While the player is in Battle Through the Heavens, the system is in The Great Ruler.

Chapter 36 The Whereabouts of the Cold Spring
"The guild's beast fire is the guild's public property. Although I am a fourth-grade alchemist, I cannot make decisions on my own. I'm afraid we'll have to wait for that old man Frank to return before we can decide on this matter."

"Go tell Guhe that although I am willing to help, the rules cannot be broken. Let him... find another way."

Otto shook his head, a troubled look on his face, and said in a rather helpless tone.

As a veteran of the Blackrock City Alchemist Guild, he usually focused solely on his alchemy studies, leaving all guild affairs to the guild leader, Frank. However, Frank had been summoned by the Imperial Capital headquarters to discuss the Alchemist Conference and was currently not in the city.

The waiter bowed and agreed, then turned and left.

After saying that, Otto waved to everyone in the hall and said loudly, "Everyone, disperse and go about your own business."

He turned to look at Lu Yu, a kind smile on his face: "Young friend, do you have some free time? I would like to have a private chat with you."

Lu Yu smiled apologetically and cupped his hands, saying, "I'm truly sorry, Master Otto. I have friends waiting outside, so I must take my leave now. I'll definitely visit you another day to seek your guidance."

A hint of disappointment flashed in Otto's eyes, but he still maintained a gentle smile: "It's alright, young friend, please go ahead with your work. We'll meet again another day."

Watching Lu Yu's departing figure, Lin Fei pouted and muttered, "He didn't even say thank you, and I was the one who took him to register!"

"You think you just care about a thank you? What are you really thinking? Do you think people can't tell?"

Otto stroked his beard, shook his head and chuckled: "Silly girl, such a person is not someone you can aspire to. Focusing on studying alchemy is the right path for you."

"Teacher!" Linfei stomped her foot angrily, "How can you belittle your own student like that?"

Otto laughed heartily, teasingly saying, "Then let me put it another way? A toad trying to eat swan meat?"

"Teacher! If you keep doing this, I won't make you tea anymore!" Linfei turned and ran away in embarrassment and anger, which made Otto burst into another hearty laugh.

……

Soon after,

Lu Yu walked out of the Alchemist Guild, his black alchemist robe fluttering in the wind, perfectly outlining his tall and straight figure.

The third-rank badge on his chest gleamed in the sunlight, its three silver ripples flowing like mercury, attracting the attention of passersby.

"Old Zhou! Look!" The guard at the door nudged his companion with his elbow. The two of them stared wide-eyed at the badge on Lu Yu's chest in disbelief.

The guard named Old Zhou was taken aback, then suddenly realized something and hurriedly stepped forward, bowing so low that his back almost touched the ground: "Sir, please wait!"

Lu Yu paused slightly, raising an eyebrow at him: "What is it?"

Old Zhou held a white jade bottle in both hands, fine beads of sweat appearing on his forehead: "My lord, this is the elixir you just bestowed upon me. I was blind and dared not accept such a precious reward..."

His voice trailed off, and his hands holding the medicine bottle trembled slightly.

Lu Yu smiled calmly and said, "Keep it. Since I've given it to you, there's no reason to take it back. Consider this bottle of Qi-restoring pills as a way to establish good karma."

Old Zhou was startled, then bowed deeply, saying gratefully, "Thank you for your generous gift, sir. I will never forget it! I will never forget it, no matter how much I need your help in the future..."

Lu Yu raised his hand to support Old Zhou, and a gentle aura lifted him up: "There's no need for that."

After saying that, he asked casually, "I think I just heard some news about Master Guhe?"

Old Zhou immediately understood and lowered his voice to say, "Reporting to your Excellency, Master Guhe has been staying at Qingnangzhai in the south of the city these past few days, supposedly to suppress the poison in the Yunlan Sect Master who was poisoned."

"The day before yesterday, he issued a bounty throughout the city, inviting powerful individuals with fifth-tier or higher beast fire or those proficient in sealing techniques to assist him. It is said that the reward is quite generous, even including pills like Battle Spirit Pills and Imperial Extreme Pills..."

Lu Yu nodded slightly, already having made up his mind. He casually tossed a bottle of pills to Old Zhou: "This is your reward."

