Chapter 644 Tianyuan Continent

Mingyuan Fairy City, residence.

The alchemy continued.

One afternoon, a light knocking sound came from the stone door of the residence.

Li Yuan opened the door.

Xue Lang was standing outside the door.

"Fellow Daoist Li, I apologize for disturbing you." Xue Lang cupped his hands in greeting.

"Senior Xue, please come in."

Xue Lang entered the residence, sat down on a stone chair, and took out a jade slip from his robe sleeve and placed it on the table.

"No need to call me senior, we're all on the same path."

"There is a basic revision plan for a fourth-order formation that is being discussed within the sect. I would like to hear your opinion, fellow Daoist."

"My opinion?"

"Fellow Daoist is a cultivator from the lower realm, and your mastery of formations was accumulated in that environment. The spiritual energy concentration differs greatly between the upper and lower realms, so the operational characteristics of the same formation will vary depending on the spiritual energy environment."

Xue Lang's tone was calm and direct. "When the sect discusses matters internally, there's a lack of reference from the perspective of the lower realm. Fellow Daoist, you've filled that gap perfectly."

Li Yuan took the jade slip and probed it with his divine sense.

The revised plan involves the spiritual energy allocation logic of a fourth-order defensive formation. The core problem is that the formation's efficiency decays too quickly in low spiritual energy environments, and its defensive strength drops precipitously when the spiritual energy concentration falls below one-third of the upper limit standard.

This is precisely the most common problem when upper-realm formations are transplanted to the lower realm.

The upper realm array is designed with an assumed extremely high concentration of spiritual energy in the environment, and a significant proportion of the array's spiritual power supply relies on the passive replenishment of the environmental spiritual energy. Once the concentration of environmental spiritual energy becomes insufficient, the passive replenishment drops sharply, and a gap will appear in the array's spiritual power supply.

Li Yuan looked up after reading the revised plan.

"The three sets of spiritual energy buffer nodes added in the plan can alleviate the supply shortage in low spiritual energy environments, but the spiritual energy consumption of the buffer nodes themselves has not been taken into account in the overall budget. In the lower realm environment, the buffer nodes may actually accelerate the overall spiritual energy consumption of the formation."

Xue Lang's brows twitched slightly.

"continue."

"A common practice in lower realm formations is to reduce the reliance on passive replenishment and convert more spiritual energy supply into an active circulation mode."

Li Yuan used his spiritual power to draw a simplified loop structure on the table.

"In this way, the efficiency reduction of the formation in a low spiritual energy environment will change from a precipitous drop to a linear one, and the decrease in defensive strength will be controllable. The cost is that it requires higher-grade spirit stones and consumes them faster."

Xue Lang stared at the loop structure on the table and remained silent for a few moments.

"The concept of a closed loop is rarely used in the upper realm, where it's unnecessary due to the abundance of spiritual energy. However, it's certainly more reasonable in the lower realm."

He recorded the circuit structure drawn by Li Yuan on a jade slip.

"Thank you, Fellow Daoist Li. This idea is valuable for revising the plan."

Xue Lang put away the jade slip, then took out a bead from his sleeve and placed it on the table.

The bead is about the size of a longan, and is light blue in color. Fine, naturally distributed patterns are faintly visible on its surface. A faint spiritual light slowly flows inside the bead.

"Thank you. The Array Essence Pearl is somewhat helpful for array cultivation."

Within a three-foot perception range, the words rippled.

Green grade.

"Thank you." Li Yuan accepted the bead.

Touch the surface of the bead with your finger.

[Equipable item detected: Array Essence Bead]

[Equipment Attribute Preview: Array Core (Green)]

[Effect: Increases the efficiency of spiritual energy circulation between core nodes by 30% when setting up the formation; increases the ability to perceive the underlying logic of fourth-order formations by 20%]

[Preview of Permanentization Conditions: Mastery of Fourth-Order Array Formation]

The efficiency of spiritual energy circulation during array formation increases by 30%, and the perception of the underlying logic of fourth-order array formations increases by 20%. Both effects directly contribute to the advancement of fourth-order array formation cultivation.

The condition for permanentization is mastering the fourth-order array techniques. Currently, I am at the beginner level of the fourth-order array techniques, and there is still one stage of proficiency before I can master them.

The beads bring in a personal little world.

Xue Lang stood up to take his leave.

"Fellow Daoist Xue," Li Yuan said.

Xue Lang stopped in his tracks.

"Besides refining pills and selling them, what other ways are there to earn spirit stones in the Upper Realm?"

Xue Lang glanced at Li Yuan.

"Fellow Daoist, are you short of spirit stones?"

"I need some money."

Xue Lang thought for a moment.

"The circulation of spirit stones in the upper realm is mainly through the sect system, and it is very inefficient for independent cultivators to earn spirit stones. However, if you are willing to make a trip to the lower realm, there is a better way."

"How so?"

"The spiritual materials and medicinal herbs in the lower realm are more abundant than in the upper realm, especially the low- and mid-grade materials, which are much cheaper. Sects have regular missions to transport supplies between the lower and upper realms. After accepting these missions, we can purchase raw materials in the lower realm and bring them back to the upper realm for processing and sale. The price difference is quite considerable."

Xue Lang paused.

"If you are skilled in alchemy, the cost of purchasing third-grade spiritual materials in the lower realm is only about 20% to 30% of that in the upper realm. After refining the pills, you can sell them in the upper realm and the profit will at least triple."

