hua's body transformed into two thin threads, rushing towards the lightning tribulation fire.

The lightning tribulation fire had made its home in the dantian, and had long regarded the dantian as its own place. When it saw an external force invading, it immediately emitted a crackling sound of electricity.

Moreover, Lan Hua's dantian had long been accustomed to the gentle lightning tribulation fire, and when she felt the power of the electric current, she almost foamed at the mouth.

Ignoring Lan Hua's strange behavior, Ye Ziyun used her mind to control the two thin threads in her dantian, binding the lightning tribulation fire like ropes.

The lightning and fire of the tribulation blazed fiercely, trying to destroy the thin threads binding him, but to no avail.

Ye Ziyun was a Xuanzun-level expert, and the rope she conjured was incredibly powerful; it couldn't be destroyed by the lightning tribulation fire.

"Hmph, since you're unwilling to merge with the Dan Fire, then I'll force you to merge with it!"

With a flick of her finger, Ye Ziyun sent two ropes pulling the lightning tribulation fire toward the pill fire. The latter could not break free and could only watch helplessly as it approached the pill fire.

When the lightning tribulation fire and the elixir fire merged, a devastating disaster immediately occurred in Lan Hua's dantian. Sparks of two different colors flew everywhere, causing Lan Hua unbearable pain.

The alchemical fire and the tribulation lightning fire were locked in a fierce battle, each vying to devour the other.

In particular, the lightning tribulation fire wanted to replace the elixir fire, but the two are currently locked in a stalemate, which led to the disaster.

This is why Zi Yue didn't have Lan Hua upgrade her Dan Huo from the beginning.

The lightning tribulation fire at that time was too weak, and even if the pill fire absorbed it, it would have no effect.

Only by nurturing the tribulation fire to a sufficiently powerful level can the pill fire devour the tribulation fire while simultaneously stimulating its vitality.

Ye Ziyun struck again, sending a massive surge of Yuan energy into Lan Hua's dantian, fueling the dantian fire.

"Hmm? Not enough?"

Ye Ziyun summoned a golden needle, then with a flick of her left palm, the immense spiritual energy from the spiritual spring combined with the silver needle.

The golden needle shot into Lan Hua's lower abdomen, carrying immense spiritual power into her dantian.

With the help of the golden needles, the Danhuo immediately unleashed its power, devouring the lightning tribulation fire.

"Hmm? It seems to be successful!"

Ye Ziyun withdrew the golden needles and waited for Lan Hua to wake up.

At this moment, the Yin and Yang fires within Lan Hua's body continued to erupt, slowly devouring the lightning tribulation fire. Meanwhile, the aura of the pill fire was rapidly growing stronger.

The more the latter struggled, the more excited the Yin-Yang Twin Fires became. After a long time, they finally completely devoured the lightning tribulation fire.

The sharp pain in her lower abdomen gradually subsided. Lan Hua used her internal vision technique and discovered that the Yin and Yang fires in her lower dantian had become even stronger, with a primordial Yin and Yang energy swirling around them.

"This is a Celestial-grade Elixir Flame?" Lan Hua felt somewhat incredulous.

Ye Ziyun laughed and said, "That's right. If I'm not mistaken, this pill fire is the legendary Yin-Yang Two Elements Fire, a celestial-grade pill fire!"

"Yin-Yang Fire?"

Lan Hua opened her eyes and asked, "What's the difference between this and the Yin-Yang Twin Fires?"

Ye Ziyun said irritably, "Didn't you see the innate Yin and Yang energies around the Dan Huo? Yin and Yang Twin Fires don't get this treatment."

This fire can summon not only the true fire of the sun, but also the true fire of the moon; it is incomparably domineering!

Lan Hua used both hands simultaneously, activating the Dan Tian Technique. White flames appeared in her left hand, and black flames appeared in her right hand.

Each flame was surrounded by a wisp of primordial energy.

"What a domineering pill fire! No wonder it's a celestial-grade pill fire!"

Lan Hua exclaimed in admiration, and at the same time, after sensing her own cultivation level, she exclaimed in surprise, "My cultivation level has actually broken through to the eighth level of the Celestial Realm! This is too abnormal!"

Ye Ziyun crossed her arms and snorted, "Immortal-grade pill fire is different from other pill fire, and it's not comparable to your previous top-grade pill fire."

"Only by possessing a Celestial-grade Elixir Flame can you qualify to aspire to become an Emperor!"

Lan Hua was taken aback. "What? To become a Earth-rank expert, one actually needs a Celestial-grade Elixir Flame?"

Ye Ziyun nodded, "Otherwise, why are there so few emperors in this world? There are countless people more intelligent than you, but because they lack talent, they can never take that step to become an emperor!"

Lan Hua exclaimed with delight, "Then does that mean I'm guaranteed to become an emperor?"