Old Zhou hurriedly accepted it, tears of gratitude streaming down his face: "Thank you so much, sir! I've also heard that Master Guhe has been agitated these past few days, and it seems that the woman's condition is not optimistic."

"I see."

Lu Yu nodded thoughtfully, then turned and left, thinking to himself, "It seems Yun Yun's condition is more serious than I thought... Fifth-tier beast fire or a sealing technique? This Five Serpent Poison Seal is probably more complicated than I imagined..."

……

"Kid, you passed the exam for a third-rank official?"

Hai Bodong looked at the third-grade alchemist medal on Lu Yu's chest, a look of surprise appearing in his eyes, his face full of disbelief. He had originally thought that for this young man to cultivate to the level of a seven-star Grand Dou Master at such a young age was already an astonishing achievement.

Furthermore, with the ability to control a different kind of fire, becoming a first-grade alchemist doesn't seem so unacceptable.

But he never expected that this kid would actually pass the exam to become a third-rank official!
It should be noted that the highest-level alchemists in the entire Jiama Empire are only at the sixth rank, and the third rank is already considered to be quite accomplished. There are not many of them in the entire Jiama Empire!

Lu Yu smiled and said, "Elder Hai didn't ask me before. I never said I wanted to take the exam to become a first-grade alchemist."

"Little Fairy Doctor, Young Master is so amazing!"

The eyes of Qinglin beside him were filled with admiration.

"What's so great about it? It's just that I refined a few more batches of pills."

Although Little Fairy Doctor said this, she couldn't suppress the smile on her lips.

It seems that it wasn't Lu Yu who passed the exam to become a third-grade alchemist, but rather she.

"Alright, it's getting late. I'm sorry to have kept you waiting. My treat, let's go to the best restaurant in Blackrock City for a meal."

Lu Yu said with a smile.

"Okay! I want lotus root soup!"

Qinglin waved her little hands and cheered excitedly.

……

Soon after,

After lunch, Lu Yu arranged for Little Fairy Doctor and Qing Lin to return to the inn to rest.

He and Hai Bodong wandered through the streets and alleys of Black Rock City, and after passing through more than ten crisscrossing streets, they stopped in front of a secluded building in the south of the city.

The building had a rather peculiar shape, with vines climbing all over its mottled exterior walls, giving it a mysterious air.

"Kid, we're here."

"Is the icy spring you're looking for really here?"

“Master Gut is the elder brother of Dan Wang Guhe. He is extremely obsessed with collecting all kinds of rare and precious materials. If he doesn’t have any treasures in the entire Jia Ma Empire, then no other place will have them either.”

"Let's go inside."

Lu Yu straightened his robes and spoke calmly. Before he finished speaking, he had already stepped forward.

Hai Bodong snorted softly and followed closely behind. The two walked one after the other toward the strangely patterned gate.

The two pushed open the door and entered, walked up several rotten wooden steps, and pushed open the door to the rooftop room. A strange smell mixed with herbs and metal greeted them.

In the dimly lit room, all sorts of strange collectibles were piled up haphazardly on the shelves, and a hunched figure was fiddling with something in the corner.

"Who is it?" A hoarse voice came from the shadows. "If you're here to buy ordinary medicinal herbs, turn left after you go out and go to Baicaotang."

Lu Yu smiled slightly and stepped forward: "Master Gu Te, I have come for the Ice Spirit Cold Spring."

"Ice Spirit Cold Spring?"

The hunched figure suddenly turned around, revealing a wrinkled old face. He grinned, showing a few yellowed teeth: "Interesting...very interesting. Guhe just swapped the things a few days ago, you're just late..."

Lu Yu frowned slightly: "May I ask, Master, what is Gu He's purpose in exchanging this item for?"

Gu Te narrowed his cloudy eyes and slowly said, "I heard it's to try fusing two sixth-order beast flames to detoxify the sect leader of the Yunlan Sect..."

He suddenly lowered his voice, "However, fusing with beast fire is extremely dangerous, and this Ice Spirit Spring is merely a life-saving measure he prepared. In my opinion, it should still be in his possession..."

……

(End of this chapter)