"However, there are also risks in the lower realm. Each time a cultivator crosses a spatial passage, it causes damage to their body. The more supplies they carry, the greater the spatial pressure and the greater the damage. Most cultivators only go up or down once in their lifetime and do not repeatedly go back and forth."

Li Yuan nodded, as the supplies in his personal space were almost depleted due to frequent pill refining.

Although the supplies are plentiful, they do not only cover one or two kinds of medicinal herbs.

"Thank you, Fellow Daoist Xue."

Xue Lang bowed and took his leave, departing from his residence.

The stone gate was closed.

Li Yuan sat down cross-legged and pondered for a moment.

The supply transport mission to the Tianyuan Realm was previously seen in the Mission Hall. It offers double rewards: contribution points and spirit stones, and allows you to freely purchase spiritual materials in the Tianyuan Realm.

One trip can not only complete the task and earn contribution points and spirit stones, but also purchase a large amount of spiritual materials at a low price as raw material reserves for subsequent alchemy.

The next day, Li Yuan went to the Mingyuan Sect's mission hall.

Accept the mission: Transport a batch of supplies to the lower realm branch of Mingyuan Sect in Tianyuan Realm, and bring back the supplies sent back from the lower realm by the branch to the upper realm.

After the materials list and mission details were handed over, the mission hall's steward handed over a storage bag.

"Passage protection supplies. Two pills and four talismans. Take the pills before entering the passage, and affix two talismans to your chest and two to your back."

Li Yuan took the storage bag and opened it to check.

The elixir is the Empty Meridian Opening Yuan Pill, of superior quality. The talisman is the Passage Protection Talisman, of excellent quality.

It was of higher quality than the batch he had previously received from the Tianyue Sect.

Elixirs and talismans are collected in the personal miniature world.

The storage bag contained various fourth-tier spiritual materials and medicinal ingredients needed for the branch sect; it was small in size but valuable.

Transforming into a beam of light, they left the Mingyuan Sect and flew towards the spatial passage stronghold in the northeast.

They arrived at the base approximately one day later.

The stone buildings on the wasteland were just as they had been the last time I visited, with the dark blue spatial cracks at the top of the stone towers operating steadily.

The base disciples verified the mission token and then allowed the passage.

Li Yuan walked to the bottom of the stone tower and stepped into the spatial passage.

The eerie blue light engulfed its form.

The pressure inside the passage was squeezed in from all directions.

The red attribute in the core of the small world collapse is passively activated, rendering spatial damage completely ineffective.

Several hours later, a light curtain appeared at the end of the passage.

Passing through the light curtain.

The concentration of spiritual energy suddenly decreased.

The spiritual energy, which was more than ten times denser than that of the lower realm, suddenly dropped to about one-third to one-quarter of the level of the upper realm.

But it is still far higher than the lower realm where Li Yuan originally lived.

Based on physical sensation, the concentration of spiritual energy in the Tianyuan Realm is about three to four times that of the lower realm.

The exit of the passage is located on a stone platform on the mountainside of a huge mountain.

The stone platform was larger than the stronghold in the upper realm, and was surrounded by dense defensive formations. The formations ranged from the third to the fourth rank, with stable spiritual energy circulation, and the layout techniques clearly originated from the inheritance of the upper realm.

Below the stone platform is a sect building complex built against the mountain.

It is a vast complex that occupies the entire mountain peak and several surrounding sub-peaks, with buildings stretching from the foot of the mountain to the summit, layer upon layer. The spiritual energy concentration in the core area of ​​the sect is several times higher than that of the surrounding environment, and several visible spiritual veins extend outward from the depths of the mountain, supplying the spiritual energy needs of the entire sect.

The Mingyuan Sect's branch sect descended to the lower realm.

The fourth-order grand formation covered the entire sect territory. The structure of the formation was the same as that of the main peak grand formation of the Mingyuan Sect in the upper realm, but it was slightly smaller in scale and slightly lower in grade.

From the core area of ​​the formation, a very deep spiritual energy fluctuation faintly emanated from the direction of the mountaintop.

God Transformation Level.

At least two Nascent Soul cultivators were present. One Nascent Soul cultivator remained at the branch sect to oversee the matter, while the other had already opened a spatial passage and ascended to the upper realm.

Disciples from the branch sect were there to greet them on the stone platform.

A disciple at the late stage of the Golden Core realm stepped forward to verify the mission token and the list of supplies.

"Supplies have been checked. Please follow me."

The disciple led the way, taking Li Yuan to a guest cave dwelling in the central part of the sect.

The cave dwelling was about six zhang square, and its furnishings were more elaborate than those of the upper realm residence. There was a stone platform, a stone bed, bookshelves, and a small spirit-gathering array in the corner. Outside the cave dwelling was a quiet bamboo forest, with spiritual energy flowing slowly among the bamboo leaves.

"Fellow Daoist is free to move around during the sect division period, with no restrictions within the Tianyuan Continent. For any needs, please contact the disciple on duty."

The disciple bowed and withdrew.

Li Yuan handed the storage bag of supplies to the steward in charge of receiving it, and had him check and sign for it.

The donation of supplies has been completed.

The stone gate of the cave was closed.

Li Yuan sat cross-legged on the stone platform, circulating the Nascent Soul Returning to Origin Technique.

Although the spiritual energy concentration in the Tianyuan Realm is far lower than that in the Upper Realm, it is still sufficient to support efficient cultivation. The Nascent Soul's spiritual power flows stably under multiple enhancements, and the advancement of cultivation is uninterrupted.

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